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updating comments mostly. also added some new lib functions.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9710 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jcarsey
2010-01-11 21:49:04 +00:00
parent 70b689905c
commit b3011f4041
15 changed files with 730 additions and 321 deletions
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405
ShellPkg/Include/Protocol/EfiShellEnvironment2.h
View File

@ -1,36 +1,31 @@
/** @file
Defines for EFI shell environment 2 ported to EDK II build environment. (no spec)
Copyright (c) 2005 - 2009, Intel Corporation<BR>
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
Copyright (c) 2005 - 2010, Intel Corporation<BR>
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.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _SHELLENV2_H_
#define _SHELLENV2_H_
#include <Protocol/SimpleTextIn.h>
#include <Protocol/SimpleTextOut.h>
#include <Protocol/EfiShellInterface.h>
#if !defined (_SHELL_ENVIRONMENT_2_PROTOCOL_H_)
#define _SHELL_ENVIRONMENT_2_PROTOCOL_H_
#define DEFAULT_INIT_ROW 1
#define DEFAULT_AUTO_LF FALSE
/**
This function is a prototype for a function that dumps information on a protocol
to a given location. The location is dependant on the implementation. This is
used when programatically adding shell commands.
@param Handle the handle the protocol is on
@param Interface the interface to the protocol
@param Handle The handle the protocol is on.
@param Interface The interface to the protocol.
**/
typedef
@ -68,7 +63,7 @@ EFI_STATUS
@param Str Pointer to pointer to string to display for help.
@retval EFI_SUCCESS Phe help string is in the parameter Str.
@retval EFI_SUCCESS The help string is in the parameter Str.
**/
typedef
@ -101,7 +96,7 @@ typedef struct {
#define SHELL_FILE_ARG_SIGNATURE SIGNATURE_32 ('g', 'r', 'a', 'f')
/**
* GUID for the shell environment2 and shell environment
GUID for the shell environment2 and shell environment.
**/
#define SHELL_ENVIRONMENT_PROTOCOL_GUID \
{ \
@ -109,7 +104,7 @@ typedef struct {
}
/**
* GUID for the shell environment2 extension (main GUID same as shell environment).
GUID for the shell environment2 extension (main GUID above).
**/
#define EFI_SE_EXT_SIGNATURE_GUID \
{ \
@ -127,7 +122,7 @@ typedef struct {
encountered directly to the screen.
@param ParentImageHandle Handle of image executing this operation.
@param CommandLine string command line to execute.
@param CommandLine The string command line to execute.
@param DebugOutput TRUE indicates that errors should be printed directly.
FALSE supresses error messages.
@ -147,13 +142,13 @@ EFI_STATUS
);
/**
this function returns a shell environment variable value.
This function returns a shell environment variable value.
@param Name pointer to the string with the shell environment
variables name
@param Name Pointer to the string with the shell environment
variable name.
@retval NULL the shell environment variable's value could not be found
@retval !NULL the value of the shell environment variable Name
@retval NULL The shell environment variable's value could not be found.
@retval !NULL The value of the shell environment variable Name.
**/
typedef
@ -163,13 +158,13 @@ CHAR16 *
);
/**
this function returns a shell environment map value.
This function returns a shell environment map value.
@param Name pointer to the string with the shell environment
map name
@param Name Pointer to the string with the shell environment
map name.
@retval NULL the shell environment map's value could not be found
@retval !NULL the value of the shell environment map Name
@retval NULL The shell environment map's value could not be found.
@retval !NULL The value of the shell environment map Name.
**/
typedef
@ -184,12 +179,12 @@ CHAR16 *
This will allocate all required memory, put the new command on the command
list in the correct location.
@param Handler the handler function to call when the command gets called
@param CmdStr The command name
@param GetLineHelp function to call of get help for this command
@param Handler The handler function to call when the command gets called.
@param CmdStr The command name.
@param GetLineHelp Function to call of get help for this command.
@retval EFI_SUCCESS the command is now part of the command list
@retval EFI_OUT_OF_RESOURCES a memory allocation failed.
@retval EFI_SUCCESS The command is now part of the command list.
