diff options
Diffstat (limited to 'os/hal/platforms/STM32/rtc_lld.c')
| -rw-r--r-- | os/hal/platforms/STM32/rtc_lld.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/os/hal/platforms/STM32/rtc_lld.c b/os/hal/platforms/STM32/rtc_lld.c index 4af863005..80f0185ba 100644 --- a/os/hal/platforms/STM32/rtc_lld.c +++ b/os/hal/platforms/STM32/rtc_lld.c @@ -48,6 +48,7 @@ register must be set to 1 (refer to Section 4.4.1: Power control register /* Driver exported variables. */
/*===========================================================================*/
+/** @brief RTC driver identifier.*/
RTCDriver RTCD;
@@ -69,15 +70,21 @@ RTCDriver RTCD; static void rtc_lld_serve_interrupt(RTCDriver *rtcp){
chSysLockFromIsr();
//TODO: do not forget to reset flags manually
- if (RTC->CRL & RTC_CRL_SECF){
+ if ((RTC->CRH & RTC_CRH_SECIE) && \
+ (RTC->CRL & RTC_CRL_SECF) && \
+ (rtcp->config->second_cb != NULL)){
rtcp->config->second_cb(rtcp);
RTC->CRL &= ~RTC_CRL_SECF;
}
- if (RTC->CRL & RTC_CRL_ALRF){
+ if ((RTC->CRH & RTC_CRH_ALRIE) && \
+ (RTC->CRL & RTC_CRL_ALRF) && \
+ (rtcp->config->alarm_cb != NULL)){
rtcp->config->alarm_cb(rtcp);
RTC->CRL &= ~RTC_CRL_ALRF;
}
- if (RTC->CRL & RTC_CRL_OWF){
+ if ((RTC->CRH & RTC_CRH_OWIE) && \
+ (RTC->CRL & RTC_CRL_OWF) && \
+ (rtcp->config->overflow_cb != NULL)){
rtcp->config->overflow_cb(rtcp);
RTC->CRL &= ~RTC_CRL_OWF;
}
@@ -128,6 +135,8 @@ void rtc_lld_init(void){ RTC->CRL &= ~(RTC_CRL_RSF);
while (!(RTC->CRL & RTC_CRL_RSF))
;
+
+ RTCD.config = NULL;
}
/**
@@ -137,23 +146,24 @@ void rtc_lld_init(void){ * @param[in] rtccfgp pointer to a @p RTCDriver config object
*/
#if RTC_SUPPORTS_CALLBACKS
-void rtc_lld_start(RTCDriver *rtcp, RTCConfig *rtccfgp){
- uint16_t flags = 0;
+void rtc_lld_start(RTCDriver *rtcp, const RTCConfig *rtccfgp){
+ uint16_t isr_flags = 0;
NVICEnableVector(RTC_IRQn, CORTEX_PRIORITY_MASK(STM32_RTC_IRQ_PRIORITY));
rtcp->config = rtccfgp;
if (rtcp->config->overflow_cb != NULL){
- flags |= RTC_CRH_OWIE;
+ isr_flags |= RTC_CRH_OWIE;
}
if (rtcp->config->alarm_cb != NULL){
- flags |= RTC_CRH_ALRIE;
+ isr_flags |= RTC_CRH_ALRIE;
}
if (rtcp->config->second_cb != NULL){
- flags |= RTC_CRH_SECIE;
+ isr_flags |= RTC_CRH_SECIE;
}
- RTC->CRH |= flags;
+ RTC->CRL &= ~(RTC_CRL_SECF | RTC_CRL_ALRF | RTC_CRL_OWF); /* clear all even flags*/
+ RTC->CRH |= isr_flags;
}
/**
|