This module includes functions that control link-layer configuration.

Classes
struct	otThreadLinkInfo
	This structure represents link-specific information for messages received from the Thread radio.

struct	otMacFilterEntry
	This structure represents a Mac Filter entry.

struct	otMacCounters
	This structure represents the MAC layer counters.

struct	otActiveScanResult
	This structure represents a received IEEE 802.15.4 Beacon.

struct	otEnergyScanResult
	This structure represents an energy scan result.

Macros
#define	OT_MAC_FILTER_FIXED_RSS_DISABLED 127
	Used to indicate no fixed received signal strength was set.

#define	OT_MAC_FILTER_ITERATOR_INIT 0
	Initializer for otMacFilterIterator.

Typedefs
typedef struct otThreadLinkInfo	otThreadLinkInfo
	This structure represents link-specific information for messages received from the Thread radio.

typedef uint8_t	otMacFilterIterator
	Used to iterate through mac filter entries.

typedef enum otMacFilterAddressMode	otMacFilterAddressMode
	Defines address mode of the mac filter.

typedef struct otMacFilterEntry	otMacFilterEntry
	This structure represents a Mac Filter entry.

typedef struct otMacCounters	otMacCounters
	This structure represents the MAC layer counters.

typedef struct otActiveScanResult	otActiveScanResult
	This structure represents a received IEEE 802.15.4 Beacon.

typedef struct otEnergyScanResult	otEnergyScanResult
	This structure represents an energy scan result.

typedef void(*	otHandleActiveScanResult ) ( otActiveScanResult aResult, void aContext)
	This function pointer is called during an IEEE 802.15.4 Active Scan when an IEEE 802.15.4 Beacon is received or the scan completes.

typedef void(*	otHandleEnergyScanResult ) ( otEnergyScanResult aResult, void aContext)
	This function pointer is called during an IEEE 802.15.4 Energy Scan when the result for a channel is ready or the scan completes.

typedef void(*	otLinkPcapCallback ) (const otRadioFrame aFrame, bool aIsTx, void aContext)
	This function pointer is called when an IEEE 802.15.4 frame is received.

Enumerations
enum	otMacFilterAddressMode { OT_MAC_FILTER_ADDRESS_MODE_DISABLED , OT_MAC_FILTER_ADDRESS_MODE_WHITELIST , OT_MAC_FILTER_ADDRESS_MODE_BLACKLIST }
	Defines address mode of the mac filter.

Functions
otError	otLinkActiveScan ( otInstance aInstance, uint32_t aScanChannels, uint16_t aScanDuration, otHandleActiveScanResult aCallback, void aCallbackContext)
	This function starts an IEEE 802.15.4 Active Scan.

bool	otLinkIsActiveScanInProgress ( otInstance *aInstance)
	This function indicates whether or not an IEEE 802.15.4 Active Scan is currently in progress.

otError	otLinkEnergyScan ( otInstance aInstance, uint32_t aScanChannels, uint16_t aScanDuration, otHandleEnergyScanResult aCallback, void aCallbackContext)
	This function starts an IEEE 802.15.4 Energy Scan.

bool	otLinkIsEnergyScanInProgress ( otInstance *aInstance)
	This function indicates whether or not an IEEE 802.15.4 Energy Scan is currently in progress.

otError	otLinkSendDataRequest ( otInstance *aInstance)
	This function enqueues an IEEE 802.15.4 Data Request message for transmission.

bool	otLinkIsInTransmitState ( otInstance *aInstance)
	This function indicates whether or not an IEEE 802.15.4 MAC is in the transmit state.

otError	otLinkOutOfBandTransmitRequest ( otInstance aInstance, otRadioFrame aOobFrame)
	This function enqueues an IEEE 802.15.4 out of band Frame for transmission.

uint8_t	otLinkGetChannel ( otInstance *aInstance)
	Get the IEEE 802.15.4 channel.

otError	otLinkSetChannel ( otInstance *aInstance, uint8_t aChannel)
	Set the IEEE 802.15.4 channel.

uint32_t	otLinkGetSupportedChannelMask ( otInstance *aInstance)
	Get the supported channel mask of MAC layer.

otError	otLinkSetSupportedChannelMask ( otInstance *aInstance, uint32_t aChannelMask)
	Set the supported channel mask of MAC layer.

const otExtAddress *	otLinkGetExtendedAddress ( otInstance *aInstance)
	Get the IEEE 802.15.4 Extended Address.

otError	otLinkSetExtendedAddress ( otInstance aInstance, const otExtAddress aExtAddress)
	This function sets the IEEE 802.15.4 Extended Address.

void	otLinkGetFactoryAssignedIeeeEui64 ( otInstance aInstance, otExtAddress aEui64)
	Get the factory-assigned IEEE EUI-64.

otPanId	otLinkGetPanId ( otInstance *aInstance)
	Get the IEEE 802.15.4 PAN ID.

