+++ /dev/null
-/** @file\r
- API between 16-bit Legacy BIOS and EFI\r
-\r
- We need to figure out what the 16-bit code is going to use to\r
- represent these data structures. Is a pointer SEG:OFF or 32-bit...\r
-\r
- Copyright (c) 2006, Intel Corporation \r
- All rights reserved. This program and the accompanying materials \r
- are licensed and made available under the terms and conditions of the BSD License \r
- which accompanies this distribution. The full text of the license may be found at \r
- http://opensource.org/licenses/bsd-license.php \r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-\r
- Module Name: Legacy16.h\r
-\r
- @par Revision Reference:\r
- These definitions are from Compatibility Support Module Spec Version 0.96.\r
-\r
-**/\r
-\r
-#ifndef LEGACY_16_H_\r
-#define LEGACY_16_H_\r
-\r
-#define EFI_TO_LEGACY_MAJOR_VERSION 0x02\r
-#define EFI_TO_LEGACY_MINOR_VERSION 0x00\r
-\r
-#pragma pack(1)\r
-//\r
-// EFI Legacy to Legacy16 data\r
-// EFI_COMPATIBILITY16_TABLE has been moved to LegacyBios protocol defn file.\r
-//\r
-typedef struct {\r
- //\r
- // Memory map used to start up Legacy16 code\r
- //\r
- UINT32 BiosLessThan1MB;\r
- UINT32 HiPmmMemory;\r
- UINT32 HiPmmMemorySizeInBytes;\r
-\r
- UINT16 ReverseThunkCallSegment;\r
- UINT16 ReverseThunkCallOffset;\r
- UINT32 NumberE820Entries;\r
- UINT32 OsMemoryAbove1Mb;\r
- UINT32 ThunkStart;\r
- UINT32 ThunkSizeInBytes;\r
- UINT32 LowPmmMemory;\r
- UINT32 LowPmmMemorySizeInBytes;\r
-} EFI_TO_COMPATIBILITY16_INIT_TABLE;\r
-\r
-#pragma pack()\r
-//\r
-// Legacy16 Call types\r
-//\r
-typedef enum {\r
- Legacy16InitializeYourself = 0x0000,\r
- Legacy16UpdateBbs = 0x0001,\r
- Legacy16PrepareToBoot = 0x0002,\r
- Legacy16Boot = 0x0003,\r
- Legacy16RetrieveLastBootDevice= 0x0004,\r
- Legacy16DispatchOprom = 0x0005,\r
- Legacy16GetTableAddress = 0x0006,\r
- Legacy16SetKeyboardLeds = 0x0007,\r
- Legacy16InstallPciHandler = 0x0008,\r
-} EFI_COMPATIBILITY_FUNCTIONS;\r
-\r
-#define F0000Region 0x01\r
-#define E0000Region 0x02\r
-//\r
-// Legacy16 call prototypes\r
-// Input: AX = EFI_COMPATIBILITY16_FUNCTIONS for all functions.\r
-// Output: AX = Return status for all functions. It follows EFI error\r
-// codes.\r
-//\r
-// Legacy16InitializeYourself\r
-// Description: This is the first call to 16-bit code. It allows the\r
-// 16-bit to perform any internal initialization.\r
-// Input: ES:BX pointer to EFI_TO_COMPATIBILITY16_INIT_TABLE\r
-// Output:\r
-// Legacy16UpdateBbs\r
-// Description: The 16-bit code updates the BBS table for non-compliant\r
-// devices.\r
-// Input: ES:BX pointer to EFI_TO_COMPATIBILITY16_BOOT_TABLE\r
-// Output:\r
-// Legacy16PrepareToBoot\r
-// Description: This is the last call to 16-bit code where 0xE0000 -0xFFFFF\r
-// is read/write. 16-bit code does any final clean up.\r
-// Input: ES:BX pointer to EFI_TO_COMPATIBILITY16_BOOT_TABLE\r
-// Output:\r
-// Legacy16Boot\r
-// Description: Do INT19.\r
-// Input:\r
-// Output:\r
-// Legacy16RetrieveLastBootDevice\r
