Function AddHDEF

rEFIt_UEFI/Platform/FixBiosDsdt.cpp:3744–3859

}

UINT32 AddHDEF (UINT8 *dsdt, UINT32 len, const XString8& OSVersion)
{
  UINT32  i, k;
  UINT32 PCIADR, PCISIZE = 0;
  INT32 sizeoffset;
  UINT32 HDAADR = 0, Size;
  AML_CHUNK* root;
//  AML_CHUNK* met, *met2;
  AML_CHUNK* device;
//  AML_CHUNK* pack;
  CHAR8 *hdef;

  PCIADR = GetPciDevice(dsdt, len);
  if (PCIADR) {
    PCISIZE = get_size(dsdt, PCIADR);
  }
  if (!PCISIZE) return len; //what is the bad DSDT ?!
  DBG("Start HDA Fix\n");
//  len = DeleteDevice("AZAL", dsdt, len);

  // HDA Address
  for (i=0x20; len >= 10 && i < len - 10; i++) {
    if (HDAADR1 != 0x00000000 && HDAFIX &&
        CmpAdr(dsdt, i, HDAADR1)) {
      HDAADR = devFind(dsdt, i);
      if (!HDAADR) {
        continue;
      }

 //     BridgeSize = get_size(dsdt, HDAADR);
      device_name[4] = (__typeof_am__(device_name[4]))AllocateZeroPool(5);
      CopyMem(device_name[4], dsdt+i, 4);
      DBG("found HDA device NAME(_ADR,0x%08X) And Name is %s\n",
          HDAADR1, device_name[4]);
      ReplaceName(dsdt, len, device_name[4], "HDEF");
      HDAFIX = FALSE;
      break;
    } // End HDA
  }

  if (HDAADR) { // bridge or device
    i = HDAADR;
    Size = get_size(dsdt, i);
    k = FindMethod(dsdt + i, Size, "_DSM");
    if (k != 0) {
      k += i;
        Size = get_size(dsdt, k);
        sizeoffset = - 1 - Size;
        len = move_data(k - 1, dsdt, len, sizeoffset);
        len = CorrectOuters(dsdt, len, k - 2, sizeoffset);
        DBG("_DSM in HDA already exists, dropped\n");
    }
  }

  root = aml_create_node(NULL);
  if (HDAFIX) {
      MsgLog("Start Add Device HDEF\n");
      device = aml_add_device(root, "HDEF");