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Patch #791531 by Barry McIntosh, fake time stamps for file creation/updates on Players

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4005 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Linus Nielsen Feltzing 2003-11-03 00:59:04 +00:00
parent 03c5cf17b1
commit d9e8bfee75
1 changed files with 70 additions and 7 deletions
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77
firmware/drivers/fat.c
View file

@ -725,11 +725,11 @@ static int flush_fat(void)
return 0;
}
#ifdef HAVE_RTC
static void fat_time(unsigned short* date,
unsigned short* time,
unsigned short* tenth )
{
#ifdef HAVE_RTC
struct tm* tm = get_time();
if (date)
@ -744,8 +744,68 @@ static void fat_time(unsigned short* date,
if (tenth)
*tenth = (tm->tm_sec & 1) * 100;
#else
/* non-RTC version returns an increment from the supplied time, or a
* fixed standard time/date if no time given as input */
bool next_day = false;
if (time)
{
if (0 == *time)
{
/* set to 00:15:00 */
*time = (15 << 5);
}
else
{
unsigned short mins = (*time >> 5) & 0x003F;
unsigned short hours = (*time >> 11) & 0x001F;
if ((mins += 10) >= 60)
{
mins = 0;
hours++;
}
if ((++hours) >= 24)
{
hours = hours - 24;
next_day = true;
}
*time = (hours << 11) | (mins << 5);
}
}
if (date)
{
if (0 == *date)
{
/* set to 1 August 2003 */
*date = ((2003 - 1980) << 9) | (8 << 5) | 1;
}
else
{
unsigned short day = *date & 0x001F;
unsigned short month = (*date >> 5) & 0x000F;
unsigned short year = (*date >> 9) & 0x007F;
if (next_day)
{
/* do a very simple day increment - never go above 28 days */
if (++day > 28)
{
day = 1;
if (++month > 12)
{
month = 1;
year++;
}
}
*date = (year << 9) | (month << 5) | day;
}
}
}
if (tenth)
*tenth = 0;
#endif /* HAVE_RTC */
}
#endif
static int write_long_name(struct fat_file* file,
unsigned int firstentry,
@ -861,9 +921,7 @@ static int write_long_name(struct fat_file* file,
entry[FATDIR_ATTR] = 0;
entry[FATDIR_NTRES] = 0;
#ifdef HAVE_RTC
fat_time(&date, &time, &tenth);
#endif
entry[FATDIR_CRTTIMETENTH] = tenth;
*(unsigned short*)(entry + FATDIR_CRTTIME) = SWAB16(time);
*(unsigned short*)(entry + FATDIR_WRTTIME) = SWAB16(time);
@ -1167,15 +1225,20 @@ static int update_short_entry( struct fat_file* file, int size, int attr )
sizeptr = (int*)(entry + FATDIR_FILESIZE);
*sizeptr = SWAB32(size);
#ifdef HAVE_RTC
{
unsigned short date=0, time=0;
#ifdef HAVE_RTC
unsigned short time = 0;
unsigned short date = 0;
#else
/* get old time to increment from */
unsigned short time = SWAB16(*(unsigned short*)(entry + FATDIR_WRTTIME));
unsigned short date = SWAB16(*(unsigned short*)(entry + FATDIR_WRTDATE));
#endif
fat_time(&date, &time, NULL);
*(unsigned short*)(entry + FATDIR_WRTTIME) = SWAB16(time);
*(unsigned short*)(entry + FATDIR_WRTDATE) = SWAB16(date);
*(unsigned short*)(entry + FATDIR_LSTACCDATE) = SWAB16(date);
}
#endif
rc = fat_seek( &dir, sector );
if (rc < 0)