mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-27 16:58:09 +01:00
1931 lines
43 KiB
C
1931 lines
43 KiB
C
/** @file
|
|
Routines that access 8042 keyboard controller
|
|
|
|
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
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.
|
|
|
|
**/
|
|
|
|
#include "Ps2Keyboard.h"
|
|
|
|
struct {
|
|
UINT8 ScanCode; ///< follows value defined in Scan Code Set1
|
|
UINT16 EfiScanCode;
|
|
CHAR16 UnicodeChar;
|
|
CHAR16 ShiftUnicodeChar;
|
|
}
|
|
ConvertKeyboardScanCodeToEfiKey[] = {
|
|
|
|
{
|
|
0x01, // Escape
|
|
SCAN_ESC,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x02,
|
|
SCAN_NULL,
|
|
L'1',
|
|
L'!'
|
|
},
|
|
{
|
|
0x03,
|
|
SCAN_NULL,
|
|
L'2',
|
|
L'@'
|
|
},
|
|
{
|
|
0x04,
|
|
SCAN_NULL,
|
|
L'3',
|
|
L'#'
|
|
},
|
|
{
|
|
0x05,
|
|
SCAN_NULL,
|
|
L'4',
|
|
L'$'
|
|
},
|
|
{
|
|
0x06,
|
|
SCAN_NULL,
|
|
L'5',
|
|
L'%'
|
|
},
|
|
{
|
|
0x07,
|
|
SCAN_NULL,
|
|
L'6',
|
|
L'^'
|
|
},
|
|
{
|
|
0x08,
|
|
SCAN_NULL,
|
|
L'7',
|
|
L'&'
|
|
},
|
|
{
|
|
0x09,
|
|
SCAN_NULL,
|
|
L'8',
|
|
L'*'
|
|
},
|
|
{
|
|
0x0A,
|
|
SCAN_NULL,
|
|
L'9',
|
|
L'('
|
|
},
|
|
{
|
|
0x0B,
|
|
SCAN_NULL,
|
|
L'0',
|
|
L')'
|
|
},
|
|
{
|
|
0x0C,
|
|
SCAN_NULL,
|
|
L'-',
|
|
L'_'
|
|
},
|
|
{
|
|
0x0D,
|
|
SCAN_NULL,
|
|
L'=',
|
|
L'+'
|
|
},
|
|
{
|
|
0x0E, // BackSpace
|
|
SCAN_NULL,
|
|
0x0008,
|
|
0x0008
|
|
},
|
|
{
|
|
0x0F, // Tab
|
|
SCAN_NULL,
|
|
0x0009,
|
|
0x0009
|
|
},
|
|
{
|
|
0x10,
|
|
SCAN_NULL,
|
|
L'q',
|
|
L'Q'
|
|
},
|
|
{
|
|
0x11,
|
|
SCAN_NULL,
|
|
L'w',
|
|
L'W'
|
|
},
|
|
{
|
|
0x12,
|
|
SCAN_NULL,
|
|
L'e',
|
|
L'E'
|
|
},
|
|
{
|
|
0x13,
|
|
SCAN_NULL,
|
|
L'r',
|
|
L'R'
|
|
},
|
|
{
|
|
0x14,
|
|
SCAN_NULL,
|
|
L't',
|
|
L'T'
|
|
},
|
|
{
|
|
0x15,
|
|
SCAN_NULL,
|
|
L'y',
|
|
L'Y'
|
|
},
|
|
{
|
|
0x16,
|
|
SCAN_NULL,
|
|
L'u',