otError	otLinkSetPanId ( otInstance *aInstance, otPanId aPanId)
	Set the IEEE 802.15.4 PAN ID.

uint32_t	otLinkGetPollPeriod ( otInstance *aInstance)
	Get the data poll period of sleepy end device.

otError	otLinkSetPollPeriod ( otInstance *aInstance, uint32_t aPollPeriod)
	Set/clear user-specified/external data poll period for sleepy end device.

otShortAddress	otLinkGetShortAddress ( otInstance *aInstance)
	Get the IEEE 802.15.4 Short Address.

uint8_t	otLinkGetMaxFrameRetriesDirect ( otInstance *aInstance)
	This method returns the maximum number of frame retries during direct transmission.

void	otLinkSetMaxFrameRetriesDirect ( otInstance *aInstance, uint8_t aMaxFrameRetriesDirect)
	This method sets the maximum number of frame retries during direct transmission.

uint8_t	otLinkGetMaxFrameRetriesIndirect ( otInstance *aInstance)
	This method returns the maximum number of frame retries during indirect transmission.

void	otLinkSetMaxFrameRetriesIndirect ( otInstance *aInstance, uint8_t aMaxFrameRetriesIndirect)
	This method sets the maximum number of frame retries during indirect transmission.

otMacFilterAddressMode	otLinkFilterGetAddressMode ( otInstance *aInstance)
	This function gets the address mode of MAC filter.

otError	otLinkFilterSetAddressMode ( otInstance *aInstance, otMacFilterAddressMode aMode)
	This function sets the address mode of MAC filter.

otError	otLinkFilterAddAddress ( otInstance aInstance, const otExtAddress aExtAddress)
	This method adds an Extended Address to MAC filter.

otError	otLinkFilterRemoveAddress ( otInstance aInstance, const otExtAddress aExtAddress)
	This method removes an Extended Address from MAC filter.

void	otLinkFilterClearAddresses ( otInstance *aInstance)
	This method clears all the Extended Addresses from MAC filter.

otError	otLinkFilterGetNextAddress ( otInstance aInstance, otMacFilterIterator aIterator, otMacFilterEntry *aEntry)
	This method gets an in-use address filter entry.

otError	otLinkFilterAddRssIn ( otInstance aInstance, const otExtAddress aExtAddress, int8_t aRss)
	This method sets the received signal strength (in dBm) for the messages from the Extended Address.

otError	otLinkFilterRemoveRssIn ( otInstance aInstance, const otExtAddress aExtAddress)
	This method removes the received signal strength setting for the received messages from the Extended Address or removes the default received signal strength setting if no Extended Address is specified.

void	otLinkFilterClearRssIn ( otInstance *aInstance)
	This method clears all the received signal strength settings.

otError	otLinkFilterGetNextRssIn ( otInstance aInstance, otMacFilterIterator aIterator, otMacFilterEntry *aEntry)
	This method gets an in-use RssIn filter entry.

uint8_t	otLinkConvertRssToLinkQuality ( otInstance *aInstance, int8_t aRss)
	This method converts received signal strength to link quality.

int8_t	otLinkConvertLinkQualityToRss ( otInstance *aInstance, uint8_t aLinkQuality)
	This method converts link quality to typical received signal strength.

const uint32_t *	otLinkGetTxDirectRetrySuccessHistogram ( otInstance aInstance, uint8_t aNumberOfEntries)
	This method gets histogram of retries for a single direct packet until success.

const uint32_t *	otLinkGetTxIndirectRetrySuccessHistogram ( otInstance aInstance, uint8_t aNumberOfEntries)
	This method gets histogram of retries for a single indirect packet until success.

void	otLinkResetTxRetrySuccessHistogram ( otInstance *aInstance)
	This method clears histogram statistics for direct and indirect transmissions.

const otMacCounters *	otLinkGetCounters ( otInstance *aInstance)
	Get the MAC layer counters.

void	otLinkResetCounters ( otInstance *aInstance)
	Reset the MAC layer counters.

void	otLinkSetPcapCallback ( otInstance aInstance, otLinkPcapCallback aPcapCallback, void aCallbackContext)
	This function registers a callback to provide received raw IEEE 802.15.4 frames.

bool	otLinkIsPromiscuous ( otInstance *aInstance)
	This function indicates whether or not promiscuous mode is enabled at the link layer.

otError	otLinkSetPromiscuous ( otInstance *aInstance, bool aPromiscuous)
	This function enables or disables the link layer promiscuous mode.

uint16_t	otLinkGetCcaFailureRate ( otInstance *aInstance)
	This function returns the current CCA (Clear Channel Assessment) failure rate.

otError	otLinkSetEnabled ( otInstance *aInstance, bool aEnable)
	This function enables or disables the link layer.

bool	otLinkIsEnabled ( otInstance *aInstance)
	This function indicates whether or not the link layer is enabled.

Detailed Description

This module includes functions that control link-layer configuration.