@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
@sa SHELLENV_INTERNAL_COMMAND
@sa SHELLCMD_GET_LINE_HELP
**/
@ -208,13 +203,13 @@ EFI_STATUS
This will get the current protocol info and add the new info or update existing info
and then resave the info.
@param SaveId save this change as an EFI variable
@param Protocol the protocol's GUID
@param SaveId Save this change as an EFI variable.
@param Protocol The protocol's GUID.
@param DumpToken The function pointer to dump token function or
NULL
NULL.
@param DumpInfo The function pointer to dump infomation function
or NULL
@param IdString The english name of the protocol
or NULL.
@param IdString The english name of the protocol.
**/
typedef
VOID
@ -226,17 +221,17 @@ VOID
);
/**
this function finds a protocol handle by a GUID.
This function finds a protocol handle by a GUID.
This function will check for already known protocols by GUID and if one is
found it will return the name of that protocol. if no name is found and
found it will return the name of that protocol. If no name is found and
GenId is TRUE it will generate ths string.
@param Protocol the GUID of the protocol to look for.
@param GenId whether to generate a name string if its not found.
@param Protocol The GUID of the protocol to look for.
@param GenId Whether to generate a name string if its not found.
@return !NULL the Name of the protocol.
@retval NULL the Name was not found and GenId was not TRUE.
@return !NULL The Name of the protocol.
@retval NULL The Name was not found and GenId was not TRUE.
**/
typedef
CHAR16*
@ -246,15 +241,15 @@ CHAR16*
);
/**
this function returns the current directory on a given device
This function returns the current directory on a given device.
If DeviceName is specified, then return the current shell directory on that
device. If DeviceName is NULL, then return the current directory on the
current device. The caller us responsible to free the returned string when
no londer required.
@param DeviceName the name of the device to get the current
directory on or NULL for current device
@param DeviceName The name of the device to get the current
directory on or NULL for current device.
@return The current directory on the current or specified device.
@ -266,23 +261,23 @@ CHAR16*
);
/**
this function will open a group of files that match the Arg path, including
support for wildcard characters ('?' and '*') in the Arg path. if there are
This function will open a group of files that match the Arg path, including
support for wildcard characters ('?' and '*') in the Arg path. If there are
any wildcard characters in the path this function will find any and all files
that match the wildcards. the return is a double linked list based on the
LIST_ENTRY linked list structure. use this in conjunction with the
that match the wildcards. The return is a double linked list based on the
LIST_ENTRY linked list structure. Use this in conjunction with the
SHELL_FILE_ARG_SIGNATURE to get the SHELL_FILE_ARG structures that are returned.
The memory allocated by the callee for this list is freed by making a call to
SHELLENV_FREE_FILE_LIST.
@param Arg pointer Path to files to open
@param ListHead pointer to allocated and initialized list head
@param Arg Pointer Path to files to open.
@param ListHead Pointer to allocated and initialized list head
upon which to append all the opened file structures.
@retval EFI_SUCCESS 1 or more files was opened and a struct of each file's
information was appended to ListHead.
@retval EFI_OUT_OF_RESOURCES a memory allocation failed.
@retval EFI_NOT_FOUND no matching files could be found.
@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
@retval EFI_NOT_FOUND No matching files could be found.
@sa SHELLENV_FREE_FILE_LIST
**/typedef
EFI_STATUS
@ -292,7 +287,7 @@ EFI_STATUS
);
/**
this frees all of the nodes under the ListHead, but not ListHead itself.
This frees all of the nodes under the ListHead, but not ListHead itself.
@param ListHead Pointer to list to free all nodes of.
@ -305,14 +300,14 @@ EFI_STATUS
);
/**
this function creates a new instance of the ShellInterface protocol for use on
This function creates a new instance of the ShellInterface protocol for use on
the ImageHandle.
This function is for internal shell usage. this will allocate and then populate
EFI_SHELL_INTERFACE protocol. it is the caller's responsibility to free the
This function is for internal shell usage. This will allocate and then populate
EFI_SHELL_INTERFACE protocol. It is the caller's responsibility to free the
memory.
@param ImageHandle the handle which will use the new ShellInterface
@param ImageHandle The handle which will use the new ShellInterface
protocol.