|
|
L'U'
|
|
},
|
|
{
|
|
0x17,
|
|
SCAN_NULL,
|
|
L'i',
|
|
L'I'
|
|
},
|
|
{
|
|
0x18,
|
|
SCAN_NULL,
|
|
L'o',
|
|
L'O'
|
|
},
|
|
{
|
|
0x19,
|
|
SCAN_NULL,
|
|
L'p',
|
|
L'P'
|
|
},
|
|
{
|
|
0x1a,
|
|
SCAN_NULL,
|
|
L'[',
|
|
L'{'
|
|
},
|
|
{
|
|
0x1b,
|
|
SCAN_NULL,
|
|
L']',
|
|
L'}'
|
|
},
|
|
{
|
|
0x1c, // Enter
|
|
SCAN_NULL,
|
|
0x000d,
|
|
0x000d
|
|
},
|
|
{
|
|
0x1d,
|
|
SCAN_NULL,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x1e,
|
|
SCAN_NULL,
|
|
L'a',
|
|
L'A'
|
|
},
|
|
{
|
|
0x1f,
|
|
SCAN_NULL,
|
|
L's',
|
|
L'S'
|
|
},
|
|
{
|
|
0x20,
|
|
SCAN_NULL,
|
|
L'd',
|
|
L'D'
|
|
},
|
|
{
|
|
0x21,
|
|
SCAN_NULL,
|
|
L'f',
|
|
L'F'
|
|
},
|
|
{
|
|
0x22,
|
|
SCAN_NULL,
|
|
L'g',
|
|
L'G'
|
|
},
|
|
{
|
|
0x23,
|
|
SCAN_NULL,
|
|
L'h',
|
|
L'H'
|
|
},
|
|
{
|
|
0x24,
|
|
SCAN_NULL,
|
|
L'j',
|
|
L'J'
|
|
},
|
|
{
|
|
0x25,
|
|
SCAN_NULL,
|
|
L'k',
|
|
L'K'
|
|
},
|
|
{
|
|
0x26,
|
|
SCAN_NULL,
|
|
L'l',
|
|
L'L'
|
|
},
|
|
{
|
|
0x27,
|
|
SCAN_NULL,
|
|
L';',
|
|
L':'
|
|
},
|
|
{
|
|
0x28,
|
|
SCAN_NULL,
|
|
L'\'',
|
|
L'"'
|
|
},
|
|
{
|
|
0x29,
|
|
SCAN_NULL,
|
|
L'`',
|
|
L'~'
|
|
},
|
|
{
|
|
0x2a, // Left Shift
|
|
SCAN_NULL,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x2b,
|
|
SCAN_NULL,
|
|
L'\\',
|
|
L'|'
|
|
},
|
|
{
|
|
0x2c,
|
|
SCAN_NULL,
|
|
L'z',
|
|
L'Z'
|
|
},
|
|
{
|
|
0x2d,
|
|
SCAN_NULL,
|
|
L'x',
|
|
L'X'
|
|
},
|
|
{
|
|
0x2e,
|
|
SCAN_NULL,
|
|
L'c',
|
|
L'C'
|
|
},
|
|
{
|
|
0x2f,
|
|
SCAN_NULL,
|
|
L'v',
|
|
L'V'
|
|
},
|
|
{
|
|
0x30,
|
|
SCAN_NULL,
|
|
L'b',
|
|
L'B'
|
|
},
|
|
{
|
|
0x31,
|
|
SCAN_NULL,
|
|
L'n',
|
|
L'N'
|
|
},
|
|
{
|
|
0x32,
|
|
SCAN_NULL,
|
|
L'm',
|
|
L'M'
|
|
},
|
|
{
|
|
0x33,
|
|
SCAN_NULL,
|
|
L',',
|
|
L'<'
|
|
},
|
|
{
|
|
0x34,
|
|
SCAN_NULL,
|
|
L'.',
|
|
L'>'
|
|
},
|
|
{
|
|
0x35,
|
|
SCAN_NULL,
|
|
L'/',
|
|
L'?'
