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cpu/sam0_common: add rtc_tamper_pin_mask()

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This commit is contained in:
Benjamin Valentin 2021-03-16 11:50:05 +01:00 committed by Benjamin Valentin
parent 9d482c4448
commit 13fbb7c1a0
2 changed files with 22 additions and 0 deletions
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12
cpu/sam0_common/include/periph_cpu_common.h
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@ -1153,6 +1153,18 @@ void rtc_tamper_enable(void);
* pin index inside the @ref rtc_tamper_pins array.
*/
uint8_t rtc_get_tamper_event(void);
/**
* @brief Get the tamper event mask for a certain pin.
* Can be used together with @ref rtc_get_tamper_event to
* check which RTC pin caused the tamper event.
*
* @param pin Pin to query
*
* @return Bit mask with the bit corresponding to @p pin set
* 0 if @p pin is no RTC tamper pin
*/
uint8_t rtc_tamper_pin_mask(gpio_t pin);
/** @} */
/**

10
cpu/sam0_common/periph/rtc_rtt.c
View File

@ -394,6 +394,16 @@ uint8_t rtc_get_tamper_event(void)
return ret & RTC_TAMPID_TAMPID_Msk;
}
uint8_t rtc_tamper_pin_mask(gpio_t pin)
{
int idx = _rtc_pin(pin);
if (idx < 0) {
return 0;
}
return 1 << idx;
}
#endif /* RTC_NUM_OF_TAMPERS */
void rtt_set_overflow_cb(rtt_cb_t cb, void *arg)