Macro Definition Documentation

◆ OT_MAC_FILTER_FIXED_RSS_DISABLED

#define OT_MAC_FILTER_FIXED_RSS_DISABLED 127

Used to indicate no fixed received signal strength was set.

Typedef Documentation

◆ otHandleActiveScanResult

typedef void(* otHandleActiveScanResult) ( otActiveScanResult *aResult, void *aContext)

This function pointer is called during an IEEE 802.15.4 Active Scan when an IEEE 802.15.4 Beacon is received or the scan completes.

Parameters

[in]	`aResult`	A valid pointer to the beacon information or NULL when the active scan completes.
[in]	`aContext`	A pointer to application-specific context.

◆ otHandleEnergyScanResult

typedef void(* otHandleEnergyScanResult) ( otEnergyScanResult *aResult, void *aContext)

This function pointer is called during an IEEE 802.15.4 Energy Scan when the result for a channel is ready or the scan completes.

Parameters

[in]	`aResult`	A valid pointer to the energy scan result information or NULL when the energy scan completes.
[in]	`aContext`	A pointer to application-specific context.

◆ otLinkPcapCallback

typedef void(* otLinkPcapCallback) (const otRadioFrame *aFrame, bool aIsTx, void *aContext)

This function pointer is called when an IEEE 802.15.4 frame is received.

Note: This callback is called after FCS processing and aFrame may not contain the actual FCS that was received.; This callback is called before IEEE 802.15.4 security processing.

Parameters

[in]	`aFrame`	A pointer to the received IEEE 802.15.4 frame.
[in]	`aIsTx`	Whether this frame is transmitted, not received.
[in]	`aContext`	A pointer to application-specific context.

Enumeration Type Documentation

◆ otMacFilterAddressMode

enum otMacFilterAddressMode

Defines address mode of the mac filter.

Enumerator
OT_MAC_FILTER_ADDRESS_MODE_DISABLED	Address filter is disabled.
OT_MAC_FILTER_ADDRESS_MODE_WHITELIST	Whitelist address filter mode is enabled.
OT_MAC_FILTER_ADDRESS_MODE_BLACKLIST	Blacklist address filter mode is enabled.

Function Documentation

◆ otLinkActiveScan()

otError otLinkActiveScan	(	otInstance *	`aInstance,`
		uint32_t	`aScanChannels,`
		uint16_t	`aScanDuration,`
		otHandleActiveScanResult	`aCallback,`
		void *	`aCallbackContext`
	)

This function starts an IEEE 802.15.4 Active Scan.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aScanChannels`	A bit vector indicating which channels to scan (e.g. OT_CHANNEL_11_MASK).
[in]	`aScanDuration`	The time in milliseconds to spend scanning each channel.
[in]	`aCallback`	A pointer to a function called on receiving a beacon or scan completes.
[in]	`aCallbackContext`	A pointer to application-specific context.

Return values

`OT_ERROR_NONE`	Accepted the Active Scan request.
`OT_ERROR_BUSY`	Already performing an Active Scan.

◆ otLinkConvertLinkQualityToRss()

int8_t otLinkConvertLinkQualityToRss	(	otInstance *	`aInstance,`
		uint8_t	`aLinkQuality`
	)

This method converts link quality to typical received signal strength.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aLinkQuality`	LinkQuality value, should be in range [0,3].

Returns: Typical platform received signal strength mapping to aLinkQuality .

◆ otLinkConvertRssToLinkQuality()

uint8_t otLinkConvertRssToLinkQuality	(	otInstance *	`aInstance,`
		int8_t	`aRss`
	)

This method converts received signal strength to link quality.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aRss`	The received signal strength value to be converted.

Returns: Link quality value mapping to aRss .

◆ otLinkEnergyScan()

otError otLinkEnergyScan	(	otInstance *	`aInstance,`
		uint32_t	`aScanChannels,`
		uint16_t	`aScanDuration,`
		otHandleEnergyScanResult	`aCallback,`
		void *	`aCallbackContext`
	)

This function starts an IEEE 802.15.4 Energy Scan.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aScanChannels`	A bit vector indicating on which channels to perform energy scan.
[in]	`aScanDuration`	The time in milliseconds to spend scanning each channel.
[in]	`aCallback`	A pointer to a function called to pass on scan result on indicate scan completion.
[in]	`aCallbackContext`	A pointer to application-specific context.

Return values

`OT_ERROR_NONE`	Accepted the Energy Scan request.
`OT_ERROR_BUSY`	Could not start the energy scan.

◆ otLinkFilterAddAddress()

otError otLinkFilterAddAddress	(	otInstance *	`aInstance,`
		const otExtAddress *	`aExtAddress`
	)

This method adds an Extended Address to MAC filter.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aExtAddress`	A reference to the Extended Address.

Return values

`OT_ERROR_NONE`	Successfully added `aExtAddress` to MAC filter.
`OT_ERROR_ALREADY`	If `aExtAddress` was already in MAC filter.
`OT_ERROR_INVALID_ARGS`	If `aExtAddress` is NULL.
`OT_ERROR_NO_BUFS`	No available entry exists.