|
|
},
|
|
{
|
|
0x36, //Right Shift
|
|
SCAN_NULL,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x37, // Numeric Keypad *
|
|
SCAN_NULL,
|
|
L'*',
|
|
L'*'
|
|
},
|
|
{
|
|
0x38, //Left Alt/Extended Right Alt
|
|
SCAN_NULL,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x39,
|
|
SCAN_NULL,
|
|
L' ',
|
|
L' '
|
|
},
|
|
{
|
|
0x3A, //CapsLock
|
|
SCAN_NULL,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x3B,
|
|
SCAN_F1,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x3C,
|
|
SCAN_F2,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x3D,
|
|
SCAN_F3,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x3E,
|
|
SCAN_F4,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x3F,
|
|
SCAN_F5,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x40,
|
|
SCAN_F6,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x41,
|
|
SCAN_F7,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x42,
|
|
SCAN_F8,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x43,
|
|
SCAN_F9,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x44,
|
|
SCAN_F10,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x45, // NumLock
|
|
SCAN_NULL,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x46, // ScrollLock
|
|
SCAN_NULL,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x47,
|
|
SCAN_HOME,
|
|
L'7',
|
|
L'7'
|
|
},
|
|
{
|
|
0x48,
|
|
SCAN_UP,
|
|
L'8',
|
|
L'8'
|
|
},
|
|
{
|
|
0x49,
|
|
SCAN_PAGE_UP,
|
|
L'9',
|
|
L'9'
|
|
},
|
|
{
|
|
0x4a,
|
|
SCAN_NULL,
|
|
L'-',
|
|
L'-'
|
|
},
|
|
{
|
|
0x4b,
|
|
SCAN_LEFT,
|
|
L'4',
|
|
L'4'
|
|
},
|
|
{
|
|
0x4c, // Numeric Keypad 5
|
|
SCAN_NULL,
|
|
L'5',
|
|
L'5'
|
|
},
|
|
{
|
|
0x4d,
|
|
SCAN_RIGHT,
|
|
L'6',
|
|
L'6'
|
|
},
|
|
{
|
|
0x4e,
|
|
SCAN_NULL,
|
|
L'+',
|
|
L'+'
|
|
},
|
|
{
|
|
0x4f,
|
|
SCAN_END,
|
|
L'1',
|
|
L'1'
|
|
},
|
|
{
|
|
0x50,
|
|
SCAN_DOWN,
|
|
L'2',
|
|
L'2'
|
|
},
|
|
{
|
|
0x51,
|
|
SCAN_PAGE_DOWN,
|
|
L'3',
|
|
L'3'
|
|
},
|
|
{
|
|
0x52,
|
|
SCAN_INSERT,
|
|
L'0',
|
|
L'0'
|
|
},
|
|
{
|
|
0x53,
|
|
SCAN_DELETE,
|
|
L'.',
|
|
L'.'
|
|
},
|
|
{
|
|
0x57,
|
|
SCAN_F11,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x58,
|
|
SCAN_F12,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x5B, //Left LOGO
|
|
SCAN_NULL,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x5C, //Right LOGO
|
|
SCAN_NULL,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
0x5D, //Menu key
|
|
SCAN_NULL,
|
|
0x0000,
|
|
0x0000
|
|
},
|
|
{
|
|
TABLE_END,
|
|
TABLE_END,
|
|
SCAN_NULL,
|
|
SCAN_NULL
|
|
},
|
|
};
|
|
|
|
//
|
|
// The WaitForValue time out
|
|
//
|
|
UINTN mWaitForValueTimeOut = KEYBOARD_WAITFORVALUE_TIMEOUT;
|
|
|
|
BOOLEAN mEnableMouseInterface;
|
|
|
|
|
|
|
|
/**
|
|
Return the count of scancode in the queue.
|
|
|
|
@param Queue Pointer to instance of SCAN_CODE_QUEUE.
|
|
|
|
@return Count of the scancode.
|
|
**/
|
|
UINTN
|
|
GetScancodeBufCount (
|
|
IN SCAN_CODE_QUEUE *Queue
|
|
)
|
|
{
|
|
if (Queue->Head <= Queue->Tail) {
|
|
return Queue->Tail - Queue->Head;
|
|
} else {
|
|
return Queue->Tail + KEYBOARD_SCAN_CODE_MAX_COUNT - Queue->Head;
|
|
}
|
|
}
|
|
|
|
/**
|
|
Read several bytes from the scancode buffer without removing them.
|
|
This function is called to see if there are enough bytes of scancode
|
|
representing a single key.
|
|
|
|
@param Queue Pointer to instance of SCAN_CODE_QUEUE.
|
|
@param Count Number of bytes to be read
|
|
@param Buf Store the results
|
|
|
|
@retval EFI_SUCCESS success to scan the keyboard code
|
|
@retval EFI_NOT_READY invalid parameter
|
|
**/
|
|
EFI_STATUS
|
|
GetScancodeBufHead (
|
|
IN SCAN_CODE_QUEUE *Queue,
|
|
IN UINTN Count,
|
|
OUT UINT8 *Buf
|
|
)
|
|
{
|
|
UINTN Index;
|
|
UINTN Pos;
|
|
|
|
//
|
|
// check the valid range of parameter 'Count'
|
|
//
|
|
if (GetScancodeBufCount (Queue) < Count) {
|
|
return EFI_NOT_READY;
|
|
}
|
|
//
|
|
// retrieve the values
|
|
//
|
|
for (Index = 0, Pos = Queue->Head; Index < Count; Index++, Pos = (Pos + 1) % KEYBOARD_SCAN_CODE_MAX_COUNT) {
|
|
Buf[Index] = Queue->Buffer[Pos];
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
|
|
Read & remove several bytes from the scancode buffer.
