Network layer(NWK)

Network layer (NWK) provides core stack functionality and provides two routing algorithms,1.Native routing and 2.AODV routing.

#define	NWK_MAX_PAYLOAD_SIZE
#define	NWK_BROADCAST_PANID   0xffff
#define	NWK_BROADCAST_ADDR   0xffff
#define	NWK_ENDPOINTS_AMOUNT   16
enum	NWK_Status_t {   NWK_SUCCESS_STATUS = 0x00,   NWK_ERROR_STATUS = 0x01,   NWK_OUT_OF_MEMORY_STATUS = 0x02,   NWK_NO_ACK_STATUS = 0x10,   NWK_NO_ROUTE_STATUS = 0x11,   NWK_PHY_CHANNEL_ACCESS_FAILURE_STATUS = 0x20,   NWK_PHY_NO_ACK_STATUS = 0x21 }
typedef struct NwkIb_t	NwkIb_t
NwkIb_t	nwkIb
void	NWK_Init (void)
	Initializes all network layer modules. More...
void	NWK_SetAddr (uint16_t addr)
	Sets network address of the node. More...
void	NWK_SetPanId (uint16_t panId)
	Sets network identifier (PAN) of the node. More...
void	NWK_OpenEndpoint (uint8_t id, bool(*handler)(NWK_DataInd_t *ind))
	Registers callback ind for the endpoint endpoint. More...
bool	NWK_Busy (void)
	Checks if network layer is ready for sleep. More...
void	NWK_Lock (void)
	Increases the lock counter and sets a busy state. More...
void	NWK_Unlock (void)
	Decreases the lock counter and sets a free state if counter reaches 0. More...
void	NWK_SleepReq (void)
	Puts network layer to a sleeping state. More...
void	NWK_WakeupReq (void)
	Puts network layer to an active state. More...
void	NWK_TaskHandler (void)
	Network layer task handler. More...
uint8_t	NWK_LinearizeLqi (uint8_t lqi)
	Calculates linearized value for the given value of the LQI. More...

#define NWK_BROADCAST_ADDR   0xffff

Referenced by nwkRxHandleIndication(), nwkRxHandleReceivedFrame(), nwkRxIndicateFrame(), nwkTxBroadcastFrame(), and nwkTxFrame().

#define NWK_BROADCAST_PANID   0xffff

Referenced by nwkRxHandleIndication(), nwkRxHandleReceivedFrame(), nwkRxIndicateFrame(), and nwkTxFrame().

#define NWK_ENDPOINTS_AMOUNT   16

Referenced by NWK_Init().

#define NWK_MAX_PAYLOAD_SIZE

Value:

(127 - 16 /*NwkFrameHeader_t*/ - \
    2 /*crc*/)

typedef struct NwkIb_t NwkIb_t

enum NWK_Status_t

Enumerator
NWK_SUCCESS_STATUS
NWK_ERROR_STATUS
NWK_OUT_OF_MEMORY_STATUS
NWK_NO_ACK_STATUS
NWK_NO_ROUTE_STATUS
NWK_PHY_CHANNEL_ACCESS_FAILURE_STATUS
NWK_PHY_NO_ACK_STATUS

bool NWK_Busy

(

void

)

Checks if network layer is ready for sleep.

Returns

true if network layer is ready for sleep or false otherwise

References NwkIb_t::lock.

void NWK_Init

(

void

)

Initializes all network layer modules.

References NwkIb_t::addr, NwkIb_t::endpoint, NwkIb_t::lock, NwkIb_t::macSeqNum, NWK_ENDPOINTS_AMOUNT, nwkDataReqInit(), nwkFrameInit(), nwkRxInit(), NwkIb_t::nwkSeqNum, and nwkTxInit().

Referenced by SYS_Init().

uint8_t NWK_LinearizeLqi

(

uint8_t

lqi

)

Calculates linearized value for the given value of the LQI.

Parameters

[in]

lqi

LQI value as provided by the transceiver

Returns

linearized value directly proportional to the probability of delivery

void NWK_Lock

(

void

)

Increases the lock counter and sets a busy state.

References NwkIb_t::lock.

void NWK_OpenEndpoint	(	uint8_t	id,
		bool(*)(NWK_DataInd_t *ind)	handler
	)

Registers callback ind for the endpoint endpoint.

Parameters

[in]	id	Endpoint index (1-15)
[in]	handler	Pointer to the callback function

References NwkIb_t::endpoint.

Referenced by nwkRxInit().

void NWK_SetAddr

(

uint16_t

addr

)

Sets network address of the node.

Parameters

[in]

addr

Adddress to set

References NwkIb_t::addr, and PHY_SetShortAddr().

void NWK_SetPanId

(

uint16_t

panId

)

Sets network identifier (PAN) of the node.

Parameters

[in]

panId

PAN ID to set

References NwkIb_t::panId, and PHY_SetPanId().

void NWK_SleepReq

(

void

)

Puts network layer to a sleeping state.

References PHY_Sleep().

void NWK_TaskHandler

(

void

)

Network layer task handler.

References nwkDataReqTaskHandler(), nwkRxTaskHandler(), and nwkTxTaskHandler().

Referenced by SYS_TaskHandler().

void NWK_Unlock

(

void

)

Decreases the lock counter and sets a free state if counter reaches 0.

References NwkIb_t::lock.

void NWK_WakeupReq

(

void

)

Puts network layer to an active state.

References PHY_Wakeup().

NwkIb_t nwkIb

Referenced by NWK_DataReq(), nwkDataReqConfirm(), nwkDataReqSendFrame(), nwkFrameAlloc(), nwkFrameCommandInit(), nwkFrameFree(), nwkRxHandleIndication(), nwkRxHandleReceivedFrame(), nwkRxIndicateFrame(), nwkRxRejectDuplicate(), nwkTxBroadcastFrame(), nwkTxFrame(), nwkTxTaskHandler(), and PHY_DataConf().