Add generic function to detzermine reset cuase to rcc manager

stm-firmware/safety/safety-controller.c

@@ -39,6 +39,7 @@
 #include <reflow-controller/safety/safety-memory.h>
 #include <reflow-controller/oven-driver.h>
 #include <helper-macros/helper-macros.h>
+#include <stm-periph/rcc-manager.h>
 
 #define check_flag_persistent(flag) ((flag)->persistency && (flag)->persistency->persistency)
 #define get_flag_weight(flag) ((flag)->weight ? (flag->weight->weight) : SAFETY_FLAG_CONFIG_WEIGHT_NONE)
@@ -513,7 +514,7 @@ void safety_controller_init()
 	safety_adc_init();
 	watchdog_setup(WATCHDOG_PRESCALER);
 
-	if (watchdog_check_reset_source())
+	if (rcc_manager_get_reset_cause(false) & RCC_RESET_SOURCE_IWDG)
 		safety_controller_report_error(ERR_FLAG_WTCHDG_FIRED);
 
 #ifdef DEBUGBUILD

stm-firmware/safety/watchdog.c

@@ -105,16 +105,4 @@ int watchdog_ack(uint32_t magic)
 	return ret;
 }
 
-bool watchdog_check_reset_source(void)
-{
-	bool ret;
-
-	ret = !!(RCC->CSR & RCC_CSR_WDGRSTF);
-
-	if (ret)
-		RCC->CSR |= RCC_CSR_RMVF;
-
-	return ret;
-}
-
 /** @} */