See also: otLinkFilterGetAddressMode; otLinkFilterSetAddressMode; otLinkFilterRemoveAddress; otLinkFilterClearAddresses; otLinkFilterGetNextAddress; otLinkFilterAddRssIn; otLinkFilterRemoveRssIn; otLinkFilterClearRssIn; otLinkFilterGetNextRssIn

◆ otLinkFilterAddRssIn()

otError otLinkFilterAddRssIn	(	otInstance *	`aInstance,`
		const otExtAddress *	`aExtAddress,`
		int8_t	`aRss`
	)

This method sets the received signal strength (in dBm) for the messages from the Extended Address.

The default received signal strength for all received messages would be set if no Extended Address is specified.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aExtAddress`	A pointer to the IEEE 802.15.4 Extended Address, or NULL to set the default received signal strength.
[in]	`aRss`	The received signal strength (in dBm) to set.

Return values

`OT_ERROR_NONE`	Successfully set `aRss` for `aExtAddress` or set the default `aRss` for all received messages if `aExtAddress` is NULL.
`OT_ERROR_NO_BUFS`	No available entry exists.

See also: otLinkFilterGetAddressMode; otLinkFilterSetAddressMode; otLinkFilterAddAddress; otLinkFilterRemoveAddress; otLinkFilterClearAddresses; otLinkFilterGetNextAddress; otLinkFilterRemoveRssIn; otLinkFilterClearRssIn; otLinkFilterGetNextRssIn

◆ otLinkFilterClearAddresses()

void otLinkFilterClearAddresses ( otInstance * aInstance )

This method clears all the Extended Addresses from MAC filter.

Parameters

[in] aInstance A pointer to an OpenThread instance.

See also: otLinkFilterGetAddressMode; otLinkFilterSetAddressMode; otLinkFilterAddAddress; otLinkFilterRemoveAddress; otLinkFilterGetNextAddress; otLinkFilterAddRssIn; otLinkFilterRemoveRssIn; otLinkFilterClearRssIn; otLinkFilterGetNextRssIn

◆ otLinkFilterClearRssIn()

void otLinkFilterClearRssIn ( otInstance * aInstance )

This method clears all the received signal strength settings.

Parameters

[in] aInstance A pointer to an OpenThread instance.

See also: otLinkFilterGetAddressMode; otLinkFilterSetAddressMode; otLinkFilterAddAddress; otLinkFilterRemoveAddress; otLinkFilterClearAddresses; otLinkFilterGetNextAddress; otLinkFilterAddRssIn; otLinkFilterRemoveRssIn; otLinkFilterGetNextRssIn

◆ otLinkFilterGetAddressMode()

otMacFilterAddressMode otLinkFilterGetAddressMode ( otInstance * aInstance )

This function gets the address mode of MAC filter.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Returns: the address mode.

See also: otLinkFilterSetAddressMode; otLinkFilterAddAddress; otLinkFilterRemoveAddress; otLinkFilterClearAddresses; otLinkFilterGetNextAddress; otLinkFilterAddRssIn; otLinkFilterRemoveRssIn; otLinkFilterClearRssIn; otLinkFilterGetNextRssIn

◆ otLinkFilterGetNextAddress()

otError otLinkFilterGetNextAddress	(	otInstance *	`aInstance,`
		otMacFilterIterator *	`aIterator,`
		otMacFilterEntry *	`aEntry`
	)

This method gets an in-use address filter entry.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in,out]	`aIterator`	A pointer to the MAC filter iterator context. To get the first in-use address filter entry, it should be set to OT_MAC_FILTER_ITERATOR_INIT.
[out]	`aEntry`	A pointer to where the information is placed.

Return values

`OT_ERROR_NONE`	Successfully retrieved an in-use address filter entry.
`OT_ERROR_INVALID_ARGS`	If `aIterator` or `aEntry` is NULL.
`OT_ERROR_NOT_FOUND`	No subsequent entry exists.

See also: otLinkFilterGetAddressMode; otLinkFilterSetAddressMode; otLinkFilterAddAddress; otLinkFilterRemoveAddress; otLinkFilterClearAddresses; otLinkFilterAddRssIn; otLinkFilterRemoveRssIn; otLinkFilterClearRssIn; otLinkFilterGetNextRssIn

◆ otLinkFilterGetNextRssIn()

otError otLinkFilterGetNextRssIn	(	otInstance *	`aInstance,`
		otMacFilterIterator *	`aIterator,`
		otMacFilterEntry *	`aEntry`
	)

This method gets an in-use RssIn filter entry.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in,out]	`aIterator`	A reference to the MAC filter iterator context. To get the first in-use RssIn Filter entry, it should be set to OT_MAC_FILTER_ITERATOR_INIT.
[out]	`aEntry`	A reference to where the information is placed. The last entry would have the extended address as all 0xff to indicate the default received signal strength if it was set.

