mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-17 07:28:51 +09:00
![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
250 lines
4.8 KiB
C
250 lines
4.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2001
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*/
|
|
|
|
/*
|
|
* RTC, Date & Time support: get and set date & time
|
|
*/
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <dm.h>
|
|
#include <rtc.h>
|
|
#include <i2c.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
static const char * const weekdays[] = {
|
|
"Sun", "Mon", "Tues", "Wednes", "Thurs", "Fri", "Satur",
|
|
};
|
|
|
|
#ifdef CONFIG_NEEDS_MANUAL_RELOC
|
|
#define RELOC(a) ((typeof(a))((unsigned long)(a) + gd->reloc_off))
|
|
#else
|
|
#define RELOC(a) a
|
|
#endif
|
|
|
|
int mk_date (const char *, struct rtc_time *);
|
|
|
|
static struct rtc_time default_tm = { 0, 0, 0, 1, 1, 2000, 6, 0, 0 };
|
|
|
|
static int do_date(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
struct rtc_time tm;
|
|
int rcode = 0;
|
|
int old_bus __maybe_unused;
|
|
|
|
/* switch to correct I2C bus */
|
|
#ifdef CONFIG_DM_RTC
|
|
struct udevice *dev;
|
|
|
|
rcode = uclass_get_device(UCLASS_RTC, 0, &dev);
|
|
if (rcode) {
|
|
printf("Cannot find RTC: err=%d\n", rcode);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
#elif defined(CONFIG_SYS_I2C)
|
|
old_bus = i2c_get_bus_num();
|
|
i2c_set_bus_num(CONFIG_SYS_RTC_BUS_NUM);
|
|
#else
|
|
old_bus = I2C_GET_BUS();
|
|
I2C_SET_BUS(CONFIG_SYS_RTC_BUS_NUM);
|
|
#endif
|
|
|
|
switch (argc) {
|
|
case 2: /* set date & time */
|
|
if (strcmp(argv[1],"reset") == 0) {
|
|
puts ("Reset RTC...\n");
|
|
#ifdef CONFIG_DM_RTC
|
|
rcode = dm_rtc_reset(dev);
|
|
if (!rcode)
|
|
rcode = dm_rtc_set(dev, &default_tm);
|
|
#else
|
|
rtc_reset();
|
|
rcode = rtc_set(&default_tm);
|
|
#endif
|
|
if (rcode)
|
|
puts("## Failed to set date after RTC reset\n");
|
|
} else {
|
|
/* initialize tm with current time */
|
|
#ifdef CONFIG_DM_RTC
|
|
rcode = dm_rtc_get(dev, &tm);
|
|
#else
|
|
rcode = rtc_get(&tm);
|
|
#endif
|
|
if (!rcode) {
|
|
/* insert new date & time */
|
|
if (mk_date(argv[1], &tm) != 0) {
|
|
puts ("## Bad date format\n");
|
|
break;
|
|
}
|
|
/* and write to RTC */
|
|
#ifdef CONFIG_DM_RTC
|
|
rcode = dm_rtc_set(dev, &tm);
|
|
#else
|
|
rcode = rtc_set(&tm);
|
|
#endif
|
|
if (rcode) {
|
|
printf("## Set date failed: err=%d\n",
|
|
rcode);
|
|
}
|
|
} else {
|
|
puts("## Get date failed\n");
|
|
}
|
|
}
|
|
/* FALL TROUGH */
|
|
case 1: /* get date & time */
|
|
#ifdef CONFIG_DM_RTC
|
|
rcode = dm_rtc_get(dev, &tm);
|
|
#else
|
|
rcode = rtc_get(&tm);
|
|
#endif
|
|
if (rcode) {
|
|
puts("## Get date failed\n");
|
|
break;
|
|
}
|
|
|
|
printf ("Date: %4d-%02d-%02d (%sday) Time: %2d:%02d:%02d\n",
|
|
tm.tm_year, tm.tm_mon, tm.tm_mday,
|
|
(tm.tm_wday<0 || tm.tm_wday>6) ?