|
|
This function is usually called after GetScancodeBufHead()
|
|
|
|
@param Queue Pointer to instance of SCAN_CODE_QUEUE.
|
|
@param Count Number of bytes to be read
|
|
@param Buf Store the results
|
|
|
|
@retval EFI_SUCCESS success to scan the keyboard code
|
|
@retval EFI_NOT_READY invalid parameter
|
|
**/
|
|
EFI_STATUS
|
|
PopScancodeBufHead (
|
|
IN SCAN_CODE_QUEUE *Queue,
|
|
IN UINTN Count,
|
|
OUT UINT8 *Buf OPTIONAL
|
|
)
|
|
{
|
|
UINTN Index;
|
|
|
|
//
|
|
// Check the valid range of parameter 'Count'
|
|
//
|
|
if (GetScancodeBufCount (Queue) < Count) {
|
|
return EFI_NOT_READY;
|
|
}
|
|
//
|
|
// Retrieve and remove the values
|
|
//
|
|
for (Index = 0; Index < Count; Index++, Queue->Head = (Queue->Head + 1) % KEYBOARD_SCAN_CODE_MAX_COUNT) {
|
|
if (Buf != NULL) {
|
|
Buf[Index] = Queue->Buffer[Queue->Head];
|
|
}
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Push one byte to the scancode buffer.
|
|
|
|
@param Queue Pointer to instance of SCAN_CODE_QUEUE.
|
|
@param Scancode The byte to push.
|
|
**/
|
|
VOID
|
|
PushScancodeBufTail (
|
|
IN SCAN_CODE_QUEUE *Queue,
|
|
IN UINT8 Scancode
|
|
)
|
|
{
|
|
if (GetScancodeBufCount (Queue) == KEYBOARD_SCAN_CODE_MAX_COUNT - 1) {
|
|
PopScancodeBufHead (Queue, 1, NULL);
|
|
}
|
|
|
|
Queue->Buffer[Queue->Tail] = Scancode;
|
|
Queue->Tail = (Queue->Tail + 1) % KEYBOARD_SCAN_CODE_MAX_COUNT;
|
|
}
|
|
|
|
/**
|
|
Read data register .
|
|
|
|
@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV
|
|
|
|
@return return the value
|
|
|
|
**/
|
|
UINT8
|
|
KeyReadDataRegister (
|
|
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn
|
|
)
|
|
|
|
{
|
|
EFI_ISA_IO_PROTOCOL *IsaIo;
|
|
UINT8 Data;
|
|
|
|
//
|
|
// Use IsaIo protocol to perform IO operations
|
|
//
|
|
IsaIo = ConsoleIn->IsaIo;
|
|
|
|
IsaIo->Io.Read (
|
|
IsaIo,
|
|
EfiIsaIoWidthUint8,
|
|
ConsoleIn->DataRegisterAddress,
|
|
1,
|
|
&Data
|
|
);
|
|
|
|
return Data;
|
|
}
|
|
|
|
/**
|
|
Write data register.
|
|
|
|
@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV
|
|
@param Data value wanted to be written
|
|
|
|
**/
|
|
VOID
|
|
KeyWriteDataRegister (
|
|
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,
|
|
IN UINT8 Data
|
|
)
|
|
{
|
|
ConsoleIn->IsaIo->Io.Write (
|
|
ConsoleIn->IsaIo,
|
|
EfiIsaIoWidthUint8,
|
|
ConsoleIn->DataRegisterAddress,
|
|
1,
|
|
&Data
|
|
);
|
|
}
|
|
|
|
/**
|
|
Read status register.
|
|
|
|
@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV
|
|
|
|
@return value in status register
|
|
|
|
**/
|
|
UINT8
|
|
KeyReadStatusRegister (
|
|
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn
|
|
)
|
|
{
|
|
UINT8 Data;
|
|
ConsoleIn->IsaIo->Io.Read (
|
|
ConsoleIn->IsaIo,
|
|
EfiIsaIoWidthUint8,
|
|
ConsoleIn->StatusRegisterAddress,
|
|
1,
|
|
&Data
|
|
);
|
|
return Data;
|
|
}
|
|
|
|
/**
|
|
Write command register .
