sniffer.h File Reference

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Detailed Description

Interface of the Simple Sniffer and Scanner Application.

Definition in file sniffer.h.

Go to the source code of this file.

Data Structures
struct	dbg_t
struct	scan_result_tag
	Data structure for scan results. More...
struct	sniffer_context_tag
	Data structure for internal state variables of the application. More...
struct	sniffer_packet_tag
Defines
#define	CHANNEL_MAX_OFFSET   (TRX_NB_CHANNELS-1)
#define	CHANNEL_NEXT_CIRCULAR(x)
#define	CHANNEL_OFFSET(x)   (x > TRX_MAX_CHANNEL ? TRX_MIN_CHANNEL : (x - TRX_MIN_CHANNEL))
#define	NL   "\n\r"
#define	SCAN_PERIOD_MS   (2000)
#define	VERSION   "0.1"
Typedefs
typedef struct scan_result_tag	scan_result_t
typedef struct sniffer_context_tag	sniffer_context_t
typedef struct sniffer_packet_tag	sniffer_packet_t
Enumerations
enum	sniffer_state_t {   IDLE, EDSCAN, SCAN, SCAN_DONE,   SNIFF }
	Appication States. More...
Functions
void	ctrl_process_input (void)
void	scan_continue (void)
void	scan_init (void)
	Initialize the scan mode.
static void	scan_update_frame (uint8_t flen, bool crc_ok, uint8_t lqi, uint8_t ed, uint8_t *rxbuf)
	update the scan table for a channel.
void	sniffer_start (sniffer_state_t state)
	Process data received from HIF.
void	sniffer_stop (void)
	Halt current operation and enter state IDLE.
Variables
sniffer_context_t	ctx

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Define Documentation

#define CHANNEL_NEXT_CIRCULAR

(

x

)

Value:

do \
    { \
        (x)++; \
        if ((x) > TRX_MAX_CHANNEL) \
        { \
            (x) = TRX_MIN_CHANNEL; \
        } \
    } \
    while(0)

Increment channel number and wraps back to lowest channel, if upper channel + 1 is reached.

Definition at line 64 of file sniffer.h.

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Enumeration Type Documentation

enum sniffer_state_t

Appication States.

Enumerator:

IDLE	Application is in idle mode, receiving commands from HIF.
EDSCAN	Application is in scanning mode.
SCAN	Application is in scanning mode.
SCAN_DONE	Application is in scanning mode.
SNIFF	Application is in sniffing mode.

Definition at line 79 of file sniffer.h.

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Function Documentation

void scan_init

(

void

)

Initialize the scan mode.

Definition at line 56 of file sniffer_scan.c.

static void scan_update_frame	(	uint8_t	flen,
		bool	crc_ok,
		uint8_t	lqi,
		uint8_t	ed,
		uint8_t *	rxbuf
	)			[static]

update the scan table for a channel.

Definition at line 164 of file sniffer.h.

void sniffer_start

(

sniffer_state_t

state

)

Process data received from HIF.

The function checks for available input data and performs depending on the current state the processing.

Definition at line 134 of file sniffer.c.

void sniffer_stop

(

void

)

Halt current operation and enter state IDLE.

Definition at line 160 of file sniffer.c.

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Variable Documentation

sniffer_context_t ctx

Note:

In order to get higher performance in frame receiving, this application uses a own implementation of the transceiver interrrupt routine (TRX_IRQ_vect), instead of the callback function from librf23x.a.

Definition at line 52 of file sniffer.c.