From 7d0119fe811a08d408019912fadb6850d2caeb6a Mon Sep 17 00:00:00 2001 From: Bertrik Sikken Date: Sun, 12 Apr 2009 18:00:53 +0000 Subject: FS#9985: The OF of AMS sansas seems to keep time in seconds since 1970-1-1 instead of 1980-1-1 used in earlier sansas, so apply an adjustment for this difference when reading/writing the RTC. This avoids resetting of date/time by the OF. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20697 a1c6a512-1295-4272-9138-f99709370657 --- firmware/drivers/rtc/rtc_as3514.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/firmware/drivers/rtc/rtc_as3514.c b/firmware/drivers/rtc/rtc_as3514.c index 878f204..d20e021 100644 --- a/firmware/drivers/rtc/rtc_as3514.c +++ b/firmware/drivers/rtc/rtc_as3514.c @@ -19,11 +19,18 @@ * ****************************************************************************/ #include +#include "config.h" #include "rtc.h" -#include "i2c-pp.h" #include "as3514.h" #include "ascodec.h" +/* AMS Sansas start counting from Jan 1st 1970 instead of 1980 */ +#if (CONFIG_CPU==AS3525) +#define SECS_ADJUST 315532800 /* seconds between 1970-1-1 and 1980-1-1 */ +#else +#define SECS_ADJUST 0 +#endif + #define MINUTE_SECONDS 60 #define HOUR_SECONDS 3600 #define DAY_SECONDS 86400 @@ -61,6 +68,7 @@ int rtc_read_datetime(unsigned char* buf) tmp[i] = ascodec_read(AS3514_RTC_0 + i); } seconds = tmp[0] + (tmp[1]<<8) + (tmp[2]<<16) + (tmp[3]<<24); + seconds -= SECS_ADJUST; /* Convert seconds since Jan-1-1980 to format compatible with * get_time() from firmware/common/timefuncs.c */ @@ -160,6 +168,7 @@ int rtc_write_datetime(unsigned char* buf) + (buf[4]-1)*DAY_SECONDS + month_days*DAY_SECONDS + year_days*DAY_SECONDS; + seconds += SECS_ADJUST; /* Send data to RTC */ for (i=0;i<4;i++){ -- cgit v1.1