@return the newly allocated shell interface protocol.
@ -325,14 +320,14 @@ EFI_SHELL_INTERFACE*
);
/**
this function determins whether a script file is currently being processed.
This function determins whether a script file is currently being processed.
a script file (.nsh file) can contain a series of commands and this is useful to
A script file (.nsh file) can contain a series of commands and this is useful to
know for some shell commands whether they are being run manually or as part of a
script.
@retval TRUE A script file is being processed
@return FALSE A script file is not being processed
@retval TRUE A script file is being processed.
@retval FALSE A script file is not being processed.
**/
typedef
BOOLEAN
@ -354,12 +349,12 @@ VOID
This function enables the page break mode.
This mode causes the output to pause after each complete screen to enable a
user to more easily read it. if AutoWrap is TRUE then rows with too many
characters will be chopped and divided into 2 rows. if FALSE then rows with
user to more easily read it. If AutoWrap is TRUE then rows with too many
characters will be chopped and divided into 2 rows. If FALSE then rows with
too many characters may not be fully visible to the user on the screen.
@param StartRow the row number to start this on.
@param AutoWrap whether to auto wrap rows that are
@param StartRow The row number to start this on.
@param AutoWrap Whether to auto wrap rows that are too long.
**/
typedef
VOID
@ -371,7 +366,7 @@ VOID
/**
This function disables the page break mode.
disabling this causes the output to print out exactly as coded with no breaks
Tisabling this causes the output to print out exactly as coded with no breaks
for readability.
**/
typedef
@ -383,8 +378,8 @@ VOID
/**
Get the status of the page break output mode.
@retval FALSE page break output mode is not enabled
@retval TRUE page break output mode is enabled
@retval FALSE Page break output mode is not enabled.
@retval TRUE Page break output mode is enabled.
**/
typedef
BOOLEAN
@ -393,7 +388,7 @@ BOOLEAN
);
/**
this function sets the keys to filter for for the console in. the valid
This function sets the keys to filter for for the console in. The valid
values to set are:
#define EFI_OUTPUT_SCROLL 0x00000001
@ -409,9 +404,9 @@ VOID
);
/**
this function gets the keys to filter for for the console in. the valid
values to get are:
This function gets the keys to filter for for the console in.
The valid values to get are:
#define EFI_OUTPUT_SCROLL 0x00000001
#define EFI_OUTPUT_PAUSE 0x00000002
#define EFI_EXECUTION_BREAK 0x00000004
@ -425,14 +420,14 @@ UINT32
);
/**
this function determins if the shell application should break.
This function determins if the shell application should break.
This is used to inform a shell application that a break condition has been
initiated. long loops should check this to prevent delays to the break.
initiated. Long loops should check this to prevent delays to the break.
@retval TRUE a break has been signaled. the application
@retval TRUE A break has been signaled. the application
should exit with EFI_ABORTED as soon as possible.
@retval FALSE continue as normal.
@retval FALSE Continue as normal.
**/
typedef
BOOLEAN
@ -460,10 +455,10 @@ VOID
);
/**
this function determins if the caller is running under the root shell.
This function determins if the caller is running under the root shell.
@retval TRUE The caller is running under the root shell
@retval FALSE The caller is not running under the root shell
@retval TRUE The caller is running under the root shell.
@retval FALSE The caller is not running under the root shell.
**/
typedef
@ -475,14 +470,14 @@ BOOLEAN
/**
Close the console proxy to restore the original console.
This is an internal shell function to handle shell cascading. it restores the
This is an internal shell function to handle shell cascading. It restores the
original set of console protocols.
@param ConInHandle The handle of ConIn.
@param ConIn pointer to the location to return the pointer to
@param ConIn Pointer to the location to return the pointer to
the original console input.
@param ConOutHandle The handle of ConOut
@param ConOut pointer to the location to return the pointer to
@param ConOut Pointer to the location to return the pointer to
the original console output.
**/
typedef
@ -509,19 +504,19 @@ VOID
);
/**
this is an internal shell function to enumerate the handle database.