|
|
"unknown " : RELOC(weekdays[tm.tm_wday]),
|
|
tm.tm_hour, tm.tm_min, tm.tm_sec);
|
|
|
|
break;
|
|
default:
|
|
rcode = CMD_RET_USAGE;
|
|
}
|
|
|
|
/* switch back to original I2C bus */
|
|
#ifdef CONFIG_SYS_I2C
|
|
i2c_set_bus_num(old_bus);
|
|
#elif !defined(CONFIG_DM_RTC)
|
|
I2C_SET_BUS(old_bus);
|
|
#endif
|
|
|
|
return rcode ? CMD_RET_FAILURE : 0;
|
|
}
|
|
|
|
/*
|
|
* simple conversion of two-digit string with error checking
|
|
*/
|
|
static int cnvrt2 (const char *str, int *valp)
|
|
{
|
|
int val;
|
|
|
|
if ((*str < '0') || (*str > '9'))
|
|
return (-1);
|
|
|
|
val = *str - '0';
|
|
|
|
++str;
|
|
|
|
if ((*str < '0') || (*str > '9'))
|
|
return (-1);
|
|
|
|
*valp = 10 * val + (*str - '0');
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Convert date string: MMDDhhmm[[CC]YY][.ss]
|
|
*
|
|
* 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 len, val;
|
|
char *ptr;
|
|
|
|
ptr = strchr (datestr,'.');
|
|
len = strlen (datestr);
|
|
|
|
/* Set seconds */
|
|
if (ptr) {
|
|
int sec;
|
|
|
|
*ptr++ = '\0';
|
|
if ((len - (ptr - datestr)) != 2)
|
|
return (-1);
|
|
|
|
len = strlen (datestr);
|
|
|
|
if (cnvrt2 (ptr, &sec))
|
|
return (-1);
|
|
|
|
tmp->tm_sec = sec;
|
|
} else {
|
|
tmp->tm_sec = 0;
|
|
}
|
|
|
|
if (len == 12) { /* MMDDhhmmCCYY */
|
|
int year, century;
|
|
|
|
if (cnvrt2 (datestr+ 8, ¢ury) ||
|
|
cnvrt2 (datestr+10, &year) ) {
|
|
return (-1);
|
|
}
|
|
tmp->tm_year = 100 * century + year;
|
|
} else if (len == 10) { /* MMDDhhmmYY */
|
|
int year, century;
|
|
|
|
century = tmp->tm_year / 100;
|
|
if (cnvrt2 (datestr+ 8, &year))
|
|
return (-1);
|
|
tmp->tm_year = 100 * century + year;
|
|
}
|
|
|
|
switch (len) {
|
|
case 8: /* MMDDhhmm */
|
|
/* fall thru */
|
|
case 10: /* MMDDhhmmYY */
|
|
/* fall thru */
|
|
case 12: /* MMDDhhmmCCYY */
|
|
if (cnvrt2 (datestr+0, &val) ||
|
|
val > 12) {
|
|
break;
|
|
}
|
|
tmp->tm_mon = val;
|
|
if (cnvrt2 (datestr+2, &val) ||
|
|
val > ((tmp->tm_mon==2) ? 29 : 31)) {
|
|
break;
|
|
}
|
|
tmp->tm_mday = val;
|
|
|
|
if (cnvrt2 (datestr+4, &val) ||
|
|
val > 23) {
|
|
break;
|
|
}
|
|
tmp->tm_hour = val;
|
|
|
|
if (cnvrt2 (datestr+6, &val) ||
|
|
val > 59) {
|
|
break;
|
|
}
|
|
tmp->tm_min = val;
|
|
|
|
/* calculate day of week */
|
|
rtc_calc_weekday(tmp);
|
|
|
|
return (0);
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return (-1);
|
|
}
|
|
|
|
/***************************************************/
|
|
|
|
U_BOOT_CMD(
|
|
date, 2, 1, do_date,
|
|
"get/set/reset date & time",
|
|
"[MMDDhhmm[[CC]YY][.ss]]\ndate reset\n"
|
|
" - without arguments: print date & time\n"
|
|
" - with numeric argument: set the system date & time\n"
|
|
" - with 'reset' argument: reset the RTC"
|
|
);
|