-// Description: Return the priority number of the device that booted.\r
-// Input:\r
-// Output: BX = priority number of the last attempted boot device.\r
-// Legacy16DispatchOprom\r
-// Description: Pass control to the specified OPROM. Allows the 16-bit\r
-// code to rehook INT 13,18 and/or 19 from non-BBS\r
-// compliant devices.\r
-// Input: ES:DI = Segment:Offset of PnPInstallationCheck\r
-// SI = OPROM segment. Offset assumed to be 3.\r
-// BH = PCI bus number.\r
-// BL = PCI device * 8 | PCI function.\r
-// Output: BX = Number of BBS non-compliant drives detected. Return\r
-// zero for BBS compliant devices.\r
-// Legacy16GetTableAddress\r
-// Description: Allocate an area in the 0xE0000-0xFFFFF region.\r
-// Input: BX = Allocation region.\r
-// 0x0 = Any region\r
-// Bit 0 = 0xF0000 region\r
-// Bit 1 = 0xE0000 region\r
-// Multiple bits can be set.\r
-// CX = Length in bytes requested\r
-// DX = Required address alignment\r
-// Bit mapped. First non-zero bit from right to left is\r
-// alignment.\r
-// Output: DS:BX is assigned region.\r
-// AX = EFI_OUT_OF_RESOURCES if request cannot be granted.\r
-// Legacy16SetKeyboardLeds\r
-// Description: Perform any special action when keyboard LEDS change.\r
-// Other code performs the LED change and updates standard\r
-// BDA locations. This is for non-standard operations.\r
-// Input: CL = LED status. 1 = set.\r
-// Bit 0 = Scroll lock\r
-// Bit 1 = Num lock\r
-// Bit 2 = Caps lock\r
-// Output:\r
-// Legacy16InstallPciHandler\r
-// Description: Provides 16-bit code a hook to establish an interrupt\r
-// handler for any PCI device requiring a PCI interrupt\r
-// but having no OPROM. This is called before interrupt\r
-// is assigned. 8259 will be disabled(even if sharded)\r
-// and PCI Interrupt Line unprogrammed. Other code will\r
-// program 8259 and PCI Interrupt Line.\r
-// Input: ES:BX Pointer to EFI_LEGACY_INSTALL_PCI_HANDLER strcture\r
-// Output:\r
-//\r
-typedef UINT8 SERIAL_MODE;\r
-typedef UINT8 PARALLEL_MODE;\r
-\r
-#pragma pack(1)\r
-\r
-#define DEVICE_SERIAL_MODE_NORMAL 0x00\r
-#define DEVICE_SERIAL_MODE_IRDA 0x01\r
-#define DEVICE_SERIAL_MODE_ASK_IR 0x02\r
-#define DEVICE_SERIAL_MODE_DUPLEX_HALF 0x00\r
-#define DEVICE_SERIAL_MODE_DUPLEX_FULL 0x10\r
-\r
-#define DEVICE_PARALLEL_MODE_MODE_OUTPUT_ONLY 0x00\r
-#define DEVICE_PARALLEL_MODE_MODE_BIDIRECTIONAL 0x01\r
-#define DEVICE_PARALLEL_MODE_MODE_EPP 0x02\r
-#define DEVICE_PARALLEL_MODE_MODE_ECP 0x03\r
-\r
-typedef struct {\r
- UINT16 Address;\r
- UINT8 Irq;\r
- SERIAL_MODE Mode;\r
-} DEVICE_PRODUCER_SERIAL;\r
-\r
-typedef struct {\r
- UINT16 Address;\r
- UINT8 Irq;\r
- UINT8 Dma;\r
- PARALLEL_MODE Mode;\r
-} DEVICE_PRODUCER_PARALLEL;\r
-\r
-typedef struct {\r
- UINT16 Address;\r
- UINT8 Irq;\r
- UINT8 Dma;\r
- UINT8 NumberOfFloppy;\r
-} DEVICE_PRODUCER_FLOPPY;\r
-\r
-typedef struct {\r
- UINT32 A20Kybd : 1;\r
- UINT32 A20Port90 : 1;\r
- UINT32 Reserved : 30;\r
-} LEGACY_DEVICE_FLAGS;\r
-\r
-typedef struct {\r
- DEVICE_PRODUCER_SERIAL Serial[4];\r
