#include <stdio.h>
#include <rtemspppd.h>
#include "system.h"
/* define global variables */
static unsigned int pppdapp_linkcount = 0;
static rtems_id pppdapp_taskid;
static void pppdapp_linkup_hook(void)
{
pppdapp_linkcount++;
printf("PPP LINK UP [%d]\n", pppdapp_linkcount);
}
static void pppdapp_linkdown_hook(void)
{
printf("PPP LINK DOWN [%d]\n", pppdapp_linkcount);
}
static void pppdapp_ipup_hook(void)
{
/* send ipup signal to pppdapp task */
rtems_event_send(pppdapp_taskid, RTEMS_EVENT_10);
}
static void pppdapp_ipdown_hook(void)
{
/* send ip down signal to pppdapp task */
rtems_event_send(pppdapp_taskid, RTEMS_EVENT_11);
}
static void pppdapp_setup(void)
{
const char *pUser = "oscar";
const char *pPassword = "goldman";
#undef USE_MODEM
#ifdef USE_MODEM
const char *pTelephone = "5551234";
const char *pInitScript = "TIMEOUT@5@@AT@@OK@";
const char *pConnectScript = "TIMEOUT@90@@ATDT%s@CONNECT@@name:@%s@word:@%s@";
const char *pDisconnectScript = "TIMEOUT@5@@ATH0@@OK@";
char pConnect[128];
/* set the connect string */
sprintf(pConnect, pConnectScript, pTelephone, pUser, pPassword);
/* set pppd options for modem */
rtems_pppd_set_option("/dev/ttyS2", NULL);
rtems_pppd_set_option("57600", NULL);
rtems_pppd_set_option("crtscts", NULL);
rtems_pppd_set_option("modem", NULL);
rtems_pppd_set_option("noauth", NULL);
rtems_pppd_set_option("debug", NULL);
rtems_pppd_set_option("init", pInitScript);
rtems_pppd_set_option("connect", pConnect);
rtems_pppd_set_option("disconnect", pDisconnectScript);
#else
/* set pppd options for null modem direct link serial cable */
rtems_pppd_set_option("/dev/ttyS1", NULL);
rtems_pppd_set_option("57600", NULL);
rtems_pppd_set_option("crtscts", NULL);
rtems_pppd_set_option("local", NULL);
rtems_pppd_set_option("noauth", NULL);
rtems_pppd_set_option("debug", NULL);
rtems_pppd_set_option("user", pUser);
rtems_pppd_set_option("password", pPassword);
#endif
/* set up pppd hooks */
rtems_pppd_set_hook(RTEMS_PPPD_LINKUP_HOOK, pppdapp_linkup_hook);
rtems_pppd_set_hook(RTEMS_PPPD_LINKDOWN_HOOK, pppdapp_linkdown_hook);
rtems_pppd_set_hook(RTEMS_PPPD_IPUP_HOOK, pppdapp_ipup_hook);
rtems_pppd_set_hook(RTEMS_PPPD_IPDOWN_HOOK, pppdapp_ipdown_hook);
}
static rtems_task pppdapp(rtems_task_argument arg)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
rtems_interval tickspersecond = 0;
rtems_option options;
rtems_event_set in;
rtems_event_set out;
/* initialize ticks per second */
rtems_clock_get(RTEMS_CLOCK_GET_TICKS_PER_SECOND, &tickspersecond);
if ( tickspersecond == 0 ) {
/* ensure value is greater than zero */
tickspersecond = 100;
}
/* initiate connection */
pppdapp_setup();
rtems_pppd_connect();
/* enter processing loop */
in = (RTEMS_EVENT_10 | RTEMS_EVENT_11);
options = (RTEMS_EVENT_ANY | RTEMS_WAIT);
while ( sc == RTEMS_SUCCESSFUL ) {
/* wait for the next event */
sc = rtems_event_receive(in, options, RTEMS_NO_TIMEOUT, &out);
if ( sc == RTEMS_SUCCESSFUL ) {
/* determine which event was sent */
if ( out & RTEMS_EVENT_10 ) {
/* ip up recived */
/* call disconnect function */
rtems_pppd_disconnect();
}
if ( out & RTEMS_EVENT_11 ) {
/* ip down recived */
/* sleep 10 seconds and call connect function */
rtems_task_wake_after(10*tickspersecond);
rtems_pppd_connect();
}
}
}
/* terminate myself */
rtems_task_delete(RTEMS_SELF);
}
int pppdapp_initialize(void)
{
int iReturn = (int)-1;
rtems_status_code status;
rtems_name taskName;
taskName = rtems_build_name( 'p', 'a', 'p', 'p' );
status = rtems_task_create(taskName,
CONFIGURE_INIT_TASK_PRIORITY,
CONFIGURE_INIT_TASK_STACK_SIZE,
CONFIGURE_INIT_TASK_INITIAL_MODES,
RTEMS_DEFAULT_ATTRIBUTES,
&pppdapp_taskid);
if ( status == RTEMS_SUCCESSFUL ) {
status = rtems_task_start(pppdapp_taskid, pppdapp, 0);
if ( status == RTEMS_SUCCESSFUL ) {
iReturn = (int)0;
}
}
return ( iReturn );
}