This is an internal shell function to enumerate the handle database.
this function gets the next handle in the handle database. if no handles are
found EFI_NOT_FOUND is returned. if the previous Handle was the last handle
This function gets the next handle in the handle database. If no handles are
found EFI_NOT_FOUND is returned. If the previous Handle was the last handle
it is set to NULL before returning.
this must be called after INIT_HANDLE_ENUMERATOR and before CLOSE_HANDLE_ENUMERATOR.
This must be called after INIT_HANDLE_ENUMERATOR and before CLOSE_HANDLE_ENUMERATOR.
@param Handle pointer to pointer to Handle. will be set
@param Handle Pointer to pointer to Handle. Will be set
on a sucessful return.
@retval EFI_SUCCESS the next handle in the handle database is *Handle
@retval EFI_NOT_FOUND there is not another handle.
@retval EFI_SUCCESS The next handle in the handle database is *Handle.
@retval EFI_NOT_FOUND There is not another handle.
**/
typedef
EFI_STATUS
@ -530,13 +525,13 @@ EFI_STATUS
);
/**
this is an internal shell function to enumerate the handle database.
This is an internal shell function to enumerate the handle database.
this function skips the next SkipNum handles in the handle database. If there
This function skips the next SkipNum handles in the handle database. If there
are not enough handles left to skip that many EFI_ACCESS_DENIED is returned and
no skip is performed.
this must be called after INIT_HANDLE_ENUMERATOR and before CLOSE_HANDLE_ENUMERATOR.
This must be called after INIT_HANDLE_ENUMERATOR and before CLOSE_HANDLE_ENUMERATOR.
@param SkipNum how many handles to skip
@ -550,16 +545,16 @@ EFI_STATUS
);
/**
this is an internal shell function to enumerate the handle database.
This is an internal shell function to enumerate the handle database.
this function resets the the handle database so that NEXT_HANDLE and SKIP_HANDLE
This function resets the the handle database so that NEXT_HANDLE and SKIP_HANDLE
will start from EnumIndex on the next call.
this must be called after INIT_HANDLE_ENUMERATOR and before CLOSE_HANDLE_ENUMERATOR.
This must be called after INIT_HANDLE_ENUMERATOR and before CLOSE_HANDLE_ENUMERATOR.
@param EnumIndex where to start.
@param EnumIndex Where to start.
@retval the number of handles either read out or skipped before this reset.
@return the number of handles either read out or skipped before this reset.
**/
typedef
UINTN
@ -568,12 +563,12 @@ UINTN
);
/**
this is an internal shell function to enumerate the handle database.
This is an internal shell function to enumerate the handle database.
this must be called after INIT_HANDLE_ENUMERATOR.
This must be called after INIT_HANDLE_ENUMERATOR.
this function releases all memory and resources associated with the handle database.
after this no other handle enumerator functions except INIT_HANDLE_ENUMERATOR will
This function releases all memory and resources associated with the handle database.
Tfter this no other handle enumerator functions except INIT_HANDLE_ENUMERATOR will
function properly.
**/
typedef
@ -583,13 +578,13 @@ VOID
);
/**
this is an internal shell function to enumerate the handle database.
This is an internal shell function to enumerate the handle database.
this function returns the number of handles in the handle database.
This function returns the number of handles in the handle database.
this must be called after INIT_HANDLE_ENUMERATOR and before CLOSE_HANDLE_ENUMERATOR.
This must be called after INIT_HANDLE_ENUMERATOR and before CLOSE_HANDLE_ENUMERATOR.
@retval the number of handles in the handle database.
@return the number of handles in the handle database.
**/
typedef
UINTN
@ -598,49 +593,50 @@ UINTN
);
/**
Handle Enumerator structure
Handle Enumerator structure.
**/
typedef struct {
INIT_HANDLE_ENUMERATOR Init; ///< pointer to INIT_HANDLE_ENUMERATOR function
NEXT_HANDLE Next; ///< pointer to NEXT_HANDLE function
SKIP_HANDLE Skip; ///< pointer to SKIP_HANDLE function
RESET_HANDLE_ENUMERATOR Reset; ///< pointer to RESET_HANDLE_ENUMERATOR function
CLOSE_HANDLE_ENUMERATOR Close; ///< pointer to CLOSE_HANDLE_ENUMERATOR function
GET_NUM GetNum; ///< pointer to GET_NUM function
INIT_HANDLE_ENUMERATOR Init; ///< Pointer to INIT_HANDLE_ENUMERATOR function.