Return values

`OT_ERROR_NONE`	Successfully retrieved an in-use RssIn Filter entry.
`OT_ERROR_INVALID_ARGS`	If `aIterator` or `aEntry` is NULL.
`OT_ERROR_NOT_FOUND`	No subsequent entry exists.

See also: otLinkFilterGetAddressMode; otLinkFilterSetAddressMode; otLinkFilterAddAddress; otLinkFilterRemoveAddress; otLinkFilterClearAddresses; otLinkFilterGetNextAddress; otLinkFilterAddRssIn; otLinkFilterRemoveRssIn; otLinkFilterClearRssIn

◆ otLinkFilterRemoveAddress()

otError otLinkFilterRemoveAddress	(	otInstance *	`aInstance,`
		const otExtAddress *	`aExtAddress`
	)

This method removes an Extended Address from MAC filter.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aExtAddress`	A reference to the Extended Address.

Return values

`OT_ERROR_NONE`	Successfully removed `aExtAddress` from MAC filter.
`OT_ERROR_INVALID_ARGS`	If `aExtAddress` is NULL.
`OT_ERROR_NOT_FOUND`	`aExtAddress` is not in MAC filter.

See also: otLinkFilterGetAddressMode; otLinkFilterSetAddressMode; otLinkFilterAddAddress; otLinkFilterClearAddresses; otLinkFilterGetNextAddress; otLinkFilterAddRssIn; otLinkFilterRemoveRssIn; otLinkFilterClearRssIn; otLinkFilterGetNextRssIn

◆ otLinkFilterRemoveRssIn()

otError otLinkFilterRemoveRssIn	(	otInstance *	`aInstance,`
		const otExtAddress *	`aExtAddress`
	)

This method removes the received signal strength setting for the received messages from the Extended Address or removes the default received signal strength setting if no Extended Address is specified.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aExtAddress`	A pointer to the IEEE 802.15.4 Extended Address, or NULL to reset the default received signal strength.

Return values

`OT_ERROR_NONE`	Successfully removed received signal strength setting for `aExtAddress` or removed the default received signal strength setting if `aExtAddress` is NULL.
`OT_ERROR_NOT_FOUND`	`aExtAddress` is not in MAC filter if it is not NULL.

See also: otLinkFilterGetAddressMode; otLinkFilterSetAddressMode; otLinkFilterAddAddress; otLinkFilterRemoveAddress; otLinkFilterClearAddresses; otLinkFilterGetNextAddress; otLinkFilterAddRssIn; otLinkFilterClearRssIn; otLinkFilterGetNextRssIn

◆ otLinkFilterSetAddressMode()

otError otLinkFilterSetAddressMode	(	otInstance *	`aInstance,`
		otMacFilterAddressMode	`aMode`
	)

This function sets the address mode of MAC filter.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aMode`	The address mode to set.

Return values

`OT_ERROR_NONE`	Successfully set the address mode.
`OT_ERROR_INVALID_ARGS`	`aMode` is not valid.

See also: otLinkFilterGetAddressMode; otLinkFilterAddAddress; otLinkFilterRemoveAddress; otLinkFilterClearAddresses; otLinkFilterGetNextAddress; otLinkFilterAddRssIn; otLinkFilterRemoveRssIn; otLinkFilterClearRssIn; otLinkFilterGetNextRssIn

◆ otLinkGetCcaFailureRate()

uint16_t otLinkGetCcaFailureRate ( otInstance * aInstance )

This function returns the current CCA (Clear Channel Assessment) failure rate.

The rate is maintained over a window of (roughly) last OPENTHREAD_CONFIG_CCA_FAILURE_RATE_AVERAGING_WINDOW frame transmissions.

Returns: The CCA failure rate with maximum value 0xffff corresponding to 100% failure rate.

◆ otLinkGetChannel()

uint8_t otLinkGetChannel ( otInstance * aInstance )

Get the IEEE 802.15.4 channel.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Returns: The IEEE 802.15.4 channel.

See also: otLinkSetChannel

◆ otLinkGetCounters()

const otMacCounters * otLinkGetCounters ( otInstance * aInstance )

Get the MAC layer counters.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Returns: A pointer to the MAC layer counters.

◆ otLinkGetExtendedAddress()

const otExtAddress * otLinkGetExtendedAddress ( otInstance * aInstance )

Get the IEEE 802.15.4 Extended Address.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Returns: A pointer to the IEEE 802.15.4 Extended Address.

◆ otLinkGetFactoryAssignedIeeeEui64()

void otLinkGetFactoryAssignedIeeeEui64	(	otInstance *	`aInstance,`
		otExtAddress *	`aEui64`
	)

Get the factory-assigned IEEE EUI-64.

Parameters

[in]	`aInstance`	A pointer to the OpenThread instance.
[out]	`aEui64`	A pointer to where the factory-assigned IEEE EUI-64 is placed.

