audk/UnixPkg/UnixBusDriverDxe/UnixBusDriver.h

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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
UnixBusDriver.h
Abstract:
This following section documents the PCD for the Unix
build. These variables are used to define the (virtual) hardware
configuration of the Unix environment
A ! can be used to seperate multiple instances in a variable. Each
instance represents a seperate hardware device.
EFI_UNIX_PHYSICAL_DISKS - maps to drives on your system
EFI_UNIX_VIRTUAL_DISKS - maps to a device emulated by a file
EFI_UNIX_FILE_SYSTEM - mouts a directory as a file system
EFI_UNIX_CONSOLE - make a logical comand line window (only one!)
EFI_UNIX_UGA - Builds UGA Windows of Width and Height
EFI_UNIX_SERIAL_PORT - maps physical serial ports
EFI_UNIX_PASS_THRU - associates a device with our PCI support
<F>ixed - Fixed disk like a hard drive.
<R>emovable - Removable media like a floppy or CD-ROM.
Read <O>nly - Write protected device.
Read <W>rite - Read write device.
<block count> - Decimal number of blocks a device supports.
<block size> - Decimal number of bytes per block.
UNIX envirnonment variable contents. '<' and '>' are not part of the variable,
they are just used to make this help more readable. There should be no
spaces between the ';'. Extra spaces will break the variable. A '!' is
used to seperate multiple devices in a variable.
EFI_UNIX_VIRTUAL_DISKS =
<F | R><O | W>;<block count>;<block size>[!...]
EFI_UNIX_PHYSICAL_DISKS =
<drive letter>:<F | R><O | W>;<block count>;<block size>[!...]
Virtual Disks: These devices use a file to emulate a hard disk or removable
media device.
Thus a 20 MB emulated hard drive would look like:
EFI_UNIX_VIRTUAL_DISKS=FW;40960;512
A 1.44MB emulated floppy with a block size of 1024 would look like:
EFI_UNIX_VIRTUAL_DISKS=RW;1440;1024
Physical Disks: These devices use UNIX to open a real device in your system
Thus a 120 MB floppy would look like:
EFI_UNIX_PHYSICAL_DISKS=B:RW;245760;512
Thus a standard CD-ROM floppy would look like:
EFI_UNIX_PHYSICAL_DISKS=Z:RO;307200;2048
EFI_UNIX_FILE_SYSTEM =
<directory path>[!...]
Mounting the two directories C:\FOO and C:\BAR would look like:
EFI_UNIX_FILE_SYSTEM=c:\foo!c:\bar
EFI_UNIX_CONSOLE =
<window title>
Declaring a text console window with the title "My EFI Console" woild look like:
EFI_UNIX_CONSOLE=My EFI Console
EFI_UNIX_UGA =
<width> <height>[!...]
Declaring a two UGA windows with resolutions of 800x600 and 1024x768 would look like:
Example : EFI_UNIX_UGA=800 600!1024 768
EFI_UNIX_SERIAL_PORT =
<port name>[!...]
Declaring two serial ports on COM1 and COM2 would look like:
Example : EFI_UNIX_SERIAL_PORT=COM1!COM2
EFI_UNIX_PASS_THROUGH =
<BaseAddress>;<Bus#>;<Device#>;<Function#>
Declaring a base address of 0xE0000000 (used for PCI Express devices)
and having NT32 talk to a device located at bus 0, device 1, function 0:
Example : EFI_UNIX_PASS_THROUGH=E000000;0;1;0
---*/
#ifndef __UNIX_BUS_DRIVER_H__
#define __UNIX_BUS_DRIVER_H__
#include "PiDxe.h"
#include "UnixDxe.h"
#include <Protocol/Pcd.h>
#include <Protocol/DevicePath.h>
#include <Library/DebugLib.h>
#include <Library/BaseLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiLib.h>
#include <Library/PcdLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/DevicePathLib.h>
extern EFI_DRIVER_BINDING_PROTOCOL gUnixBusDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL gUnixBusDriverComponentName;
//
// Unix Bus Driver Global Variables
//
extern EFI_DRIVER_BINDING_PROTOCOL gUnixBusDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL gUnixBusDriverComponentName;
//
// Unix Bus Controller Structure
//
#define UNIX_BUS_DEVICE_SIGNATURE EFI_SIGNATURE_32 ('L', 'X', 'B', 'D')
typedef struct {
UINT64 Signature;
EFI_UNICODE_STRING_TABLE *ControllerNameTable;
} UNIX_BUS_DEVICE;
//
// Unix Child Device Controller Structure
//
#define UNIX_IO_DEVICE_SIGNATURE EFI_SIGNATURE_32 ('L', 'X', 'V', 'D')
typedef struct {
UINT64 Signature;
EFI_HANDLE Handle;
EFI_UNIX_IO_PROTOCOL UnixIo;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
//
// Private data about the parent
//
EFI_HANDLE ControllerHandle;
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
EFI_UNICODE_STRING_TABLE *ControllerNameTable;
} UNIX_IO_DEVICE;
#define UNIX_IO_DEVICE_FROM_THIS(a) \
CR(a, UNIX_IO_DEVICE, UnixIo, UNIX_IO_DEVICE_SIGNATURE)
//
// This is the largest env variable we can parse
//
#define MAX_UNIX_ENVIRNMENT_VARIABLE_LENGTH 512
typedef struct {
UINTN Token;
EFI_GUID *DevicePathGuid;
} UNIX_PCD_ENTRY;
typedef struct {
VENDOR_DEVICE_PATH VendorDevicePath;
UINT32 Instance;
} UNIX_VENDOR_DEVICE_PATH_NODE;
EFI_STATUS
EFIAPI
CpuIoInitialize (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
Routine Description:
TODO: Add function description
Arguments:
ImageHandle - TODO: add argument description
SystemTable - TODO: add argument description
Returns:
TODO: add return values
--*/
;
//
// Driver Binding Protocol function prototypes
//
EFI_STATUS
EFIAPI
UnixBusDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Handle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
TODO: Add function description
Arguments:
This - TODO: add argument description
Handle - TODO: add argument description
RemainingDevicePath - TODO: add argument description
Returns:
TODO: add return values
--*/
;
EFI_STATUS
EFIAPI
UnixBusDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ParentHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
TODO: Add function description
Arguments:
This - TODO: add argument description
ParentHandle - TODO: add argument description
RemainingDevicePath - TODO: add argument description
Returns:
TODO: add return values
--*/
;
EFI_STATUS
EFIAPI
UnixBusDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Handle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
/*++
Routine Description:
TODO: Add function description
Arguments:
This - TODO: add argument description
Handle - TODO: add argument description
NumberOfChildren - TODO: add argument description
ChildHandleBuffer - TODO: add argument description
Returns:
TODO: add return values
--*/
;
//
// Unix Bus Driver private worker functions
//
EFI_DEVICE_PATH_PROTOCOL *
UnixBusCreateDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL *RootDevicePath,
IN EFI_GUID *Guid,
IN UINT16 InstanceNumber
)
/*++
Routine Description:
TODO: Add function description
Arguments:
RootDevicePath - TODO: add argument description
Guid - TODO: add argument description
InstanceNumber - TODO: add argument description
Returns:
TODO: add return values
--*/
;
#endif