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AMSv2 RTC: no need to write to RTC_WAKEUP register

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The wakeup alarm will be disabled when powering off anyway
OF database refresh of µSD now only happens if the wakeup was
explicitely enabled
There still seems to be a freeze problem when powering off (sometimes)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26875 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2010-06-17 05:28:38 +00:00
parent 604b17aa08
commit ba07b2055c
1 changed files with 9 additions and 24 deletions
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33
firmware/drivers/rtc/rtc_as3514.c
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@ -122,36 +122,21 @@ bool rtc_check_alarm_started(bool release_alarm)
{
(void) release_alarm;
/* was it an alarm that triggered power on ? */
bool alarm_start = false;
/* 3 first reads give the 23 bits counter and enable bit */
ascodec_read(AS3543_WAKEUP); /* bits 7:0 */
ascodec_read(AS3543_WAKEUP); /* bits 15:8 */
if(ascodec_read(AS3543_WAKEUP) & (1<<7)) /* enable bit */
{
#if 0 /* we could have a persistent setting for wake-up time */
alarm_enabled = true;
#endif
if(!(ascodec_read(AS3543_WAKEUP) & (1<<7))) /* enable bit */
return false;
/* subsequent reads give the 16 bytes static SRAM */
wakeup_h = ascodec_read(AS3543_WAKEUP);
wakeup_m = ascodec_read(AS3543_WAKEUP);
/* subsequent reads give the 16 bytes static SRAM */
wakeup_h = ascodec_read(AS3543_WAKEUP);
wakeup_m = ascodec_read(AS3543_WAKEUP);
struct tm tm;
rtc_read_datetime(&tm);
struct tm tm;
rtc_read_datetime(&tm);
/* do we wake up at the programmed time, or for another reason ? */
if(wakeup_h == tm.tm_hour && wakeup_m == tm.tm_min)
alarm_start = true;
}
/* disable alarm */
ascodec_write(AS3543_WAKEUP, 0); /* bits 7:0 */
ascodec_write(AS3543_WAKEUP, 0); /* bits 15:8 */
ascodec_write(AS3543_WAKEUP, 0); /* bits 22:16 + enable bit */
return alarm_start;
/* were we powered up at the programmed time ? */
return wakeup_h == tm.tm_hour && wakeup_m == tm.tm_min;
}
bool rtc_check_alarm_flag(void)