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