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31 * This file implements the OpenThread platform abstraction for miscellaneous behaviors.
34 #include <openthread/platform/misc.h>
37 #include "platform-efr32.h"
39 static uint32_t sResetCause;
41 void efr32MiscInit(void)
43 // Read the cause of last reset.
44 sResetCause = RMU_ResetCauseGet();
46 // Clear the register, as the causes cumulate over resets.
47 RMU_ResetCauseClear();
50 void otPlatReset(otInstance *aInstance)
52 OT_UNUSED_VARIABLE(aInstance);
56 otPlatResetReason otPlatGetResetReason(otInstance *aInstance)
58 OT_UNUSED_VARIABLE(aInstance);
60 otPlatResetReason reason;
62 if (sResetCause & RMU_RSTCAUSE_PORST)
64 reason = OT_PLAT_RESET_REASON_POWER_ON;
66 else if (sResetCause & RMU_RSTCAUSE_SYSREQRST)
68 reason = OT_PLAT_RESET_REASON_SOFTWARE;
70 else if (sResetCause & RMU_RSTCAUSE_WDOGRST)
72 reason = OT_PLAT_RESET_REASON_WATCHDOG;
74 else if (sResetCause & RMU_RSTCAUSE_EXTRST)
76 reason = OT_PLAT_RESET_REASON_EXTERNAL;
78 else if (sResetCause & RMU_RSTCAUSE_LOCKUPRST)
80 reason = OT_PLAT_RESET_REASON_FAULT;
82 else if ((sResetCause & RMU_RSTCAUSE_AVDDBOD) || (sResetCause & RMU_RSTCAUSE_DECBOD) ||
83 (sResetCause & RMU_RSTCAUSE_DVDDBOD) || (sResetCause & RMU_RSTCAUSE_EM4RST))
85 reason = OT_PLAT_RESET_REASON_ASSERT;
89 reason = OT_PLAT_RESET_REASON_UNKNOWN;
95 void otPlatWakeHost(void)
97 // TODO: implement an operation to wake the host from sleep state.