◆ otLinkGetMaxFrameRetriesDirect()

uint8_t otLinkGetMaxFrameRetriesDirect ( otInstance * aInstance )

This method returns the maximum number of frame retries during direct transmission.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Returns: The maximum number of retries during direct transmission.

◆ otLinkGetMaxFrameRetriesIndirect()

uint8_t otLinkGetMaxFrameRetriesIndirect ( otInstance * aInstance )

This method returns the maximum number of frame retries during indirect transmission.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Returns: The maximum number of retries during indirect transmission.

◆ otLinkGetPanId()

otPanId otLinkGetPanId ( otInstance * aInstance )

Get the IEEE 802.15.4 PAN ID.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Returns: The IEEE 802.15.4 PAN ID.

See also: otLinkSetPanId

◆ otLinkGetPollPeriod()

uint32_t otLinkGetPollPeriod ( otInstance * aInstance )

Get the data poll period of sleepy end device.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Returns: The data poll period of sleepy end device in milliseconds.

See also: otLinkSetPollPeriod

◆ otLinkGetShortAddress()

otShortAddress otLinkGetShortAddress ( otInstance * aInstance )

Get the IEEE 802.15.4 Short Address.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Returns: A pointer to the IEEE 802.15.4 Short Address.

◆ otLinkGetSupportedChannelMask()

uint32_t otLinkGetSupportedChannelMask ( otInstance * aInstance )

Get the supported channel mask of MAC layer.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Returns: The supported channel mask as uint32_t with bit 0 (lsb) mapping to channel 0, bit 1 to channel 1, so on.

◆ otLinkGetTxDirectRetrySuccessHistogram()

const uint32_t* otLinkGetTxDirectRetrySuccessHistogram	(	otInstance *	`aInstance,`
		uint8_t *	`aNumberOfEntries`
	)

This method gets histogram of retries for a single direct packet until success.

This function is valid when OPENTHREAD_CONFIG_MAC_RETRY_SUCCESS_HISTOGRAM_ENABLE configuration is enabled.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[out]	`aNumberOfEntries`	A pointer to where the size of returned histogram array is placed.

Returns: A pointer to the histogram of retries (in a form of an array). The n-th element indicates that the packet has been sent with n-th retry.

◆ otLinkGetTxIndirectRetrySuccessHistogram()

const uint32_t* otLinkGetTxIndirectRetrySuccessHistogram	(	otInstance *	`aInstance,`
		uint8_t *	`aNumberOfEntries`
	)

This method gets histogram of retries for a single indirect packet until success.

This function is valid when OPENTHREAD_CONFIG_MAC_RETRY_SUCCESS_HISTOGRAM_ENABLE configuration is enabled.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[out]	`aNumberOfEntries`	A pointer to where the size of returned histogram array is placed.

Returns: A pointer to the histogram of retries (in a form of an array). The n-th element indicates that the packet has been sent with n-th retry.

◆ otLinkIsActiveScanInProgress()

bool otLinkIsActiveScanInProgress ( otInstance * aInstance )

This function indicates whether or not an IEEE 802.15.4 Active Scan is currently in progress.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Returns: true if an IEEE 802.15.4 Active Scan is in progress, false otherwise.

◆ otLinkIsEnabled()

bool otLinkIsEnabled ( otInstance * aInstance )

This function indicates whether or not the link layer is enabled.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Return values

`true`	Link layer is enabled.
`false`	Link layer is not enabled.

◆ otLinkIsEnergyScanInProgress()

bool otLinkIsEnergyScanInProgress ( otInstance * aInstance )

This function indicates whether or not an IEEE 802.15.4 Energy Scan is currently in progress.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Returns: true if an IEEE 802.15.4 Energy Scan is in progress, false otherwise.

◆ otLinkIsInTransmitState()

bool otLinkIsInTransmitState ( otInstance * aInstance )

This function indicates whether or not an IEEE 802.15.4 MAC is in the transmit state.

MAC module is in the transmit state during CSMA/CA procedure, CCA, Data, Beacon or Data Request frame transmission and receiving an ACK of a transmitted frame. MAC module is not in the transmit state during transmission of an ACK frame or a Beacon Request frame.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Returns: true if an IEEE 802.15.4 MAC is in the transmit state, false otherwise.

◆ otLinkIsPromiscuous()

bool otLinkIsPromiscuous ( otInstance * aInstance )

This function indicates whether or not promiscuous mode is enabled at the link layer.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Return values

`true`	Promiscuous mode is enabled.
`false`	Promiscuous mode is not enabled.

◆ otLinkOutOfBandTransmitRequest()

otError otLinkOutOfBandTransmitRequest	(	otInstance *	`aInstance,`
		otRadioFrame *	`aOobFrame`
	)

This function enqueues an IEEE 802.15.4 out of band Frame for transmission.

An Out of Band frame is one that was generated outside of OpenThread.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aOobFrame`	A pointer to the frame to transmit.

