arch/all-pc/battclock/battclock_init.c

   1 #include <aros/debug.h>
   2 #include <aros/symbolsets.h>
   3 #include <proto/acpica.h>
   4 #include <proto/exec.h>
   5
   6 #include "battclock_intern.h"
   7 #include "cmos.h"
   8
   9 /* auto init */
  10 static int BattClock_Init(struct BattClockBase *BattClockBase)
  11 {
  12     struct Library *ACPICABase;
  13     InitSemaphore(&BattClockBase->sem);
  14     BattClockBase->century = CENTURY;   /* Default offset */
  15
  16     if ((ACPICABase = OpenLibrary("acpica.library",0)))
  17     {
  18         ACPI_TABLE_FADT *fadt;
  19         ACPI_STATUS err;
  20
  21         err = AcpiGetTable("FACP", 1, (ACPI_TABLE_HEADER **)&fadt);
  22         if (err == AE_OK) {
  23             if ((fadt->Header.Length >= offsetof(ACPI_TABLE_FADT, Century)) &&
  24                 fadt->Century)
  25             {
  26                 D(bug("[BattClock] Got RTC century offset 0x%02X from ACPI\n", fadt->Century));
  27                 BattClockBase->century = fadt->Century;
  28             }
  29         }
  30     }
  31
  32     return 1;
  33 }
  34
  35 ADD2INITLIB(BattClock_Init, 0)