Lanner LEC-3012 - Manual (Page 25)

25
Programming Watchdog Timer
Embedded and Industrial Computing
Appendix A
if (argc !=3) {
printf(“No timer input, program terminated\n”);
close(devfd);
exit -1;
}
tmp = atoi(argv[2]);
if ( (tmp < 1) || (tmp > 255)) {
printf(“Wrong timer value, please input within
(1~255)\n”);
close(devfd);
exit -1;
}
printf(“Set Watchdog Timer....”);
#if defined(DIRECT_IO_ACCESS)
start_watchdog_timer(tmp);
printf(“OK\n”);
#else
if( ioctl(devfd, IOCTL_SET_WDTO_TIMER, &tmp) != 0)
printf(“Fail\n”);
else
printf(“OK\n”);
#endif
}
/******** Start watchdog timer ***************************
****************/
#if !defined(DIRECT_IO_ACCESS)
else if ( !strcmp(argv[1], “--start”)) {
printf(“Start Watchdog Timer....”);
value = START_WDT;
if( ioctl(devfd, IOCTL_START_STOP_WDT, &value) !=
0)
printf(“Fail\n”);
else
printf(“OK\n”);
}
#endif
/******** Stop watchdog timer ***************************
*****************/
else if ( !strcmp(argv[1], “--stop”)) {
printf(“Stop Watchdog Timer....”);
#if defined(DIRECT_IO_ACCESS)
stop_watchdog_timer();
printf(“OK\n”);
#else
value = STOP_WDT;
if( ioctl(devfd, IOCTL_START_STOP_WDT, &value) != 0)
printf(“Fail\n”);
else
printf(“OK\n”);
#endif
}
#if BYPASS_PAIR_NUMBER > 0
/******** Set lan-bypass enable while watchdog timer
expired *************/
else if ( !strcmp(argv[1], “--swtsb”)) {
printf(“Set Watchdog Timeout State to Lan Bypass....”);
#if defined(DIRECT_IO_ACCESS)
set_wdto_state_system_bypass();
printf(“OK\n”);
#else
value = SET_WDTO_STATE_LAN_
BYPASS;
if( ioctl(devfd, IOCTL_SET_WDTO_STATE, &value) != 0)
printf(“Fail\n”);
else
printf(“OK\n”);
#endif
}
/******** Set system reset while watchdog timer expired
******************/
else if ( !strcmp(argv[1], “--swtsr”)) {
printf(“Set Watchdog Timeout State to System
Reset....”);
#if defined(DIRECT_IO_ACCESS)
set_wdto_state_system_reset();
printf(“OK\n”);
#else
value = SET_WDTO_STATE_SYSTEM_
RESET;