/// <summary>
/// Reboots the computer
/// </summary>
/// <returns>The error code</returns>
public static ErrorCode Reboot()
{
if (Tasking.CurrentTask.UID > 0)
{
return(ErrorCode.EPERM);
}
Acpi.Reboot();
return(ErrorCode.SUCCESS);
}
/// <summary>
/// Shuts down the computer
/// </summary>
/// <returns>The error code</returns>
public static ErrorCode Shutdown()
{
if (Tasking.CurrentTask.UID > 0)
{
return(ErrorCode.EPERM);
}
Acpi.Shutdown();
return(ErrorCode.SUCCESS);
}
/// <summary>
/// Initializes the specific x86 stuff
/// </summary>
public static void Init()
{
GDT.Init();
PIC.Remap();
IDT.Init();
IRQ.Init();
PhysicalMemoryManager.Init();
Paging.Init();
Heap.InitRealHeap();
IOApicManager.Init();
Acpi.Init();
LocalApic.InitLocalAPIC();
IOApicManager.InitIOApics();
CMOS.UpdateTime();
Time.FullTicks = Time.CalculateEpochTime();
}
/// <summary>
/// Creates an ISA IRQ redirection entry
/// </summary>
/// <param name="src">The source interrupt</param>
/// <param name="dst">The destination interrupt</param>
public static void CreateISARedirection(uint src, uint dst)
{
Acpi.ISAOverride irq = Acpi.GetISARedirection(src);
// Polarity and Trigger
ulong flags = 0;
if (irq.Polarity == 0 || irq.Polarity == 3)
{
flags |= IOApic.IOAPIC_REDIR_POLARITY_LOW;
}
else
{
flags |= IOApic.IOAPIC_REDIR_POLARITY_HIGH;
}
if (irq.Trigger == 0 || irq.Trigger == 1)
{
flags |= IOApic.IOAPIC_REDIR_TRIGGER_EDGE;
}
else
{
flags |= IOApic.IOAPIC_REDIR_TRIGGER_LEVEL;
}
// No override?
uint irqNum = (irq.GSI == 0) ? src : dst;
IOApic responsible = GetIOApicFor(irqNum);
if (responsible == null)
{
Console.Write("[IOAPIC] No IO Apic was found responsible for pin ");
Console.WriteNum((int)src);
Console.Write("->");
Console.WriteNum((int)dst);
Console.Write('\n');
return;
}
responsible.CreateRedirection(irqNum - responsible.GlobalSystemInterruptBase, 32 + dst, flags);
}
public static ulong AcpiOsGetRootPointer()
{
return((uint)Acpi.FindRSDP());
}