NEXT_HANDLE Next; ///< Pointer to NEXT_HANDLE function.
SKIP_HANDLE Skip; ///< Pointer to SKIP_HANDLE function.
RESET_HANDLE_ENUMERATOR Reset; ///< Pointer to RESET_HANDLE_ENUMERATOR function.
CLOSE_HANDLE_ENUMERATOR Close; ///< Pointer to CLOSE_HANDLE_ENUMERATOR function.
GET_NUM GetNum; ///< Pointer to GET_NUM function.
} HANDLE_ENUMERATOR;
/**
signature for the PROTOCOL_INFO structure
Signature for the PROTOCOL_INFO structure.
**/
#define PROTOCOL_INFO_SIGNATURE SIGNATURE_32 ('s', 'p', 'i', 'n')
/**
PROTOCOL_INFO structure for protocol enumerator functions.
**/
typedef struct {
UINTN Signature; ///< PROTOCOL_INFO_SIGNATURE
LIST_ENTRY Link; ///< standard lined list helper member
UINTN Signature; ///< PROTOCOL_INFO_SIGNATURE.
LIST_ENTRY Link; ///< Standard lined list helper member.
//
// parsing info for the protocol
// The parsing info for the protocol.
//
EFI_GUID ProtocolId; ///< GUID for the protocol
CHAR16 *IdString; ///< Name of the protocol
SHELLENV_DUMP_PROTOCOL_INFO DumpToken; ///< pointer to DumpToken function for the protocol
SHELLENV_DUMP_PROTOCOL_INFO DumpInfo; ///< pointer to DumpInfo function for the protocol
EFI_GUID ProtocolId; ///< GUID for the protocol.
CHAR16 *IdString; ///< Name of the protocol.
SHELLENV_DUMP_PROTOCOL_INFO DumpToken; ///< Pointer to DumpToken function for the protocol.
SHELLENV_DUMP_PROTOCOL_INFO DumpInfo; ///< Pointer to DumpInfo function for the protocol.
//
// database info on which handles are supporting this protocol
// Patabase info on which handles are supporting this protocol.
//
UINTN NoHandles; ///< how many handles produce this protocol
EFI_HANDLE *Handles; ///< array of handles
UINTN NoHandles; ///< How many handles produce this protocol.
EFI_HANDLE *Handles; ///< The array of handles.
} PROTOCOL_INFO;
//
// declarations of protocol info enumerator
// Declarations of protocol info enumerator.
//
/**
this is an internal shell function to initialize the protocol enumerator.
This is an internal shell function to initialize the protocol enumerator.
this must be called before NEXT_PROTOCOL_INFO, SKIP_PROTOCOL_INFO,
This must be called before NEXT_PROTOCOL_INFO, SKIP_PROTOCOL_INFO,
RESET_PROTOCOL_INFO_ENUMERATOR, and CLOSE_PROTOCOL_INFO_ENUMERATOR are
called.
**/
@ -651,7 +647,7 @@ VOID
);
/**
this function is an internal shell function for enumeration of protocols.
This function is an internal shell function for enumeration of protocols.
This functiol will return the next protocol in the list. If this is called
immediately after initialization it will return the first. If this is called
@ -660,10 +656,10 @@ VOID
This cannot be called after CLOSE_PROTOCOL_INFO_ENUMERATOR, but it must be
called after INIT_PROTOCOL_INFO_ENUMERATOR.
@param ProtocolInfo pointer to pointer to protocol information structure.
@param ProtocolInfo Pointer to pointer to protocol information structure.
@retval EFI_SUCCESS the next protocol's information was sucessfully returned.
If there were no more protocols NULL was returned.
@retval EFI_SUCCESS The next protocol's information was sucessfully returned.
@retval NULL There are no more protocols.
**/
typedef
EFI_STATUS
@ -672,14 +668,14 @@ EFI_STATUS
);
/**
this function is an internal shell function for enumeration of protocols.
