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// SPDX-License-Identifier: GPL-2.0-only
#include <common.h>
#include <command.h>
#include <clock.h>
#include <getopt.h>
#include <linux/math64.h>
#define NSEC_PER_MINUTE (NSEC_PER_SEC * 60LL)
#define NSEC_PER_HOUR (NSEC_PER_MINUTE * 60LL)
#define NSEC_PER_DAY (NSEC_PER_HOUR * 24LL)
#define NSEC_PER_WEEK (NSEC_PER_DAY * 7LL)
static bool print_with_unit(u64 val, const char *unit, bool comma)
{
if (!val)
return comma;
printf("%s%llu %s%s", comma ? ", " : "", val, unit, val > 1 ? "s" : "");
return true;
}
static int do_uptime(int argc, char *argv[])
{
u64 timestamp, weeks, days, hours, minutes;
bool comma = false;
int opt;
timestamp = get_time_ns();
while((opt = getopt(argc, argv, "n")) > 0) {
switch(opt) {
case 'n':
printf("up %lluns\n", timestamp);
return 0;
default:
return COMMAND_ERROR_USAGE;
}
}
if (optind != argc)
return COMMAND_ERROR_USAGE;
printf("up ");
weeks = div64_u64_rem(timestamp, NSEC_PER_WEEK, ×tamp);
days = div64_u64_rem(timestamp, NSEC_PER_DAY, ×tamp);
hours = div64_u64_rem(timestamp, NSEC_PER_HOUR, ×tamp);
minutes = div64_u64_rem(timestamp, NSEC_PER_MINUTE, ×tamp);
comma = print_with_unit(weeks, "week", false);
comma = print_with_unit(days, "day", comma);
comma = print_with_unit(hours, "hour", comma);
comma = print_with_unit(minutes, "minute", comma);
if (!comma) {
u64 seconds = div64_u64_rem(timestamp, NSEC_PER_SEC, ×tamp);
print_with_unit(seconds, "second", false);
}
printf("\n");
return 0;
}
BAREBOX_CMD_HELP_START(uptime)
BAREBOX_CMD_HELP_TEXT("This command formats the number of elapsed nanoseconds")
BAREBOX_CMD_HELP_TEXT("as measured with the current clocksource")
BAREBOX_CMD_HELP_TEXT("Note: Timekeeping is co-operative. If long running code does")
BAREBOX_CMD_HELP_TEXT("not use delay/is_timeout/get_time_ns/getchar functions")
BAREBOX_CMD_HELP_TEXT("timer may overrun resulting in incorrect results")
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT ("-n", "output elapsed time in nanoseconds")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(uptime)
.cmd = do_uptime,
BAREBOX_CMD_DESC("Tell how long barebox has been running")
BAREBOX_CMD_OPTS("[-n]")
BAREBOX_CMD_GROUP(CMD_GRP_MISC)
BAREBOX_CMD_HELP(cmd_uptime_help)
BAREBOX_CMD_END
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