Radio Operation#

otPlatRadioGetState#

otRadioState otPlatRadioGetState (otInstance * aInstance)

Get current state of the radio.

This function is not required by OpenThread. It may be used for debugging and/or application-specific purposes.

Note

• This function may be not implemented. It does not affect OpenThread.

Returns

• Current state of the radio.

otPlatRadioEnable#

otError otPlatRadioEnable (otInstance * aInstance)

Enable the radio.

otPlatRadioDisable#

otError otPlatRadioDisable (otInstance * aInstance)

Disable the radio.

otPlatRadioIsEnabled#

bool otPlatRadioIsEnabled (otInstance * aInstance)

Check whether radio is enabled or not.

Returns

• TRUE if the radio is enabled, FALSE otherwise.

otPlatRadioSleep#

otError otPlatRadioSleep (otInstance * aInstance)

Transition the radio from Receive to Sleep (turn off the radio).

otPlatRadioReceive#

otError otPlatRadioReceive (otInstance * aInstance, uint8_t aChannel)

Transition the radio from Sleep to Receive (turn on the radio).

otPlatRadioReceiveAt#

otError otPlatRadioReceiveAt (otInstance * aInstance, uint8_t aChannel, uint32_t aStart, uint32_t aDuration)

Schedule a radio reception window at a specific time and duration.

otPlatRadioReceiveDone#

void otPlatRadioReceiveDone (otInstance * aInstance, otRadioFrame * aFrame, otError aError)

The radio driver calls this method to notify OpenThread of a received frame.

otPlatDiagRadioReceiveDone#

void otPlatDiagRadioReceiveDone (otInstance * aInstance, otRadioFrame * aFrame, otError aError)

The radio driver calls this method to notify OpenThread diagnostics module of a received frame.

This function is used when diagnostics is enabled.

otPlatRadioGetTransmitBuffer#

otRadioFrame * otPlatRadioGetTransmitBuffer (otInstance * aInstance)

Get the radio transmit frame buffer.

OpenThread forms the IEEE 802.15.4 frame in this buffer then calls otPlatRadioTransmit() to request transmission.

Returns

• A pointer to the transmit frame buffer.

otPlatRadioTransmit#

otError otPlatRadioTransmit (otInstance * aInstance, otRadioFrame * aFrame)

Begin the transmit sequence on the radio.

The caller must form the IEEE 802.15.4 frame in the buffer provided by otPlatRadioGetTransmitBuffer() before requesting transmission. The channel and transmit power are also included in the otRadioFrame structure.

The transmit sequence consists of:

1. Transitioning the radio to Transmit from one of the following states:

   • Receive if RX is on when the device is idle or OT_RADIO_CAPS_SLEEP_TO_TX is not supported

   • Sleep if RX is off when the device is idle and OT_RADIO_CAPS_SLEEP_TO_TX is supported.

2. Transmits the psdu on the given channel and at the given transmit power.

otPlatRadioTxStarted#

void otPlatRadioTxStarted (otInstance * aInstance, otRadioFrame * aFrame)

The radio driver calls this method to notify OpenThread that the transmission has started.

Note

• This function should be called by the same thread that executes all of the other OpenThread code. It should not be called by ISR or any other task.

otPlatRadioTxDone#

void otPlatRadioTxDone (otInstance * aInstance, otRadioFrame * aFrame, otRadioFrame * aAckFrame, otError aError)

The radio driver calls this function to notify OpenThread that the transmit operation has completed, providing both the transmitted frame and, if applicable, the received ack frame.

When radio provides OT_RADIO_CAPS_TRANSMIT_SEC capability, radio platform layer updates aFrame with the security frame counter and key index values maintained by the radio.

otPlatDiagRadioTransmitDone#

void otPlatDiagRadioTransmitDone (otInstance * aInstance, otRadioFrame * aFrame, otError aError)

The radio driver calls this method to notify OpenThread diagnostics module that the transmission has completed.

This function is used when diagnostics is enabled.

otPlatRadioGetRssi#

int8_t otPlatRadioGetRssi (otInstance * aInstance)

Get the most recent RSSI measurement.

Returns

• The RSSI in dBm when it is valid. 127 when RSSI is invalid.

otPlatRadioEnergyScan#

otError otPlatRadioEnergyScan (otInstance * aInstance, uint8_t aScanChannel, uint16_t aScanDuration)

Begin the energy scan sequence on the radio.

This function is used when radio provides OT_RADIO_CAPS_ENERGY_SCAN capability.

otPlatRadioEnergyScanDone#

void otPlatRadioEnergyScanDone (otInstance * aInstance, int8_t aEnergyScanMaxRssi)

The radio driver calls this method to notify OpenThread that the energy scan is complete.

This function is used when radio provides OT_RADIO_CAPS_ENERGY_SCAN capability.

otPlatRadioEnableSrcMatch#

void otPlatRadioEnableSrcMatch (otInstance * aInstance, bool aEnable)

Enable/Disable source address match feature.

