View difference between Paste ID: v5JenQXW and

-
+commit 96e5eb153e2366e81e170174be7928b8b5b6598e
 Author: Bertrik Sikken <[email protected]>
 Date:   Sun Mar 11 15:59:55 2012 +0100
 
     Convert IMX233 RTC driver (used in fuze+) to use mktime and gmtime
 
     Change-Id: Ie71d495509a81db5e02078398f5d722c00136072
 
 diff --git a/firmware/drivers/rtc/rtc_imx233.c b/firmware/drivers/rtc/rtc_imx233.c
 index 9e62476..f9694a5 100644
 --- a/firmware/drivers/rtc/rtc_imx233.c
 +++ b/firmware/drivers/rtc/rtc_imx233.c
 @@ -19,34 +19,14 @@
   *
   ****************************************************************************/
 
 +#include "config.h"
 +#include "time.h"
  #include "system.h"
  #include "rtc.h"
  #include "timefuncs.h"
  #include "rtc-imx233.h"
 
 -#if defined(SANSA_FUZEPLUS)
 -#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
 -#define WEEK_SECONDS        604800
 -#define YEAR_SECONDS        31536000
 -#define LEAP_YEAR_SECONDS   31622400
 -
 -/* Days in each month */
 -static unsigned int days_in_month[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
 -
 -static inline bool is_leapyear(int year)
 -{
 -    if( ((year%4)==0) && (((year%100)!=0) || ((year%400)==0)) )
 -        return true;
 -    else
 -        return false;
 -}
 +#define YEAR1980    315532800   /* 1980/1/1 00:00:00 in UTC */
 
  void rtc_init(void)
  {
 @@ -55,7 +35,7 @@ void rtc_init(void)
 
  int rtc_read_datetime(struct tm *tm)
  {
 -    uint32_t seconds = imx233_rtc_read_seconds() - SECS_ADJUST;
 +    uint32_t seconds = imx233_rtc_read_seconds();
      #ifdef SANSA_FUZEPLUS
      /* The OF uses PERSISTENT2 register to keep the adjustment and only changes
       * SECONDS if necessary. */
 @@ -63,100 +43,19 @@ int rtc_read_datetime(struct tm *tm)
      #else
      /* The Freescale recommended way of keeping time is the number of seconds
       * since 00:00 1/1/1980 */
 +    seconds += YEAR1980;
      #endif
 
 -    /* Convert seconds since 00:00 1/1/xxxx (xxxx=year) */
 -
 -    /* weekday */
 -    tm->tm_wday = ((seconds % WEEK_SECONDS) / DAY_SECONDS + 2) % 7;
 -
 -    /* Year */
 -    int year = 1980;
 -    while(seconds >= LEAP_YEAR_SECONDS)
 -    {
 -        if(is_leapyear(year))
 -            seconds -= LEAP_YEAR_SECONDS;
 -        else
 -            seconds -= YEAR_SECONDS;
 -
 -        year++;
 -    }
 -
 -    if(is_leapyear(year))
 -        days_in_month[1] = 29;
 -    else
 -    {
 -        days_in_month[1] = 28;
 -        if(seconds>YEAR_SECONDS)
 -        {
 -            year++;
 -            seconds -= YEAR_SECONDS;
 -        }
 -    }
 -    tm->tm_year = year % 100 + 100;
 -
 -    /* Month */
 -    for(int i = 0; i < 12; i++)
 -    {
 -        if(seconds < days_in_month[i] * DAY_SECONDS)
 -        {
 -            tm->tm_mon = i;
 -            break;
 -        }
 -
 -        seconds -= days_in_month[i] * DAY_SECONDS;
 -    }
 -
 -    /* Month Day */
 -    int mday = seconds / DAY_SECONDS;
 -    seconds -= mday * DAY_SECONDS;
 -    tm->tm_mday = mday + 1; /* 1 ... 31 */
 -
 -    /* Hour */
 -    int hour = seconds / HOUR_SECONDS;
 -    seconds -= hour*HOUR_SECONDS;
 -    tm->tm_hour = hour;
 -
 -    /* Minute */
 -    int min = seconds / MINUTE_SECONDS;
 -    seconds -= min*MINUTE_SECONDS;
 -    tm->tm_min = min;
 -
 -    /* Second */
 -    tm->tm_sec = seconds;
 +    gmtime_r(&seconds, tm);
 
      return 0;
  }
 
  int rtc_write_datetime(const struct tm *tm)
  {
 -    int i, year;
 -    unsigned int year_days = 0;
 -    unsigned int month_days = 0;
 -    unsigned int seconds = 0;
 -
 -    year = 2000 + tm->tm_year - 100;
 -
 -    if(is_leapyear(year))
 -        days_in_month[1] = 29;
 -    else
 -        days_in_month[1] = 28;
 -
 -    /* Number of days in months gone by this year*/
 -    for(i = 0; i < tm->tm_mon; i++)
 -        month_days += days_in_month[i];
 -
 -    /* Number of days in years gone by since 1-Jan-1980 */
 -    year_days = 365*(tm->tm_year-100+20) + (tm->tm_year-100-1)/4 + 6;
 -
 -    /* Convert to seconds since 1-Jan-1980 */
 -    seconds = tm->tm_sec
 -            + tm->tm_min*MINUTE_SECONDS
 -            + tm->tm_hour*HOUR_SECONDS
 -            + (tm->tm_mday-1)*DAY_SECONDS
 -            + month_days*DAY_SECONDS
 -            + year_days*DAY_SECONDS;
 -    seconds += SECS_ADJUST;
 +    uint32_t seconds;
 +
 +    seconds = mktime((struct tm *)tm);
 
      #ifdef SANSA_FUZEPLUS
      /* The OF uses PERSISTENT2 register to keep the adjustment and only changes
 @@ -168,8 +67,9 @@ int rtc_write_datetime(const struct tm *tm)
      #else
      /* The Freescale recommended way of keeping time is the number of seconds
       * since 00:00 1/1/1980 */
 -    imx233_rtc_write_seconds(seconds);
 +    imx233_rtc_write_seconds(seconds - YEAR1980);
      #endif
 +
      return 0;
  }