|
|
|
|
@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV
|
|
@param Data The value wanted to be written
|
|
|
|
**/
|
|
VOID
|
|
KeyWriteCommandRegister (
|
|
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,
|
|
IN UINT8 Data
|
|
)
|
|
{
|
|
ConsoleIn->IsaIo->Io.Write (
|
|
ConsoleIn->IsaIo,
|
|
EfiIsaIoWidthUint8,
|
|
ConsoleIn->CommandRegisterAddress,
|
|
1,
|
|
&Data
|
|
);
|
|
}
|
|
|
|
/**
|
|
Display error message.
|
|
|
|
@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV
|
|
@param ErrMsg Unicode string of error message
|
|
|
|
**/
|
|
VOID
|
|
KeyboardError (
|
|
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,
|
|
IN CHAR16 *ErrMsg
|
|
)
|
|
{
|
|
ConsoleIn->KeyboardErr = TRUE;
|
|
}
|
|
|
|
/**
|
|
Timer event handler: read a series of scancodes from 8042
|
|
and put them into memory scancode buffer.
|
|
it read as much scancodes to either fill
|
|
the memory buffer or empty the keyboard buffer.
|
|
It is registered as running under TPL_NOTIFY
|
|
|
|
@param Event The timer event
|
|
@param Context A KEYBOARD_CONSOLE_IN_DEV pointer
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
KeyboardTimerHandler (
|
|
IN EFI_EVENT Event,
|
|
IN VOID *Context
|
|
)
|
|
|
|
{
|
|
UINT8 Data;
|
|
EFI_TPL OldTpl;
|
|
KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;
|
|
|
|
ConsoleIn = (KEYBOARD_CONSOLE_IN_DEV *) Context;
|
|
|
|
//
|
|
// Enter critical section
|
|
//
|
|
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
|
|
|
|
if (((KEYBOARD_CONSOLE_IN_DEV *) Context)->KeyboardErr) {
|
|
//
|
|
// Leave critical section and return
|
|
//
|
|
gBS->RestoreTPL (OldTpl);
|
|
return ;
|
|
}
|
|
|
|
//
|
|
// To let KB driver support Hot plug, here should skip the 'resend' command for the case that
|
|
// KB is not connected to system. If KB is not connected to system, driver will find there's something
|
|
// error in the following code and wait for the input buffer empty, this waiting time shoulb be short enough since
|
|
// this is a NOTIFY TPL period function, or the system performance will degrade hardly when KB is not connected.
|
|
// Just skip the 'resend' process simply.
|
|
//
|
|
|
|
while ((KeyReadStatusRegister (ConsoleIn) & (KEYBOARD_STATUS_REGISTER_TRANSMIT_TIMEOUT|KEYBOARD_STATUS_REGISTER_HAS_OUTPUT_DATA)) ==
|
|
KEYBOARD_STATUS_REGISTER_HAS_OUTPUT_DATA
|
|
) {
|
|
//
|
|
// Read one byte of the scan code and store it into the memory buffer
|
|
//
|
|
Data = KeyReadDataRegister (ConsoleIn);
|
|
PushScancodeBufTail (&ConsoleIn->ScancodeQueue, Data);
|
|
}
|
|
KeyGetchar (ConsoleIn);
|
|
|
|
//
|
|
// Leave critical section and return
|
|
//
|
|
gBS->RestoreTPL (OldTpl);
|
|
}
|
|
|
|
/**
|
|
Read key value .
