nwkRx.c File Reference

Receive routines implementation.

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include "phy.h"
#include "sysConfig.h"
#include "sysTimer.h"
#include "nwk.h"
#include "nwkTx.h"
#include "nwkFrame.h"
#include "nwkGroup.h"
#include "nwkRoute.h"
#include "nwkCommand.h"
#include "nwkSecurity.h"
#include "nwkRouteDiscovery.h"

Data Structures
struct	NwkDuplicateRejectionEntry_t

Macros
#define	DUPLICATE_REJECTION_TTL
#define	NWK_RX_DUPLICATE_REJECTION_TIMER_INTERVAL   100 /* ms */
#define	NWK_SERVICE_ENDPOINT_ID   0

Typedefs
typedef struct NwkDuplicateRejectionEntry_t	NwkDuplicateRejectionEntry_t

Enumerations
enum	{   NWK_RX_STATE_RECEIVED = 0x20,   NWK_RX_STATE_DECRYPT = 0x21,   NWK_RX_STATE_INDICATE = 0x22,   NWK_RX_STATE_ROUTE = 0x23,   NWK_RX_STATE_FINISH = 0x24 }

Functions
void	NWK_SetAckControl (uint8_t control)
void	nwkRxDecryptConf (NwkFrame_t *frame, bool status)
static void	nwkRxDuplicateRejectionTimerHandler (SYS_Timer_t *timer)
static void	nwkRxHandleIndication (NwkFrame_t *frame)
static void	nwkRxHandleReceivedFrame (NwkFrame_t *frame)
static bool	nwkRxIndicateFrame (NwkFrame_t *frame)
void	nwkRxInit (void)
	Initializes the Rx module. More...
static bool	nwkRxRejectDuplicate (NwkFrameHeader_t *header)
static void	nwkRxSendAck (NwkFrame_t *frame)
static bool	nwkRxSeriveDataInd (NWK_DataInd_t *ind)
void	nwkRxTaskHandler (void)
	Rx Module task handler. More...
void	PHY_DataInd (PHY_DataInd_t *ind)

Variables
static uint8_t	nwkRxAckControl
static NwkDuplicateRejectionEntry_t	nwkRxDuplicateRejectionTable [NWK_DUPLICATE_REJECTION_TABLE_SIZE]
static SYS_Timer_t	nwkRxDuplicateRejectionTimer

#define DUPLICATE_REJECTION_TTL

Value:

((NWK_DUPLICATE_REJECTION_TTL / \
	NWK_RX_DUPLICATE_REJECTION_TIMER_INTERVAL) + 1)

Referenced by nwkRxRejectDuplicate().

#define NWK_RX_DUPLICATE_REJECTION_TIMER_INTERVAL   100 /* ms */

Referenced by nwkRxInit().

#define NWK_SERVICE_ENDPOINT_ID   0

Referenced by nwkRxInit().

typedef struct NwkDuplicateRejectionEntry_t NwkDuplicateRejectionEntry_t

anonymous enum

Enumerator
NWK_RX_STATE_RECEIVED
NWK_RX_STATE_DECRYPT
NWK_RX_STATE_INDICATE
NWK_RX_STATE_ROUTE
NWK_RX_STATE_FINISH

void NWK_SetAckControl

(

uint8_t

control

)

References nwkRxAckControl.

void nwkRxDecryptConf	(	NwkFrame_t *	frame,
		bool	status
	)

References NWK_RX_STATE_FINISH, NWK_RX_STATE_INDICATE, and NwkFrame_t::state.

Referenced by nwkSecurityTaskHandler().

static void nwkRxDuplicateRejectionTimerHandler ( SYS_Timer_t *  timer )

static

References NWK_DUPLICATE_REJECTION_TABLE_SIZE, SYS_TimerStart(), and NwkDuplicateRejectionEntry_t::ttl.