Return values

`OT_ERROR_NONE`	Successfully scheduled the frame transmission.
`OT_ERROR_ALREADY`	MAC layer is busy sending a previously requested frame.
`OT_ERROR_INVALID_STATE`	The MAC layer is not enabled.
`OT_ERROR_INVALID_ARGS`	The argument `aOobFrame` is NULL.

◆ otLinkResetCounters()

void otLinkResetCounters ( otInstance * aInstance )

Reset the MAC layer counters.

Parameters

[in] aInstance A pointer to an OpenThread instance.

◆ otLinkResetTxRetrySuccessHistogram()

void otLinkResetTxRetrySuccessHistogram ( otInstance * aInstance )

This method clears histogram statistics for direct and indirect transmissions.

This function is valid when OPENTHREAD_CONFIG_MAC_RETRY_SUCCESS_HISTOGRAM_ENABLE configuration is enabled.

Parameters

[in] aInstance A pointer to an OpenThread instance.

◆ otLinkSendDataRequest()

otError otLinkSendDataRequest ( otInstance * aInstance )

This function enqueues an IEEE 802.15.4 Data Request message for transmission.

Parameters

[in] aInstance A pointer to an OpenThread instance.

Return values

`OT_ERROR_NONE`	Successfully enqueued an IEEE 802.15.4 Data Request message.
`OT_ERROR_ALREADY`	An IEEE 802.15.4 Data Request message is already enqueued.
`OT_ERROR_INVALID_STATE`	Device is not in rx-off-when-idle mode.
`OT_ERROR_NO_BUFS`	Insufficient message buffers available.

◆ otLinkSetChannel()

otError otLinkSetChannel	(	otInstance *	`aInstance,`
		uint8_t	`aChannel`
	)

Set the IEEE 802.15.4 channel.

This function succeeds only when Thread protocols are disabled. A successful call to this function invalidates the Active and Pending Operational Datasets in non-volatile memory.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aChannel`	The IEEE 802.15.4 channel.

Return values

`OT_ERROR_NONE`	Successfully set the channel.
`OT_ERROR_INVALID_ARGS`	If `aChannel` is not in the range [11, 26] or is not in the supported channel mask.
`OT_ERROR_INVALID_STATE`	Thread protocols are enabled.

See also: otLinkGetChannel

◆ otLinkSetEnabled()

otError otLinkSetEnabled	(	otInstance *	`aInstance,`
		bool	`aEnable`
	)

This function enables or disables the link layer.

Note: The link layer may only be enabled / disabled when the Thread Interface is disabled.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aEnable`	true to enable the link layer, or false otherwise.

Return values

`OT_ERROR_NONE`	Successfully enabled / disabled the link layer.
`OT_ERROR_INVALID_STATE`	Could not disable the link layer because the Thread interface is enabled.

◆ otLinkSetExtendedAddress()

otError otLinkSetExtendedAddress	(	otInstance *	`aInstance,`
		const otExtAddress *	`aExtAddress`
	)

This function sets the IEEE 802.15.4 Extended Address.

This function succeeds only when Thread protocols are disabled.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aExtAddress`	A pointer to the IEEE 802.15.4 Extended Address.

Return values

`OT_ERROR_NONE`	Successfully set the IEEE 802.15.4 Extended Address.
`OT_ERROR_INVALID_ARGS`	`aExtAddress` was NULL.
`OT_ERROR_INVALID_STATE`	Thread protocols are enabled.

◆ otLinkSetMaxFrameRetriesDirect()

void otLinkSetMaxFrameRetriesDirect	(	otInstance *	`aInstance,`
		uint8_t	`aMaxFrameRetriesDirect`
	)

This method sets the maximum number of frame retries during direct transmission.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aMaxFrameRetriesDirect`	The maximum number of retries during direct transmission.

◆ otLinkSetMaxFrameRetriesIndirect()

void otLinkSetMaxFrameRetriesIndirect	(	otInstance *	`aInstance,`
		uint8_t	`aMaxFrameRetriesIndirect`
	)

This method sets the maximum number of frame retries during indirect transmission.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aMaxFrameRetriesIndirect`	The maximum number of retries during indirect transmission.

◆ otLinkSetPanId()

otError otLinkSetPanId	(	otInstance *	`aInstance,`
		otPanId	`aPanId`
	)

Set the IEEE 802.15.4 PAN ID.

This function succeeds only when Thread protocols are disabled. A successful call to this function also invalidates the Active and Pending Operational Datasets in non-volatile memory.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aPanId`	The IEEE 802.15.4 PAN ID.

Return values

`OT_ERROR_NONE`	Successfully set the PAN ID.
`OT_ERROR_INVALID_ARGS`	If aPanId is not in the range [0, 65534].
`OT_ERROR_INVALID_STATE`	Thread protocols are enabled.

See also: otLinkGetPanId

◆ otLinkSetPcapCallback()

void otLinkSetPcapCallback	(	otInstance *	`aInstance,`
		otLinkPcapCallback	`aPcapCallback,`
		void *	`aCallbackContext`
	)

This function registers a callback to provide received raw IEEE 802.15.4 frames.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aPcapCallback`	A pointer to a function that is called when receiving an IEEE 802.15.4 link frame or NULL to disable the callback.
[in]	`aCallbackContext`	A pointer to application-specific context.

