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author | Jens Arnold <amiconn@rockbox.org> | 2006-03-10 19:17:01 +0000 |
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committer | Jens Arnold <amiconn@rockbox.org> | 2006-03-10 19:17:01 +0000 |
commit | a738c3be31637872c622953fe749e10e295a9cd4 (patch) | |
tree | bc751aa73868fee79f742a992d5556cc325da9be /firmware/common/timefuncs.c | |
parent | 63ba93c9ca33094b61cdd4c14d8794fc78ddd1a2 (diff) | |
download | rockbox-a738c3be31637872c622953fe749e10e295a9cd4.tar.gz rockbox-a738c3be31637872c622953fe749e10e295a9cd4.zip |
Iriver firmware compatibility kludge: RTC year offset. The offset is chosen in a way to make leap years work correctly in rockbox; the original firmware will still be one year off but doesn't reset the date anymore. [We don't want to wait until 2016 ;-) ]
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8991 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/common/timefuncs.c')
-rw-r--r-- | firmware/common/timefuncs.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/firmware/common/timefuncs.c b/firmware/common/timefuncs.c index 5cf1a35a77..fb16f0c253 100644 --- a/firmware/common/timefuncs.c +++ b/firmware/common/timefuncs.c | |||
@@ -62,7 +62,15 @@ struct tm *get_time(void) | |||
62 | tm.tm_wday = rtcbuf[3] & 0x07; | 62 | tm.tm_wday = rtcbuf[3] & 0x07; |
63 | tm.tm_mday = ((rtcbuf[4] & 0x30) >> 4) * 10 + (rtcbuf[4] & 0x0f); | 63 | tm.tm_mday = ((rtcbuf[4] & 0x30) >> 4) * 10 + (rtcbuf[4] & 0x0f); |
64 | tm.tm_mon = ((rtcbuf[5] & 0x10) >> 4) * 10 + (rtcbuf[5] & 0x0f) - 1; | 64 | tm.tm_mon = ((rtcbuf[5] & 0x10) >> 4) * 10 + (rtcbuf[5] & 0x0f) - 1; |
65 | #ifdef IRIVER_H300_SERIES | ||
66 | /* Special kludge to coexist with the iriver firmware. The iriver firmware | ||
67 | stores the date as 1965+nn, and allows a range of 1980..2064. We use | ||
68 | 1964+nn here to make leap years work correctly, so the date will be one | ||
69 | year off in the iriver firmware but at least won't be reset anymore. */ | ||
70 | tm.tm_year = ((rtcbuf[6] & 0xf0) >> 4) * 10 + (rtcbuf[6] & 0x0f) + 64; | ||
71 | #else | ||
65 | tm.tm_year = ((rtcbuf[6] & 0xf0) >> 4) * 10 + (rtcbuf[6] & 0x0f) + 100; | 72 | tm.tm_year = ((rtcbuf[6] & 0xf0) >> 4) * 10 + (rtcbuf[6] & 0x0f) + 100; |
73 | #endif | ||
66 | 74 | ||
67 | tm.tm_yday = 0; /* Not implemented for now */ | 75 | tm.tm_yday = 0; /* Not implemented for now */ |
68 | tm.tm_isdst = -1; /* Not implemented for now */ | 76 | tm.tm_isdst = -1; /* Not implemented for now */ |
@@ -99,7 +107,12 @@ int set_time(const struct tm *tm) | |||
99 | rtcbuf[3]=tm->tm_wday; | 107 | rtcbuf[3]=tm->tm_wday; |
100 | rtcbuf[4]=((tm->tm_mday/10) << 4) | (tm->tm_mday%10); | 108 | rtcbuf[4]=((tm->tm_mday/10) << 4) | (tm->tm_mday%10); |
101 | rtcbuf[5]=(((tm->tm_mon+1)/10) << 4) | ((tm->tm_mon+1)%10); | 109 | rtcbuf[5]=(((tm->tm_mon+1)/10) << 4) | ((tm->tm_mon+1)%10); |
110 | #ifdef IRIVER_H300_SERIES | ||
111 | /* Iriver firmware compatibility kludge, see get_time(). */ | ||
112 | rtcbuf[6]=(((tm->tm_year-64)/10) << 4) | ((tm->tm_year-64)%10); | ||
113 | #else | ||
102 | rtcbuf[6]=(((tm->tm_year-100)/10) << 4) | ((tm->tm_year-100)%10); | 114 | rtcbuf[6]=(((tm->tm_year-100)/10) << 4) | ((tm->tm_year-100)%10); |
115 | #endif | ||
103 | 116 | ||
104 | rc = rtc_write_datetime(rtcbuf); | 117 | rc = rtc_write_datetime(rtcbuf); |
105 | 118 | ||