Referenced by nwkRxInit().

static void nwkRxHandleIndication ( NwkFrame_t *  frame )

static

References NwkFrameHeader_t::ackRequest, NwkIb_t::addr, NwkFrame_t::header, NwkFrameHeader_t::macDstAddr, NwkFrameHeader_t::macDstPanId, NwkFrameHeader_t::multicast, NWK_BROADCAST_ADDR, NWK_BROADCAST_PANID, NWK_RX_STATE_FINISH, NwkFrameHeader_t::nwkDstAddr, NwkFrameHeader_t::nwkFcf, nwkIb, nwkRxAckControl, nwkRxIndicateFrame(), nwkRxSendAck(), and NwkFrame_t::state.

Referenced by nwkRxTaskHandler().

static void nwkRxHandleReceivedFrame ( NwkFrame_t *  frame )

static

References NwkFrameHeader_t::ackRequest, NwkIb_t::addr, NwkFrame_t::header, NwkFrameHeader_t::linkLocal, NwkFrameHeader_t::macDstAddr, NwkFrameHeader_t::macDstPanId, NwkFrameHeader_t::macSrcAddr, NwkFrameMulticastHeader_t::maxMemberRadius, NwkFrameMulticastHeader_t::maxNonMemberRadius, NwkFrameMulticastHeader_t::memberRadius, NwkFrameHeader_t::multicast, NwkFrameMulticastHeader_t::nonMemberRadius, NWK_BROADCAST_ADDR, NWK_BROADCAST_PANID, NWK_RX_STATE_DECRYPT, NWK_RX_STATE_FINISH, NWK_RX_STATE_INDICATE, NWK_RX_STATE_ROUTE, NwkFrameHeader_t::nwkDstAddr, NwkFrameHeader_t::nwkFcf, nwkIb, nwkRouteFrameReceived(), nwkRxRejectDuplicate(), NwkFrameHeader_t::nwkSrcAddr, nwkTxBroadcastFrame(), NwkFrame_t::payload, NwkFrame_t::rx, NwkFrameHeader_t::security, and NwkFrame_t::state.

Referenced by nwkRxTaskHandler().

static bool nwkRxIndicateFrame ( NwkFrame_t *  frame )

static

References NwkFrameHeader_t::ackRequest, NWK_DataInd_t::data, NWK_DataInd_t::dstAddr, NWK_DataInd_t::dstEndpoint, NwkIb_t::endpoint, NwkFrame_t::header, NwkFrameHeader_t::linkLocal, NWK_DataInd_t::lqi, NwkFrameHeader_t::macDstPanId, NwkFrameHeader_t::macSrcAddr, NwkFrameHeader_t::multicast, NWK_BROADCAST_ADDR, NWK_BROADCAST_PANID, NWK_IND_OPT_ACK_REQUESTED, NWK_IND_OPT_BROADCAST, NWK_IND_OPT_BROADCAST_PAN_ID, NWK_IND_OPT_LINK_LOCAL, NWK_IND_OPT_LOCAL, NWK_IND_OPT_MULTICAST, NWK_IND_OPT_SECURED, NwkFrameHeader_t::nwkDstAddr, NwkFrameHeader_t::nwkDstEndpoint, NwkFrameHeader_t::nwkFcf, nwkFramePayloadSize(), nwkIb, NwkFrameHeader_t::nwkSrcAddr, NwkFrameHeader_t::nwkSrcEndpoint, NWK_DataInd_t::options, NwkFrame_t::payload, NWK_DataInd_t::rssi, NwkFrame_t::rx, NwkFrameHeader_t::security, NWK_DataInd_t::size, NWK_DataInd_t::srcAddr, and NWK_DataInd_t::srcEndpoint.

Referenced by nwkRxHandleIndication().

void nwkRxInit

(

void

)

Initializes the Rx module.

