/*++ | |
Copyright (c) 2004, 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: | |
ConsoleIn.c | |
Abstract: | |
Console based on Posix APIs. | |
This file attaches a SimpleTextIn protocol to a previously open window. | |
The constructor for this protocol depends on an open window. Currently | |
the SimpleTextOut protocol creates a window when it's constructor is called. | |
Thus this code must run after the constructor for the SimpleTextOut | |
protocol | |
--*/ | |
#include "Console.h" | |
#include <sys/poll.h> | |
// | |
// Private worker functions | |
// | |
EFI_STATUS | |
UnixSimpleTextInCheckKey ( | |
UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private | |
); | |
EFI_STATUS | |
EFIAPI | |
UnixSimpleTextInReset ( | |
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This, | |
IN BOOLEAN ExtendedVerification | |
) | |
/*++ | |
Routine Description: | |
TODO: Add function description | |
Arguments: | |
This - TODO: add argument description | |
ExtendedVerification - TODO: add argument description | |
Returns: | |
EFI_SUCCESS - TODO: Add description for return value | |
--*/ | |
{ | |
UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private; | |
Private = UNIX_SIMPLE_TEXT_IN_PRIVATE_DATA_FROM_THIS (This); | |
return EFI_SUCCESS; | |
} | |
EFI_STATUS | |
UnixConvertInputRecordToEfiKey ( | |
IN char c, | |
OUT EFI_INPUT_KEY *Key | |
) | |
/*++ | |
Routine Description: | |
TODO: Add function description | |
Arguments: | |
InputRecord - TODO: add argument description | |
Key - TODO: add argument description | |
Returns: | |
EFI_NOT_READY - TODO: Add description for return value | |
EFI_NOT_READY - TODO: Add description for return value | |
EFI_NOT_READY - TODO: Add description for return value | |
EFI_SUCCESS - TODO: Add description for return value | |
--*/ | |
{ | |
Key->ScanCode = 0; | |
if (c == '\n') | |
c = '\r'; | |
Key->UnicodeChar = c; | |
return EFI_SUCCESS; | |
} | |
EFI_STATUS | |
EFIAPI | |
UnixSimpleTextInReadKeyStroke ( | |
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This, | |
OUT EFI_INPUT_KEY *Key | |
) | |
/*++ | |
Routine Description: | |
TODO: Add function description | |
Arguments: | |
This - TODO: add argument description | |
Key - TODO: add argument description | |
Returns: | |
EFI_DEVICE_ERROR - TODO: Add description for return value | |
EFI_NOT_READY - TODO: Add description for return value | |
--*/ | |
{ | |
EFI_STATUS Status; | |
UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private; | |
char c; | |
Private = UNIX_SIMPLE_TEXT_IN_PRIVATE_DATA_FROM_THIS (This); | |
Status = UnixSimpleTextInCheckKey (Private); | |
if (EFI_ERROR (Status)) { | |
return Status; | |
} | |
if (Private->UnixThunk->Read (0, &c, 1) != 1) | |
return EFI_NOT_READY; | |
Status = UnixConvertInputRecordToEfiKey (c, Key); | |
return Status; | |
} | |
VOID | |
EFIAPI | |
UnixSimpleTextInWaitForKey ( | |
IN EFI_EVENT Event, | |
IN VOID *Context | |
) | |
/*++ | |
Routine Description: | |
TODO: Add function description | |
Arguments: | |
Event - TODO: add argument description | |
Context - TODO: add argument description | |
Returns: | |
TODO: add return values | |
--*/ | |
{ | |
UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private; | |
EFI_STATUS Status; | |
Private = (UNIX_SIMPLE_TEXT_PRIVATE_DATA *) Context; | |
Status = UnixSimpleTextInCheckKey (Private); | |
if (!EFI_ERROR (Status)) { | |
gBS->SignalEvent (Event); | |
} | |
} | |
EFI_STATUS | |
UnixSimpleTextInCheckKey ( | |
UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private | |
) | |
/*++ | |
Routine Description: | |
TODO: Add function description | |
Arguments: | |
Private - TODO: add argument description | |
Returns: | |
TODO: add return values | |
--*/ | |
{ | |
struct pollfd pfd; | |
pfd.fd = 0; | |
pfd.events = POLLIN; | |
if (Private->UnixThunk->Poll (&pfd, 1, 0) <= 0) { | |
return EFI_NOT_READY; | |
} | |
return EFI_SUCCESS; | |
} | |
EFI_STATUS | |
UnixSimpleTextInAttachToWindow ( | |
IN UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private | |
) | |
/*++ | |
Routine Description: | |
TODO: Add function description | |
Arguments: | |
Private - TODO: add argument description | |
Returns: | |
TODO: add return values | |
--*/ | |
{ | |
EFI_STATUS Status; | |
Private->SimpleTextIn.Reset = UnixSimpleTextInReset; | |
Private->SimpleTextIn.ReadKeyStroke = UnixSimpleTextInReadKeyStroke; | |
Status = gBS->CreateEvent ( | |
EVT_NOTIFY_WAIT, | |
TPL_NOTIFY, | |
UnixSimpleTextInWaitForKey, | |
Private, | |
&Private->SimpleTextIn.WaitForKey | |
); | |
ASSERT_EFI_ERROR (Status); | |
return Status; | |
} |