(* Copyright (C)2018-2024, Philip Munts dba Munts Technologies.                *)
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MODULE test_watchdog;

IMPORT Watchdog_libsimpleio;

FROM STextIO IMPORT WriteString, WriteLn;
FROM SWholeIO IMPORT WriteCard;
FROM FIO IMPORT FlushOutErr;
FROM ErrorHandling IMPORT CheckError;
FROM liblinux IMPORT LINUX_usleep;

VAR
  wdt     : Watchdog_libsimpleio.Watchdog;
  error   : CARDINAL;
  timeout : CARDINAL;
  i       : CARDINAL;

BEGIN
  WriteLn;
  WriteString("Raspberry Pi Watchdog Timer Test");
  WriteLn;
  WriteLn;
  FlushOutErr;

  Watchdog_libsimpleio.Open("/dev/watchdog", wdt, error);
  CheckError(error, "Watchdog_libsimpleio.Open() failed");

  Watchdog_libsimpleio.GetTimeout(wdt, timeout, error);
  CheckError(error, "Watchdog_libsimpleio.GetTimeout() failed");

  WriteString("Default Timeout => ");
  WriteCard(timeout, 0);
  WriteString(" seconds");
  WriteLn;
  FlushOutErr;

  Watchdog_libsimpleio.SetTimeout(wdt, 5, error);
  CheckError(error, "Watchdog_libsimpleio.SetTimeout() failed");

  Watchdog_libsimpleio.GetTimeout(wdt, timeout, error);
  CheckError(error, "Watchdog_libsimpleio.GetTimeout() failed");

  WriteString("New Timeout     => ");
  WriteCard(timeout, 0);
  WriteString(" seconds");
  WriteLn;
  WriteLn;
  FlushOutErr;

  WriteString("Kick the dog...");
  WriteLn;
  WriteLn;
  FlushOutErr;

  FOR i := 1 TO 5 DO
    WriteCard(i, 0);
    WriteLn;
    FlushOutErr;

    Watchdog_libsimpleio.Kick(wdt, error);
    CheckError(error, "Watchdog_libsimpleio.Kick() failed");

    LINUX_usleep(1000000, error);
    CheckError(error, "LINUX_usleep() failed");
  END;

  WriteLn;
  WriteString("Don't kick the dog...");
  WriteLn;
  WriteLn;
  FlushOutErr;

  FOR i := 1 TO 10 DO
    WriteCard(i, 0);
    WriteLn;
    FlushOutErr;

    LINUX_usleep(1000000, error);
    CheckError(error, "LINUX_usleep() failed");
  END;
END test_watchdog.