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/*
* Copyright 2013 INRIA.
* Copyright 2014 Ludwig Knüpfer <ludwig.knuepfer@fu-berlin.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup sys_shell_commands
* @{
*
* @file
* @brief Shell command implementation for the peripheral RTC interface
*
* @author Oliver Hahm <oliver.hahm@inria.fr>
* @author Ludwig Knüpfer <ludwig.knuepfer@fu-berlin.de>#
*
* @}
*/
#ifdef FEATURE_PERIPH_RTC
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include "periph/rtc.h"
static void _alarm_handler(void *arg)
{
(void) arg;
puts("The alarm rang");
}
static int dow(int year, int month, int day)
{
/* calculate the day of week using Tøndering's algorithm */
static int t[] = {0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4};
year -= month < 3;
return (year + year/4 - year/100 + year/400 + t[month-1] + day) % 7;
}
static int _parse_time(char **argv, struct tm *time)
{
short i;
char *end;
i = strtol(argv[0], &end, 10);
time->tm_year = i - 1900;
i = strtol(end + 1, &end, 10);
time->tm_mon = i - 1;
i = strtol(end + 1, &end, 10);
time->tm_mday = i;
i = strtol(argv[1], &end, 10);
time->tm_hour = i;
i = strtol(end + 1, &end, 10);
time->tm_min = i;
i = strtol(end + 1, &end, 10);
time->tm_sec = i;
time->tm_wday = dow(time->tm_year + 1900, time->tm_mon + 1, time->tm_mday);
time->tm_isdst = -1; /* undefined */
return 0;
}
static int _print_time(struct tm *time)
{
printf("%04i-%02i-%02i %02i:%02i:%02i\n",
time->tm_year + 1900, time->tm_mon + 1, time->tm_mday,
time->tm_hour, time->tm_min, time->tm_sec
);
return 0;
}
static int _rtc_getalarm(void)
{
struct tm t;
if (rtc_get_alarm(&t) == 0) {
_print_time(&t);
return 0;
}
else {
puts("rtc: error getting alarm");
return 1;
}
}
static int _rtc_setalarm(char **argv)
{
struct tm now;
if (_parse_time(argv, &now) == 0) {
if (rtc_set_alarm(&now, _alarm_handler, NULL) == -1) {
puts("rtc: error setting alarm");
return 1;
}
return 0;
}
return 1;
}
static int _rtc_gettime(void)
{
struct tm t;
if (rtc_get_time(&t) == 0) {
_print_time(&t);
return 0;
}
else {
puts("rtc: error getting time");
return 1;
}
}
static int _rtc_settime(char **argv)
{
struct tm now;
if (_parse_time(argv, &now) == 0) {
if (rtc_set_time(&now) == -1) {
puts("rtc: error setting time");
return 1;
}
return 0;
}
return 1;
}
static int _rtc_usage(void)
{
puts("usage: rtc <command> [arguments]");
puts("commands:");
puts("\tinit\t\tinitialize the interface");
puts("\tpoweron\t\tpower the interface on");
puts("\tpoweroff\tpower the interface off");
puts("\tclearalarm\tdeactivate the current alarm");
puts("\tgetalarm\tprint the currently alarm time");
puts("\tsetalarm YYYY-MM-DD HH:MM:SS\n\t\t\tset an alarm for the specified time");
puts("\tgettime\t\tprint the current time");
puts("\tsettime YYYY-MM-DD HH:MM:SS\n\t\t\tset the current time");
return 0;
}
int _rtc_handler(int argc, char **argv)
{
if (argc < 2) {
_rtc_usage();
return 1;
}
else if (strncmp(argv[1], "init", 4) == 0) {
rtc_init();
}
else if (strncmp(argv[1], "poweron", 7) == 0) {
rtc_poweron();
}
else if (strncmp(argv[1], "poweroff", 8) == 0) {
rtc_poweroff();
}
else if (strncmp(argv[1], "clearalarm", 8) == 0) {
rtc_clear_alarm();
}
else if (strncmp(argv[1], "getalarm", 8) == 0) {
_rtc_getalarm();
}
else if (strncmp(argv[1], "setalarm", 8) == 0) {
_rtc_setalarm(argv + 2);
}
else if (strncmp(argv[1], "gettime", 7) == 0) {
_rtc_gettime();
}
else if (strncmp(argv[1], "settime", 7) == 0) {
_rtc_settime(argv + 2);
}
else {
printf("unknown command: %s\n", argv[1]);
return 1;
}
return 0;
}
#else
#include <stdio.h>
int _rtc_handler(int argc, char **argv)
{
(void) argc;
(void) argv;
puts("not implemented");
return 1;
}
#endif /* FEATURE_RTC */
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