- DEVICE_PRODUCER_PARALLEL Parallel[3];\r
- DEVICE_PRODUCER_FLOPPY Floppy;\r
- UINT8 MousePresent;\r
- LEGACY_DEVICE_FLAGS Flags;\r
-} DEVICE_PRODUCER_DATA_HEADER;\r
-//\r
-// SMM Table definitions\r
-// SMM table has a header that provides the number of entries. Following\r
-// the header is a variable length amount of data.\r
-//\r
-\r
-#define STANDARD_IO 0x00\r
-#define STANDARD_MEMORY 0x01\r
-\r
-#define PORT_SIZE_8 0x00\r
-#define PORT_SIZE_16 0x01\r
-#define PORT_SIZE_32 0x02\r
-#define PORT_SIZE_64 0x03\r
-\r
-#define DATA_SIZE_8 0x00\r
-#define DATA_SIZE_16 0x01\r
-#define DATA_SIZE_32 0x02\r
-#define DATA_SIZE_64 0x03\r
-\r
-typedef struct {\r
- UINT16 Type : 3;\r
- UINT16 PortGranularity : 3;\r
- UINT16 DataGranularity : 3;\r
- UINT16 Reserved : 7;\r
-} SMM_ATTRIBUTES;\r
-\r
-#define INT15_D042 0x0000\r
-#define GET_USB_BOOT_INFO 0x0001\r
-#define DMI_PNP_50_57 0x0002\r
-\r
-#define STANDARD_OWNER 0x0\r
-#define OEM_OWNER 0x1\r
-\r
-typedef struct {\r
- UINT16 Function : 15;\r
- UINT16 Owner : 1;\r
-} SMM_FUNCTION;\r
-\r
-typedef struct {\r
- SMM_ATTRIBUTES SmmAttributes;\r
- SMM_FUNCTION SmmFunction;\r
- //\r
- // Data size depends upon SmmAttributes and ranges from 2 bytes to\r
- // 16 bytes\r
- //\r
- // bugbug how to do variable length Data\r
- //\r
- UINT8 SmmPort;\r
- UINT8 SmmData;\r
-} SMM_ENTRY;\r
-\r
-typedef struct {\r
- UINT16 NumSmmEntries;\r
- SMM_ENTRY SmmEntry;\r
-} SMM_TABLE;\r
-\r
-//\r
-// If MAX_IDE_CONTROLLER changes value 16-bit legacy code needs to change\r
-//\r
-#define MAX_IDE_CONTROLLER 8\r
-\r
-typedef struct {\r
- UINT16 MajorVersion;\r
- UINT16 MinorVersion;\r
-\r
- UINT32 AcpiTable; // 4 GB range\r
- UINT32 SmbiosTable; // 4 GB range\r
- UINT32 SmbiosTableLength;\r
-\r
- //\r
- // Legacy SIO state\r
- //\r
- DEVICE_PRODUCER_DATA_HEADER SioData;\r
-\r
- UINT16 DevicePathType;\r
- UINT16 PciIrqMask;\r
- UINT32 NumberE820Entries;\r
- //\r
- // Controller & Drive Identify[2] per controller information\r
- //\r
- HDD_INFO HddInfo[MAX_IDE_CONTROLLER];\r
- UINT32 NumberBbsEntries;\r
- UINT32 BbsTable;\r
- UINT32 SmmTable;\r
- UINT32 OsMemoryAbove1Mb;\r
- UINT32 UnconventionalDeviceTable;\r
-} EFI_TO_COMPATIBILITY16_BOOT_TABLE;\r
-\r
-typedef struct {\r
- UINT8 PciBus;\r
- UINT8 PciDeviceFun;\r
- UINT8 PciSegment;\r
- UINT8 PciClass;\r
- UINT8 PciSubclass;\r
- UINT8 PciInterface;\r
- UINT8 PrimaryIrq;\r
- UINT8 PrimaryReserved;\r
- UINT16 PrimaryControl;\r
- UINT16 PrimaryBase;\r
- UINT16 PrimaryBusMaster;\r
- UINT8 SecondaryIrq;\r
- UINT8 SecondaryReserved;\r
- UINT16 SecondaryControl;\r
- UINT16 SecondaryBase;\r
- UINT16 SecondaryBusMaster;\r
-} EFI_LEGACY_INSTALL_PCI_HANDLER;\r
-\r
-typedef struct {\r
- UINT16 PnPInstallationCheckSegment;\r
- UINT16 PnPInstallationCheckOffset;\r
- UINT16 OpromSegment;\r
- UINT8 PciBus;\r
- UINT8 PciDeviceFunction;\r
- UINT8 NumberBbsEntries;\r
- VOID *BbsTablePointer;\r
-\r
-} EFI_DISPATCH_OPROM_TABLE;\r
-\r
-#pragma pack()\r
-\r
-#endif\r
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