mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-21 01:18:52 +09:00
![Tom Rini](/assets/img/avatar_default.png)
The sandburst-specific i2c drivers have been deleted, conflict was just over the SPDX conversion. Conflicts: board/sandburst/common/ppc440gx_i2c.c board/sandburst/common/ppc440gx_i2c.h Signed-off-by: Tom Rini <trini@ti.com>
219 lines
4.1 KiB
C
219 lines
4.1 KiB
C
/*
|
|
* (C) Copyright 2001
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
/*
|
|
* RTC, Date & Time support: get and set date & time
|
|
*/
|
|
#include <common.h>
|
|
#include <command.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 int do_date(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
struct rtc_time tm;
|
|
int rcode = 0;
|
|
int old_bus;
|
|
|
|
/* switch to correct I2C bus */
|
|
#ifdef 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");
|
|
rtc_reset ();
|
|
} else {
|
|
/* initialize tm with current time */
|
|
rcode = rtc_get (&tm);
|
|
|
|
if(!rcode) {
|
|
/* insert new date & time */
|
|
if (mk_date (argv[1], &tm) != 0) {
|
|
puts ("## Bad date format\n");
|
|
break;
|
|
}
|
|
/* and write to RTC */
|
|
rcode = rtc_set (&tm);
|
|
if(rcode)
|
|
puts("## Set date failed\n");
|
|
} else {
|
|
puts("## Get date failed\n");
|
|
}
|
|
}
|
|
/* FALL TROUGH */
|
|
case 1: /* get date & time */
|
|
rcode = rtc_get (&tm);
|
|
|
|
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);
|
|
#else
|
|
I2C_SET_BUS(old_bus);
|
|
#endif
|
|
|
|
return rcode;
|
|
}
|
|
|
|
/*
|
|
* 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 */
|
|
GregorianDay (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"
|
|
);
|