X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=IntelFrameworkModulePkg%2FCsm%2FLegacyBiosDxe%2FLegacyBiosInterface.h;h=d60851a42cff65f82fc075d0d58306ff0f094f4c;hb=0934a6058115f8d4da946656605831cd5131ed4a;hp=8ab26fe3262515a9b6fef292133a9fda92793e59;hpb=f767f99009995ede5f7ae808d75bcf862b692485;p=mirror_edk2.git

diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h
index 8ab26fe326..d60851a42c 100644
--- a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h
+++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
 
 This program and the accompanying materials
 are licensed and made available under the terms and conditions
@@ -18,12 +18,14 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 
 
 #include <FrameworkDxe.h>
+#include <IndustryStandard/Pci.h>
 
 #include <Guid/SmBios.h>
 #include <Guid/Acpi.h>
 #include <Guid/DxeServices.h>
 #include <Guid/LegacyBios.h>
 #include <Guid/StatusCodeDataTypeId.h>
+#include <Guid/ImageAuthentication.h>
 
 #include <Protocol/BlockIo.h>
 #include <Protocol/LoadedImage.h>
@@ -93,6 +95,14 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define PROTECTED_MODE_BASE_VECTOR_MASTER  0x68
 #define PROTECTED_MODE_BASE_VECTOR_SLAVE   0x70
 
+//
+// When we call CSM16 functions, some CSM16 use es:[offset + 0xabcd] to get data passed from CSM32, 
+// offset + 0xabcd could overflow which exceeds 0xFFFF which is invalid in real mode. 
+// So this will keep offset as small as possible to avoid offset overflow in real mode. 
+//
+#define NORMALIZE_EFI_SEGMENT(_Adr)      (UINT16) (((UINTN) (_Adr)) >> 4)
+#define NORMALIZE_EFI_OFFSET(_Adr)       (UINT16) (((UINT16) ((UINTN) (_Adr))) & 0xf)
+
 //
 // Trace defines
 //
@@ -123,6 +133,10 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define LEGACY_PCI_TRACE_00E LEGACY_PCI_TRACE + 0x0E
 #define LEGACY_PCI_TRACE_00F LEGACY_PCI_TRACE + 0x0F
 
+#define BDA_VIDEO_MODE      0x49
+
+#define IDE_PI_REGISTER_PNE     BIT0
+#define IDE_PI_REGISTER_SNE     BIT2
 
 typedef struct {
   UINTN   PciSegment;
@@ -158,11 +172,6 @@ typedef struct {
 
 #endif
 
-//
-// Miscellaneous numbers
-//
-#define PMM_MEMORY_SIZE         0x400000  // 4 MB
-
 #pragma pack(1)
 
 //
@@ -494,8 +503,6 @@ extern BBS_TABLE           *mBbsTable;
 
 extern EFI_GENERIC_MEMORY_TEST_PROTOCOL *gGenMemoryTest;
 
-extern UINTN               mEndOpromShadowAddress;
-
 #define PORT_70 0x70
 #define PORT_71 0x71
 
@@ -1513,4 +1520,20 @@ InternalLegacyBiosFarCall (
   IN  UINTN                           StackSize
   );
 
+/**
+  Load a legacy PC-AT OpROM for VGA controller.
+
+  @param  Private                Driver private data.
+
+  @retval EFI_SUCCESS            Legacy ROM successfully installed for this device.
+  @retval EFI_DEVICE_ERROR       No VGA device handle found, or native EFI video
+                                 driver cannot be successfully disconnected, or VGA
+                                 thunk driver cannot be successfully connected.
+
+**/
+EFI_STATUS
+LegacyBiosInstallVgaRom (
+  IN  LEGACY_BIOS_INSTANCE            *Private
+  );
+
 #endif