OrgApache/incubator-nuttx
OrgApache
/
incubator-nuttx
mirror of https://github.com/apache/incubator-nuttx.git
1
0
Fork 0
Code Issues Releases Wiki Activity

PM update 

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4932 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2012-07-11 23:21:16 +00:00
parent 55ad295582
commit b6d4f21d53
1 changed files with 48 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
arch/arm/src/stm32/stm32f10xxx_rtc.c
View File

@ -607,6 +607,7 @@ int up_rtc_setalarm(FAR const struct timespec *tp, alarmcb_t callback)
{
struct rtc_regvals_s regvals;
irqstate_t flags;
uint16_t cr;
int ret = -EBUSY;
/* Is there already something waiting on the ALARM? */
@ -621,6 +622,12 @@ int up_rtc_setalarm(FAR const struct timespec *tp, alarmcb_t callback)
up_rtc_breakout(tp, &regvals);
/* Enable RTC alarm */
cr = getreg16(STM32_RTC_CRH);
cr |= RTC_CRH_ALRIE;
putreg16(cr, STM32_RTC_CRH);
/* The set the alarm */
flags = irqsave();
@ -635,3 +642,44 @@ int up_rtc_setalarm(FAR const struct timespec *tp, alarmcb_t callback)
return ret;
}
#endif
/************************************************************************************
* Name: up_rtc_cancelalarm
*
* Description:
* Cancel a pending alarm alarm
*
* Input Parameters:
* none
*
* Returned Value:
* Zero (OK) on success; a negated errno on failure
*
************************************************************************************/
#ifdef CONFIG_RTC_ALARM
int up_rtc_cancelalarm(void)
{
irqstate_t flags;
int ret = -ENODATA;
if (g_alarmcb != NULL)
{
/* Cancel the global callback function */
g_alarmcb = NULL;
/* Unset the alarm */
flags = irqsave();
stm32_rtc_beginwr();
putreg16(0xffff, STM32_RTC_ALRH);
putreg16(0xffff, STM32_RTC_ALRL);
stm32_rtc_endwr();
irqrestore(flags);
ret = OK;
}
return ret;
}
#endif