◆ otLinkSetPollPeriod()

otError otLinkSetPollPeriod	(	otInstance *	`aInstance,`
		uint32_t	`aPollPeriod`
	)

Set/clear user-specified/external data poll period for sleepy end device.

Note: This function updates only poll period of sleepy end device. To update child timeout the function otThreadSetChildTimeout() shall be called.; Minimal non-zero value should be OPENTHREAD_CONFIG_MAC_MINIMUM_POLL_PERIOD (10ms). Or zero to clear user-specified poll period.; User-specified value should be no more than the maximal value 0x3FFFFFF ((1 << 26) - 1) allowed, otherwise it would be clipped by the maximal value.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aPollPeriod`	data poll period in milliseconds.

Return values

`OT_ERROR_NONE`	Successfully set/cleared user-specified poll period.
`OT_ERROR_INVALID_ARGS`	If aPollPeriod is invalid.

See also: otLinkGetPollPeriod

◆ otLinkSetPromiscuous()

otError otLinkSetPromiscuous	(	otInstance *	`aInstance,`
		bool	`aPromiscuous`
	)

This function enables or disables the link layer promiscuous mode.

Note: Promiscuous mode may only be enabled when the Thread interface is disabled.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aPromiscuous`	true to enable promiscuous mode, or false otherwise.

Return values

`OT_ERROR_NONE`	Successfully enabled promiscuous mode.
`OT_ERROR_INVALID_STATE`	Could not enable promiscuous mode because the Thread interface is enabled.

◆ otLinkSetSupportedChannelMask()

otError otLinkSetSupportedChannelMask	(	otInstance *	`aInstance,`
		uint32_t	`aChannelMask`
	)

Set the supported channel mask of MAC layer.

This function succeeds only when Thread protocols are disabled.

Parameters

[in]	`aInstance`	A pointer to an OpenThread instance.
[in]	`aChannelMask`	The supported channel mask (bit 0 or lsb mapping to channel 0, and so on).

Return values

`OT_ERROR_NONE`	Successfully set the supported channel mask.
`OT_ERROR_INVALID_STATE`	Thread protocols are enabled.

Link API > Link

Classes

Macros

Typedefs

Enumerations

Functions

Detailed Description

Macro Definition Documentation

◆ OT_MAC_FILTER_FIXED_RSS_DISABLED

Typedef Documentation

◆ otHandleActiveScanResult

◆ otHandleEnergyScanResult

◆ otLinkPcapCallback

Enumeration Type Documentation

◆ otMacFilterAddressMode

Function Documentation

◆ otLinkActiveScan()

◆ otLinkConvertLinkQualityToRss()

◆ otLinkConvertRssToLinkQuality()

◆ otLinkEnergyScan()

◆ otLinkFilterAddAddress()

◆ otLinkFilterAddRssIn()

◆ otLinkFilterClearAddresses()

◆ otLinkFilterClearRssIn()

◆ otLinkFilterGetAddressMode()

◆ otLinkFilterGetNextAddress()

◆ otLinkFilterGetNextRssIn()

◆ otLinkFilterRemoveAddress()

◆ otLinkFilterRemoveRssIn()

◆ otLinkFilterSetAddressMode()

◆ otLinkGetCcaFailureRate()

◆ otLinkGetChannel()

◆ otLinkGetCounters()

◆ otLinkGetExtendedAddress()

◆ otLinkGetFactoryAssignedIeeeEui64()

◆ otLinkGetMaxFrameRetriesDirect()

◆ otLinkGetMaxFrameRetriesIndirect()

◆ otLinkGetPanId()

◆ otLinkGetPollPeriod()

◆ otLinkGetShortAddress()

◆ otLinkGetSupportedChannelMask()

◆ otLinkGetTxDirectRetrySuccessHistogram()

◆ otLinkGetTxIndirectRetrySuccessHistogram()

◆ otLinkIsActiveScanInProgress()

◆ otLinkIsEnabled()

◆ otLinkIsEnergyScanInProgress()

◆ otLinkIsInTransmitState()

◆ otLinkIsPromiscuous()

◆ otLinkOutOfBandTransmitRequest()

◆ otLinkResetCounters()

◆ otLinkResetTxRetrySuccessHistogram()

◆ otLinkSendDataRequest()

◆ otLinkSetChannel()

◆ otLinkSetEnabled()

◆ otLinkSetExtendedAddress()

◆ otLinkSetMaxFrameRetriesDirect()

◆ otLinkSetMaxFrameRetriesIndirect()

◆ otLinkSetPanId()

◆ otLinkSetPcapCallback()

◆ otLinkSetPollPeriod()

◆ otLinkSetPromiscuous()

◆ otLinkSetSupportedChannelMask()

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