This function is an internal shell function for enumeration of protocols.
This cannot be called after CLOSE_PROTOCOL_INFO_ENUMERATOR, but it must be
called after INIT_PROTOCOL_INFO_ENUMERATOR.
this function does nothing and always returns EFI_SUCCESS.
This function does nothing and always returns EFI_SUCCESS.
@retval EFI_SUCCESS always returned (see note).
@retval EFI_SUCCESS always returned (see above).
**/
typedef
EFI_STATUS
@ -688,12 +684,12 @@ EFI_STATUS
);
/**
this function is an internal shell function for enumeration of protocols.
This function is an internal shell function for enumeration of protocols.
This cannot be called after CLOSE_PROTOCOL_INFO_ENUMERATOR, but it must be
called after INIT_PROTOCOL_INFO_ENUMERATOR.
this function resets the list of protocols such that the next one in the
This function resets the list of protocols such that the next one in the
list is the begining of the list.
**/
typedef
@ -704,12 +700,12 @@ VOID
/**
this function is an internal shell function for enumeration of protocols.
This function is an internal shell function for enumeration of protocols.
This must be called after INIT_PROTOCOL_INFO_ENUMERATOR. After this call
no protocol enumerator calls except INIT_PROTOCOL_INFO_ENUMERATOR may be made.
this function frees any memory or resources associated with the protocol
This function frees any memory or resources associated with the protocol
enumerator.
**/
typedef
@ -719,18 +715,18 @@ VOID
);
/**
* protocol enumerator structure of function pointers.
Protocol enumerator structure of function pointers.
**/
typedef struct {
INIT_PROTOCOL_INFO_ENUMERATOR Init; ///< pointer to INIT_PROTOCOL_INFO_ENUMERATOR function
NEXT_PROTOCOL_INFO Next; ///< pointer to NEXT_PROTOCOL_INFO function
SKIP_PROTOCOL_INFO Skip; ///< pointer to SKIP_PROTOCOL_INFO function
RESET_PROTOCOL_INFO_ENUMERATOR Reset; ///< pointer to RESET_PROTOCOL_INFO_ENUMERATOR function
CLOSE_PROTOCOL_INFO_ENUMERATOR Close; ///< pointer to CLOSE_PROTOCOL_INFO_ENUMERATOR function
INIT_PROTOCOL_INFO_ENUMERATOR Init; ///< Pointer to INIT_PROTOCOL_INFO_ENUMERATOR function.
NEXT_PROTOCOL_INFO Next; ///< Pointer to NEXT_PROTOCOL_INFO function.
SKIP_PROTOCOL_INFO Skip; ///< Pointer to SKIP_PROTOCOL_INFO function.
RESET_PROTOCOL_INFO_ENUMERATOR Reset; ///< Pointer to RESET_PROTOCOL_INFO_ENUMERATOR function.
CLOSE_PROTOCOL_INFO_ENUMERATOR Close; ///< Pointer to CLOSE_PROTOCOL_INFO_ENUMERATOR function.
} PROTOCOL_INFO_ENUMERATOR;
/**
this function is used to retrieve a user-friendly display name for a handle.
This function is used to retrieve a user-friendly display name for a handle.
If UseComponentName is TRUE then the component name protocol for this device
or it's parent device (if required) will be used to obtain the name of the
@ -748,17 +744,17 @@ typedef struct {
Upon sucessful return the memory for *BestDeviceName is up to the caller to free.
@param DeviceHandle the device handle whose name is desired
@param UseComponentName whether to use the ComponentName protocol at all
@param UseDevicePath whether to use the DevicePath protocol at all
@param Language pointer to language string to use
@param BestDeviceName pointer to pointer to string allocated with the name
@param ConfigurationStatus pointer to status for opening a Configuration protocol
@param DiagnosticsStatus pointer to status for opening a Diagnostics protocol
@param Display Whether to Print this out to default Print location
@param Indent how many characters to indent the printing
@param DeviceHandle The device handle whose name is desired.
@param UseComponentName Whether to use the ComponentName protocol at all.
