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ot::Ncp::NcpHdlc class
Syntax
class NcpHdlc : public NcpBase
{
typedef NcpBase super_t;
public:
explicit NcpHdlc(Instance *aInstance, otNcpHdlcSendCallback aSendCallback);
#if OPENTHREAD_CONFIG_MULTIPAN_RCP_ENABLE && OPENTHREAD_RADIO
explicit NcpHdlc(Instance **aInstances, uint8_t aCount, otNcpHdlcSendCallback aSendCallback);
#endif
void HandleHdlcSendDone(void);
void HandleHdlcReceiveDone(const uint8_t *aBuf, uint16_t aBufLength);
private:
enum
{
kHdlcTxBufferSize = OPENTHREAD_CONFIG_NCP_HDLC_TX_CHUNK_SIZE,
kRxBufferSize = OPENTHREAD_CONFIG_NCP_HDLC_RX_BUFFER_SIZE +
OPENTHREAD_CONFIG_NCP_SPINEL_ENCRYPTER_EXTRA_DATA_SIZE,
};
enum HdlcTxState
{
kStartingFrame,
kEncodingFrame,
kFinalizingFrame,
};
#if OPENTHREAD_ENABLE_NCP_SPINEL_ENCRYPTER
class BufferEncrypterReader
{
public:
explicit BufferEncrypterReader(Spinel::Buffer &aTxFrameBuffer);
bool IsEmpty(void) const;
otError OutFrameBegin(void);
bool OutFrameHasEnded(void);
uint8_t OutFrameReadByte(void);
otError OutFrameRemove(void);
private:
void Reset(void);
Spinel::Buffer &mTxFrameBuffer;
uint8_t mDataBuffer[kRxBufferSize];
size_t mDataBufferReadIndex;
size_t mOutputDataLength;
};
#endif
void EncodeAndSend(void);
void HandleFrame(otError aError);
void HandleError(otError aError, uint8_t *aBuf, uint16_t aBufLength);
void TxFrameBufferHasData(void);
void HandleFrameAddedToNcpBuffer(void);
static void EncodeAndSend(Tasklet &aTasklet);
static void HandleFrame(void *aContext, otError aError);
static void HandleFrameAddedToNcpBuffer(void *aContext,
Spinel::Buffer::FrameTag aTag,
Spinel::Buffer::Priority aPriority,
Spinel::Buffer *aBuffer);
otNcpHdlcSendCallback mSendCallback;
Spinel::FrameBuffer<kHdlcTxBufferSize> mHdlcBuffer;
Hdlc::Encoder mFrameEncoder;
Hdlc::Decoder mFrameDecoder;
HdlcTxState mState;
uint8_t mByte;
Spinel::FrameBuffer<kRxBufferSize> mRxBuffer;
bool mHdlcSendImmediate;
Tasklet mHdlcSendTask;
#if OPENTHREAD_ENABLE_NCP_SPINEL_ENCRYPTER
BufferEncrypterReader mTxFrameBufferEncrypterReader;
#endif
};
Fields
Field
Declared as
uint8_t