The source address match feature controls how the radio layer decides the "frame pending" bit for acks sent in response to data request commands from children.

If disabled, the radio layer must set the "frame pending" on all acks to data request commands.

If enabled, the radio layer uses the source address match table to determine whether to set or clear the "frame pending" bit in an ack to a data request command.

The source address match table provides the list of children for which there is a pending frame. Either a short address or an extended/long address can be added to the source address match table.

otPlatRadioAddSrcMatchShortEntry#

otError otPlatRadioAddSrcMatchShortEntry (otInstance * aInstance, otShortAddress aShortAddress)

Add a short address to the source address match table.

otPlatRadioAddSrcMatchExtEntry#

otError otPlatRadioAddSrcMatchExtEntry (otInstance * aInstance, const otExtAddress * aExtAddress)

Add an extended address to the source address match table.

otPlatRadioClearSrcMatchShortEntry#

otError otPlatRadioClearSrcMatchShortEntry (otInstance * aInstance, otShortAddress aShortAddress)

Remove a short address from the source address match table.

otPlatRadioClearSrcMatchExtEntry#

otError otPlatRadioClearSrcMatchExtEntry (otInstance * aInstance, const otExtAddress * aExtAddress)

Remove an extended address from the source address match table.

otPlatRadioClearSrcMatchShortEntries#

void otPlatRadioClearSrcMatchShortEntries (otInstance * aInstance)

Clear all short addresses from the source address match table.

otPlatRadioClearSrcMatchExtEntries#

void otPlatRadioClearSrcMatchExtEntries (otInstance * aInstance)

Clear all the extended/long addresses from source address match table.

otPlatRadioGetSupportedChannelMask#

uint32_t otPlatRadioGetSupportedChannelMask (otInstance * aInstance)

Get the radio supported channel mask that the device is allowed to be on.

Returns

• The radio supported channel mask.

otPlatRadioGetPreferredChannelMask#

uint32_t otPlatRadioGetPreferredChannelMask (otInstance * aInstance)

Gets the radio preferred channel mask that the device prefers to form on.

Returns

• The radio preferred channel mask.

otPlatRadioSetCoexEnabled#

otError otPlatRadioSetCoexEnabled (otInstance * aInstance, bool aEnabled)

Enable the radio coex.

This function is used when feature OPENTHREAD_CONFIG_PLATFORM_RADIO_COEX_ENABLE is enabled.

otPlatRadioIsCoexEnabled#

bool otPlatRadioIsCoexEnabled (otInstance * aInstance)

Check whether radio coex is enabled or not.

This function is used when feature OPENTHREAD_CONFIG_PLATFORM_RADIO_COEX_ENABLE is enabled.

Returns

• TRUE if the radio coex is enabled, FALSE otherwise.

otPlatRadioGetCoexMetrics#

otError otPlatRadioGetCoexMetrics (otInstance * aInstance, otRadioCoexMetrics * aCoexMetrics)

Get the radio coexistence metrics.

This function is used when feature OPENTHREAD_CONFIG_PLATFORM_RADIO_COEX_ENABLE is enabled.

otPlatRadioEnableCsl#

otError otPlatRadioEnableCsl (otInstance * aInstance, uint32_t aCslPeriod, otShortAddress aShortAddr, const otExtAddress * aExtAddr)

Enable or disable CSL receiver.

Note

• Platforms should use CSL peer addresses to include CSL IE when generating enhanced acks.

otPlatRadioUpdateCslSampleTime#

void otPlatRadioUpdateCslSampleTime (otInstance * aInstance, uint32_t aCslSampleTime)

Update CSL sample time in radio driver.

Sample time is stored in radio driver as a copy to calculate phase when sending ACK with CSL IE.

otPlatRadioGetCslAccuracy#

uint8_t otPlatRadioGetCslAccuracy (otInstance * aInstance)

Get the current accuracy, in units of ± ppm, of the clock used for scheduling CSL operations.

Note

• Platforms may optimize this value based on operational conditions (i.e.: temperature).

Returns

• The current CSL rx/tx scheduling drift, in units of ± ppm.

otPlatRadioGetCslUncertainty#

uint8_t otPlatRadioGetCslUncertainty (otInstance * aInstance)

The fixed uncertainty of the Device for scheduling CSL Transmissions in units of 10 microseconds.

Returns

• The CSL Uncertainty in units of 10 us.

otPlatRadioSetChannelMaxTransmitPower#

otError otPlatRadioSetChannelMaxTransmitPower (otInstance * aInstance, uint8_t aChannel, int8_t aMaxPower)

Set the max transmit power for a specific channel.

otPlatRadioSetRegion#

otError otPlatRadioSetRegion (otInstance * aInstance, uint16_t aRegionCode)

Set the region code.