References SYS_Timer_t::handler, SYS_Timer_t::interval, SYS_Timer_t::mode, NWK_DUPLICATE_REJECTION_TABLE_SIZE, NWK_OpenEndpoint(), NWK_RX_DUPLICATE_REJECTION_TIMER_INTERVAL, NWK_SERVICE_ENDPOINT_ID, nwkRxDuplicateRejectionTimerHandler(), nwkRxSeriveDataInd(), SYS_TIMER_INTERVAL_MODE, and NwkDuplicateRejectionEntry_t::ttl.

Referenced by NWK_Init().

static bool nwkRxRejectDuplicate ( NwkFrameHeader_t *  header )

static

References NwkIb_t::addr, DUPLICATE_REJECTION_TTL, if(), NwkFrameHeader_t::macDstAddr, NwkDuplicateRejectionEntry_t::mask, NwkFrameHeader_t::multicast, NWK_DUPLICATE_REJECTION_TABLE_SIZE, NwkFrameHeader_t::nwkDstAddr, NwkFrameHeader_t::nwkFcf, nwkIb, nwkRouteRemove(), NwkFrameHeader_t::nwkSeq, NwkFrameHeader_t::nwkSrcAddr, NwkDuplicateRejectionEntry_t::seq, NwkDuplicateRejectionEntry_t::src, SYS_TimerStart(), and NwkDuplicateRejectionEntry_t::ttl.

Referenced by nwkRxHandleReceivedFrame().

static void nwkRxSendAck ( NwkFrame_t *  frame )

static

References NwkCommandAck_t::control, NwkFrame_t::header, NwkCommandAck_t::id, NWK_COMMAND_ACK, NwkFrameHeader_t::nwkDstAddr, NwkFrameHeader_t::nwkFcf, nwkFrameAlloc(), nwkFrameCommandInit(), nwkRxAckControl, NwkFrameHeader_t::nwkSeq, NwkFrameHeader_t::nwkSrcAddr, nwkTxFrame(), NwkFrame_t::payload, NwkFrameHeader_t::security, NwkCommandAck_t::seq, NwkFrame_t::size, and NwkFrame_t::tx.

Referenced by nwkRxHandleIndication().

static bool nwkRxSeriveDataInd ( NWK_DataInd_t *  ind )

static

References NWK_DataInd_t::data, NWK_COMMAND_ACK, NWK_COMMAND_ROUTE_ERROR, NWK_COMMAND_ROUTE_REPLY, NWK_COMMAND_ROUTE_REQUEST, NWK_IND_OPT_SECURED, nwkRouteErrorReceived(), nwkTxAckReceived(), NWK_DataInd_t::options, and NWK_DataInd_t::size.

Referenced by nwkRxInit().

void nwkRxTaskHandler

(

void

)

Rx Module task handler.

References NWK_RX_STATE_DECRYPT, NWK_RX_STATE_FINISH, NWK_RX_STATE_INDICATE, NWK_RX_STATE_RECEIVED, NWK_RX_STATE_ROUTE, nwkFrameFree(), nwkFrameNext(), nwkRouteFrame(), nwkRxHandleIndication(), nwkRxHandleReceivedFrame(), nwkSecurityProcess(), and NwkFrame_t::state.

Referenced by NWK_TaskHandler().

void PHY_DataInd

(

PHY_DataInd_t *

ind

)

References PHY_DataInd_t::data, NwkFrame_t::data, PHY_DataInd_t::lqi, NWK_RX_STATE_RECEIVED, nwkFrameAlloc(), PHY_DataInd_t::rssi, NwkFrame_t::rx, PHY_DataInd_t::size, NwkFrame_t::size, and NwkFrame_t::state.

Referenced by PHY_TaskHandler().

uint8_t nwkRxAckControl

static

Referenced by NWK_SetAckControl(), nwkRxHandleIndication(), and nwkRxSendAck().

NwkDuplicateRejectionEntry_t nwkRxDuplicateRejectionTable[NWK_DUPLICATE_REJECTION_TABLE_SIZE]

static

SYS_Timer_t nwkRxDuplicateRejectionTimer

static