@param UseDevicePath Whether to use the DevicePath protocol at all.
@param Language Pointer to language string to use.
@param BestDeviceName Pointer to pointer to string allocated with the name.
@param ConfigurationStatus Pointer to status for opening a Configuration protocol.
@param DiagnosticsStatus Pointer to status for opening a Diagnostics protocol.
@param Display Whether to Print this out to default Print location.
@param Indent How many characters to indent the printing.
@retval EFI_SUCCESS this function always returns EFI_SUCCESS
@retval EFI_SUCCESS This function always returns EFI_SUCCESS.
**/
typedef
EFI_STATUS
@ -778,13 +774,13 @@ EFI_STATUS
#define EFI_SHELL_ENHANCED_MODE_VER L"1.1.2" ///< string for highest version this shell supports
/**
this function gets the shell mode as stored in the shell environment
"efishellmode". it will not fail.
This function gets the shell mode as stored in the shell environment
"efishellmode". It will not fail.
@param Mode returns a string representing one of the
@param Mode Returns a string representing one of the
2 supported modes of the shell.
@retval EFI_SUCCESS this function always returns success
@retval EFI_SUCCESS This function always returns success.
**/
typedef
EFI_STATUS
@ -793,17 +789,17 @@ EFI_STATUS
);
/**
Convert a file system style name to an file path
Convert a file system style name to a device path.
This function will convert a shell path name to a Device Path Protocol path.
This function will allocate any required memory for this operation and it
is the responsibility of the caller to free that memory when no longer required.
if anything prevents the complete conversion free any allocated memory and
If anything prevents the complete conversion free any allocated memory and
return NULL.
@retval !NULL a pointer to the callee allocated Device Path
@retval NULL the operation could not be completed.
@retval !NULL A pointer to the callee allocated Device Path.
@retval NULL The operation could not be completed.
**/
typedef
EFI_DEVICE_PATH_PROTOCOL*
@ -812,25 +808,26 @@ EFI_DEVICE_PATH_PROTOCOL*
);
/**
converts a device path into a file system map name.
Converts a device path into a file system map name.
If DevPath is NULL, then ASSERT.
if DevPath is NULL then ASSERT
This function looks through the shell environment map for a map whose device
path matches the DevPath parameter. If one is found the Name is returned via
Name parameter. If sucessful the caller must free the memory allocated for
Name.
this function will use the internal lock to prevent changes to the map during
This function will use the internal lock to prevent changes to the map during
the lookup operation.
@param DevPath The device path to search for a name for
@param ConsistMapping what state to verify map flag VAR_ID_CONSIST
@param Name on sucessful return the name of that device path
@param DevPath The device path to search for a name for.
@param ConsistMapping What state to verify map flag VAR_ID_CONSIST.
@param Name On sucessful return the name of that device path.
@retval EFI_SUCCESS the DevPath was found and the name returned
@retval EFI_SUCCESS The DevPath was found and the name returned
in Name.
@retval EFI_OUT_OF_RESOURCES A required memory allocation failed.
@retval EFI_UNSUPPORTED the DevPath was not found in the map
@retval EFI_UNSUPPORTED The DevPath was not found in the map.
**/
typedef
EFI_STATUS
@ -841,23 +838,23 @@ EFI_STATUS
);
/**
this function will open a group of files that match the Arg path, but will not
support the wildcard characters ('?' and '*') in the Arg path. if there are
This function will open a group of files that match the Arg path, but will not
support the wildcard characters ('?' and '*') in the Arg path. If there are
any wildcard characters in the path this function will return
EFI_INVALID_PARAMETER. the return is a double linked list based on the
LIST_ENTRY linked list structure. use this in conjunction with the
EFI_INVALID_PARAMETER. The return is a double linked list based on the
LIST_ENTRY linked list structure. Use this in conjunction with the
SHELL_FILE_ARG_SIGNATURE to get the SHELL_FILE_ARG structures that are returned.
The memory allocated by the callee for this list is freed by making a call to
SHELLENV_FREE_FILE_LIST.
@param Arg pointer Path to files to open
@param ListHead pointer to allocated and initialized list head
@param Arg Pointer Path to files to open.
