ping.c File Reference

this file contains functions to enable a raven node to join the 6LoWPAN network More...

#include <sys/svcs.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/inet.h>
#include <netinet/in.h>
#include <iwconfig.h>
#include <raven.h>
#include "ieee802154.h"
#include "uart.h"

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Defines
#define	LEDMAX   20
	Maximum LED blink window, in units of 200ms epochs.
#define	MAXIP   40
	maximum number of characters used to display IPv6 address
#define	IPMSG   "IPv6:"
	default display string preceding IP addresses
#define	IWMSG   "LPAN-UP "
	Completion notification of iwconfig UP.
#define	HMSG   "RockPing"
	startup message displayed on the raven LCD
Functions
void	__main (event_t event, void *cbargs, void *context)
	this function is invoked after boot
void	timer_handler (event_t event, void *cbaargs, void *context)
	this function is invoked when the timer is fired
void	iwconfig_handler (event_t event, void *cbargs, void *context)
	this function is invoked when iwconfig() UP operation is complete
void	route_notify_handler (event_t event, void *cbargs, void *context)
	this function is invoked when svccntl() ROUTESVC_NOTIFY signal takes place
void	iwstatus_handler (event_t event, void *cbargs, void *context)
	this function is invoked when iwconfig() STATUS operation is complete
void	setBlink (uint8_t count)
	this function sets LED_cnt and LED_limit
void	iwconfig_init (net_device_t net_device)
Variables
static int16_t	g_timerfd
	timer descripter, used to hold the return value of timer()
static uint8_t	LED_cnt = 0
	Current LED blink count, in units of 200ms epochs, initialized to 0.
static uint8_t	LED_limit = 0
	Current LED blink limit, in units of 200ms epochs, initialized to 0.
uint8_t	ieee154_channel = default_ieee154_channel
	default 802.15.4 channel, defiend in ieee802154.h
uint16_t	ieee154_panid = default_ieee154_panid
	default 80215.4 PAN ID, defined in ieee802154.h
static net_device_info_t	g_lpan0_info
	Network interface information from iwconfig.

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Detailed Description

this file contains functions to enable a raven node to join the 6LoWPAN network

---

Define Documentation

#define HMSG   "RockPing"

startup message displayed on the raven LCD

#define IPMSG   "IPv6:"

default display string preceding IP addresses

#define IWMSG   "LPAN-UP "

Completion notification of iwconfig UP.

#define LEDMAX   20

Maximum LED blink window, in units of 200ms epochs.

#define MAXIP   40

maximum number of characters used to display IPv6 address

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Function Documentation

void __main	(	event_t	event,
		void *	cbargs,
		void *	context
	)

this function is invoked after boot

__main

Parameters:

	event	equals MAIN as this is a boot event
	cbargs	is NULL for boot event
	context	is NULL for boot event

Returns:

none

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void iwconfig_handler	(	event_t	event,
		void *	cbargs,
		void *	context
	)

this function is invoked when iwconfig() UP operation is complete

iwconfig_handler

Parameters:

	event	equals to IWCONFIG as this is a iwconfig() UP callback
	cbargs	passes dev_info back from iwconfig() UP call
	context	passes context back from iwconfig() UP call

Returns:

none

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void iwconfig_init

(

net_device_t

net_device

)

iwconfig_init

Initialize the wireless interface

Parameters:

net_device

is the data structure used to hold the interface configuration data

Returns:

none

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void iwstatus_handler	(	event_t	event,
		void *	cbargs,
		void *	context
	)

this function is invoked when iwconfig() STATUS operation is complete

iwstatus_handler

Parameters:

	event	equals to IWCONFIG as this is a iwconfig() STATUS callback
	cbargs	passes dev_info back from iwconfig() STATUS call
	context	passes context back from iwconfig() STATUS call

Returns:

none

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void route_notify_handler	(	event_t	event,
		void *	cbargs,
		void *	context
	)

this function is invoked when svccntl() ROUTESVC_NOTIFY signal takes place

route_notify_handler

Parameters:

	event	equals to SVCCNTRL as this is a svccntrl() callback
	cbargs	passes resource back from svccntrl() call
	context	passes context back from svccntrl() call

Returns:

none

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void setBlink

(

uint8_t

count

)

this function sets LED_cnt and LED_limit

setBlink

LED_cnt = count

LED_limit = LED_cnt * 2

Parameters:

count

is the value of LED_cnt

Returns:

none

void timer_handler	(	event_t	event,
		void *	cbaargs,
		void *	context
	)

this function is invoked when the timer is fired

timer_handler

Parameters:

	event	equals to SETITIMER as this is a setitimer() callback
	cbargs	passes resource back from setitimer() call
	context	passes context back from setitimer() call

Returns:

none

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Variable Documentation

net_device_info_t g_lpan0_info [static]

Network interface information from iwconfig.

int16_t g_timerfd [static]

timer descripter, used to hold the return value of timer()

uint8_t ieee154_channel = default_ieee154_channel

default 802.15.4 channel, defiend in ieee802154.h

uint16_t ieee154_panid = default_ieee154_panid

default 80215.4 PAN ID, defined in ieee802154.h

uint8_t LED_cnt = 0 [static]

Current LED blink count, in units of 200ms epochs, initialized to 0.

uint8_t LED_limit = 0 [static]

Current LED blink limit, in units of 200ms epochs, initialized to 0.