Nyaaori/rockbox
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

as3543 rtc wakeup: fix power off

Browse source 
If we disable the hearbeat source after enabling the watchdog there's no
more lock-up when powering off the dap
Comment out alarm enabling on startup since rockbox disables the alarm anyway

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26247 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2010-05-24 10:06:46 +00:00
parent dda102ed4a
commit eae2464e9a
1 changed files with 8 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
firmware/drivers/rtc/rtc_as3514.c
View file

@ -93,8 +93,6 @@ void rtc_alarm_poweroff(void)
disable_irq();
ascodec_write_pmu(0x1a, 4, 0x0); // In_Cntr : disable hearbeat source
ascodec_write(AS3543_WAKEUP, seconds);
seconds >>= 8;
ascodec_write(AS3543_WAKEUP, seconds);
@ -102,11 +100,15 @@ void rtc_alarm_poweroff(void)
seconds |= 1<<7; /* enable bit */
ascodec_write(AS3543_WAKEUP, seconds);
/* write our watermark : desired time of wake up */
/* write our desired time of wake up to detect power-up from RTC */
ascodec_write(AS3543_WAKEUP, wakeup_h);
ascodec_write(AS3543_WAKEUP, wakeup_m);
ascodec_write(AS3514_SYSTEM, (1<<3) | (1<<0)); // enable hearbeat watchdog
/* enable hearbeat watchdog */
ascodec_write(AS3514_SYSTEM, (1<<3) | (1<<0));
/* In_Cntr : disable hearbeat source */
ascodec_write_pmu(0x1a, 4, ascodec_read_pmu(0x1a, 4) & ~(3<<2));
while(1);
}
@ -128,7 +130,9 @@ bool rtc_check_alarm_started(bool release_alarm)
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
/* subsequent reads give the 16 bytes static SRAM */
wakeup_h = ascodec_read(AS3543_WAKEUP);