@param ListHead Pointer to allocated and initialized list head
upon which to append all the opened file structures.
@retval EFI_SUCCESS 1 or more files was opened and a struct of each file's
information was appended to ListHead.
@retval EFI_OUT_OF_RESOURCES a memory allocation failed.
@retval EFI_NOT_FOUND no matching files could be found.
@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
@retval EFI_NOT_FOUND No matching files could be found.
@sa SHELLENV_FREE_FILE_LIST
**/
typedef
@ -868,18 +865,18 @@ EFI_STATUS
);
/**
this function removes duplicate file listings from lists.
This function removes duplicate file listings from lists.
this is a function for use with SHELLENV_FILE_META_ARG_NO_WILDCARD and
SHELLENV_FILE_META_ARG. this function will verify that there are no duplicate
files in the list of returned files. any file listed twice will have one of its
This is a function for use with SHELLENV_FILE_META_ARG_NO_WILDCARD and
SHELLENV_FILE_META_ARG. This function will verify that there are no duplicate
files in the list of returned files. Any file listed twice will have one of its
instances removed.
@param ListHead pointer to linked list head that was returned from
@param ListHead Pointer to linked list head that was returned from
SHELLENV_FILE_META_ARG_NO_WILDCARD or
SHELLENV_FILE_META_ARG.
@retval EFI_SUCCESS this function always returns success.
@retval EFI_SUCCESS This function always returns success.
**/
typedef
@ -891,24 +888,24 @@ EFI_STATUS
/**
Converts a File System map name to a device path.
if DevPath is NULL then ASSERT()
if DevPath is NULL, then ASSERT().
This function looks through the shell environment map for a map whose Name
matches the Name parameter. If one is found the device path pointer is
updated to point to that file systems device path. the caller should not
updated to point to that file systems device path. The caller should not
free the memory from that device path.
this function will use the internal lock to prevent changes to the map during
This function will use the internal lock to prevent changes to the map during
the lookup operation.
@param Name pointer to NULL terminated UNICODE string of the
file system name
@param DevPath pointer to pointer to DevicePath. only valid on
OUT if sucessful
@param Name Pointer to NULL terminated UNICODE string of the
file system name.
@param DevPath Pointer to pointer to DevicePath. only valid on
OUT if sucessful.
@retval EFI_SUCCESS the conversion was successful and the device
@retval EFI_SUCCESS The conversion was successful and the device
path was returned.
@retval EFI_NOT_FOUND the file system could not be found in the map.
@retval EFI_NOT_FOUND The file system could not be found in the map.
**/
typedef
EFI_STATUS
@ -917,8 +914,7 @@ EFI_STATUS
OUT EFI_DEVICE_PATH_PROTOCOL **DevPath
);
/// EFI_SHELL_ENVIRONMENT2 protocol structure
/// contains pointers to functions
/// EFI_SHELL_ENVIRONMENT2 protocol structure.
typedef struct {
SHELLENV_EXECUTE Execute;
SHELLENV_GET_ENV GetEnv;
@ -931,7 +927,7 @@ typedef struct {
SHELLENV_FREE_FILE_LIST FreeFileList;
//
// The following services are only used by the shell itself
// The following services are only used by the shell itself.
//
SHELLENV_NEW_SHELL NewShell;
SHELLENV_BATCH_IS_ACTIVE BatchIsActive;
@ -939,11 +935,11 @@ typedef struct {
SHELLENV_FREE_RESOURCES FreeResources;
//
// GUID to differentiate ShellEnvironment2 from ShellEnvironment
// GUID to differentiate ShellEnvironment2 from ShellEnvironment.
//
EFI_GUID SESGuid;
//
// Major Version grows if shell environment interface has been changes
// Major Version grows if shell environment interface has been changes.
//
UINT32 MajorVersion;
UINT32 MinorVersion;
@ -973,4 +969,5 @@ typedef struct {
extern EFI_GUID gEfiShellEnvironment2Guid;
extern EFI_GUID gEfiShellEnvironment2ExtGuid;
#endif // _SHELLENV_H_
#endif // _SHELL_ENVIRONMENT_2_PROTOCOL_H_