Miscellaneous#

This module includes platform abstractions for miscellaneous behaviors.

Enumerations#

enum

otPlatResetReason {

OT_PLAT_RESET_REASON_POWER_ON = 0

OT_PLAT_RESET_REASON_EXTERNAL = 1

OT_PLAT_RESET_REASON_SOFTWARE = 2

OT_PLAT_RESET_REASON_FAULT = 3

OT_PLAT_RESET_REASON_CRASH = 4

OT_PLAT_RESET_REASON_ASSERT = 5

OT_PLAT_RESET_REASON_OTHER = 6

OT_PLAT_RESET_REASON_UNKNOWN = 7

OT_PLAT_RESET_REASON_WATCHDOG = 8

OT_PLAT_RESET_REASON_COUNT

}

Enumeration of possible reset reason codes.

enum

otPlatMcuPowerState {

OT_PLAT_MCU_POWER_STATE_ON = 0

OT_PLAT_MCU_POWER_STATE_LOW_POWER = 1

OT_PLAT_MCU_POWER_STATE_OFF = 2

}

Enumeration of micro-controller's power states.

Functions#

void

otPlatReset(otInstance *aInstance)

This function performs a software reset on the platform, if supported.

otPlatResetReason

otPlatGetResetReason(otInstance *aInstance)

This function returns the reason for the last platform reset.

void

otPlatAssertFail(const char *aFilename, int aLineNumber)

This function provides a platform specific implementation for assert.

void

otPlatWakeHost(void)

This function performs a platform specific operation to wake the host MCU.

otError

otPlatSetMcuPowerState(otInstance *aInstance, otPlatMcuPowerState aState)

This function sets the desired MCU power state.

otPlatMcuPowerState

otPlatGetMcuPowerState(otInstance *aInstance)

This function gets the current desired MCU power state.

Enumeration Documentation#

otPlatResetReason#

otPlatResetReason

Enumeration of possible reset reason codes.

These are in the same order as the Spinel reset reason codes.

Enumerator
OT_PLAT_RESET_REASON_POWER_ON
OT_PLAT_RESET_REASON_EXTERNAL
OT_PLAT_RESET_REASON_SOFTWARE
OT_PLAT_RESET_REASON_FAULT
OT_PLAT_RESET_REASON_CRASH
OT_PLAT_RESET_REASON_ASSERT
OT_PLAT_RESET_REASON_OTHER
OT_PLAT_RESET_REASON_UNKNOWN
OT_PLAT_RESET_REASON_WATCHDOG
OT_PLAT_RESET_REASON_COUNT

otPlatMcuPowerState#

otPlatMcuPowerState

Enumeration of micro-controller's power states.

These values are used for NCP configuration when OPENTHREAD_CONFIG_NCP_ENABLE_MCU_POWER_STATE_CONTROL is enabled.

The power state specifies the desired power state of NCP's micro-controller (MCU) when the underlying platform's operating system enters idle mode (i.e., all active tasks/events are processed and the MCU can potentially enter a energy-saving power state).

The power state primarily determines how the host should interact with the NCP and whether the host needs an external trigger (a "poke") to NCP before it can communicate with the NCP or not.

After a reset, the MCU power state MUST be OT_PLAT_POWER_STATE_ON.

Enumerator
OT_PLAT_MCU_POWER_STATE_ON	NCP's MCU stays on and active all the time.
OT_PLAT_MCU_POWER_STATE_LOW_POWER	NCP's MCU can enter low-power (energy-saving) state.
OT_PLAT_MCU_POWER_STATE_OFF	NCP is fully off.

Function Documentation#

otPlatReset#

void otPlatReset (otInstance * aInstance)

This function performs a software reset on the platform, if supported.

Parameters

Type	Direction	Argument Name	Description
otInstance *	[in]	aInstance	The OpenThread instance structure.

otPlatGetResetReason#

otPlatResetReason otPlatGetResetReason (otInstance * aInstance)

This function returns the reason for the last platform reset.

Parameters

Type	Direction	Argument Name	Description
otInstance *	[in]	aInstance	The OpenThread instance structure.

otPlatAssertFail#

void otPlatAssertFail (const char * aFilename, int aLineNumber)

This function provides a platform specific implementation for assert.

Parameters

Type	Direction	Argument Name	Description
const char *	[in]	aFilename	The name of the file where the assert occurred.
int	[in]	aLineNumber	The line number in the file where the assert occurred.

otPlatWakeHost#

void otPlatWakeHost (void )

This function performs a platform specific operation to wake the host MCU.

Parameters

Type	Direction	Argument Name	Description
void	N/A

This is used only for NCP configurations.

otPlatSetMcuPowerState#

otError otPlatSetMcuPowerState (otInstance * aInstance, otPlatMcuPowerState aState)

This function sets the desired MCU power state.

Parameters

Type	Direction	Argument Name	Description
otInstance *	[in]	aInstance	A pointer to OpenThread instance.
otPlatMcuPowerState	[in]	aState	The new MCU power state.

This is only applicable and used for NCP configuration when OPENTHREAD_CONFIG_NCP_ENABLE_MCU_POWER_STATE_CONTROL is enabled.

otPlatGetMcuPowerState#

otPlatMcuPowerState otPlatGetMcuPowerState (otInstance * aInstance)

This function gets the current desired MCU power state.

Parameters

Type	Direction	Argument Name	Description
otInstance *	[in]	aInstance	A pointer to OpenThread instance.

This is only applicable and used for NCP configuration when OPENTHREAD_CONFIG_NCP_ENABLE_MCU_POWER_STATE_CONTROL is enabled.

After a reset, the power state MUST return OT_PLAT_POWER_STATE_ON. During operation, power state SHOULD only change through an explicit successful call to otPlatSetMcuPowerState().

Returns

The current power state.