|
|
|
|
@param ConsoleIn - Pointer to instance of KEYBOARD_CONSOLE_IN_DEV
|
|
@param Data - Pointer to outof buffer for keeping key value
|
|
|
|
@retval EFI_TIMEOUT Status resigter time out
|
|
@retval EFI_SUCCESS Success to read keyboard
|
|
|
|
**/
|
|
EFI_STATUS
|
|
KeyboardRead (
|
|
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,
|
|
OUT UINT8 *Data
|
|
)
|
|
|
|
{
|
|
UINT32 TimeOut;
|
|
UINT32 RegFilled;
|
|
|
|
TimeOut = 0;
|
|
RegFilled = 0;
|
|
|
|
//
|
|
// wait till output buffer full then perform the read
|
|
//
|
|
for (TimeOut = 0; TimeOut < KEYBOARD_TIMEOUT; TimeOut += 30) {
|
|
if (KeyReadStatusRegister (ConsoleIn) & KEYBOARD_STATUS_REGISTER_HAS_OUTPUT_DATA) {
|
|
RegFilled = 1;
|
|
*Data = KeyReadDataRegister (ConsoleIn);
|
|
break;
|
|
}
|
|
|
|
MicroSecondDelay (30);
|
|
}
|
|
|
|
if (RegFilled == 0) {
|
|
return EFI_TIMEOUT;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
write key to keyboard
|
|
|
|
@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV
|
|
@param Data value wanted to be written
|
|
|
|
@retval EFI_TIMEOUT The input buffer register is full for putting new value util timeout
|
|
@retval EFI_SUCCESS The new value is sucess put into input buffer register.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
KeyboardWrite (
|
|
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,
|
|
IN UINT8 Data
|
|
)
|
|
{
|
|
UINT32 TimeOut;
|
|
UINT32 RegEmptied;
|
|
|
|
TimeOut = 0;
|
|
RegEmptied = 0;
|
|
|
|
//
|
|
// wait for input buffer empty
|
|
//
|
|
for (TimeOut = 0; TimeOut < KEYBOARD_TIMEOUT; TimeOut += 30) {
|
|
if ((KeyReadStatusRegister (ConsoleIn) & 0x02) == 0) {
|
|
RegEmptied = 1;
|
|
break;
|
|
}
|
|
|
|
MicroSecondDelay (30);
|
|
}
|
|
|
|
if (RegEmptied == 0) {
|
|
return EFI_TIMEOUT;
|
|
}
|
|
//
|
|
// Write it
|
|
//
|
|
KeyWriteDataRegister (ConsoleIn, Data);
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Issue keyboard command.
|
|
|
|
@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV
|
|
@param Data The buff holding the command
|
|
|
|
@retval EFI_TIMEOUT Keyboard is not ready to issuing
|
|
@retval EFI_SUCCESS Success to issue keyboard command
|
|
|
|
**/
|
|
EFI_STATUS
|
|
KeyboardCommand (
|
|
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,
|
|
IN UINT8 Data
|
|
)
|
|
{
|
|
UINT32 TimeOut;
|
|
UINT32 RegEmptied;
|
|
|
|
TimeOut = 0;
|
|
RegEmptied = 0;
|
|
|
|
//
|
|
// Wait For Input Buffer Empty
|
|
//
|
|
for (TimeOut = 0; TimeOut < KEYBOARD_TIMEOUT; TimeOut += 30) {
|
|
if ((KeyReadStatusRegister (ConsoleIn) & 0x02) == 0) {
|
|
RegEmptied = 1;
|
|
break;
|
|
}
|
|
|
|
MicroSecondDelay (30);
|
|
}
|
|
|
|
if (RegEmptied == 0) {
|
|
return EFI_TIMEOUT;
|
|
}
|
|
//
|
|
// issue the command
|
|
//
|
|
KeyWriteCommandRegister (ConsoleIn, Data);
|
|
|
|
//
|
|
// Wait For Input Buffer Empty again
|
|
//
|
|
RegEmptied = 0;
|
|
for (TimeOut = 0; TimeOut < KEYBOARD_TIMEOUT; TimeOut += 30) {
|
|
if ((KeyReadStatusRegister (ConsoleIn) & 0x02) == 0) {
|
|
RegEmptied = 1;
|
|
break;
|
|
}
|
|
|
|
MicroSecondDelay (30);
|
|
}
|
|
|
|
if (RegEmptied == 0) {
|
|
return EFI_TIMEOUT;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
wait for a specific value to be presented on
|
|
8042 Data register by keyboard and then read it,
|
|
used in keyboard commands ack
|
|
|
|
@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV
|
|
@param Value the value wanted to be waited.
|
|
|
|
@retval EFI_TIMEOUT Fail to get specific value in given time
|
|
@retval EFI_SUCCESS Success to get specific value in given time.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
KeyboardWaitForValue (
|
|
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,
|
|
IN UINT8 Value
|
|
)
|
|
{
|
|
UINT8 Data;
|
|
UINT32 TimeOut;
|
|
UINT32 SumTimeOut;
|
|
UINT32 GotIt;
|
|
|
|
GotIt = 0;
|
|
TimeOut = 0;
|
|
SumTimeOut = 0;
|
|
|
|
//
|
|
// Make sure the initial value of 'Data' is different from 'Value'
|
|
//
|
|
Data = 0;
|
|
if (Data == Value) {
|
|
Data = 1;
|
|
}
|
|
//
|
|
// Read from 8042 (multiple times if needed)
|
|
// until the expected value appears
|
|
// use SumTimeOut to control the iteration
|
|
//
|
|
while (1) {
|
|
//
|
|
// Perform a read
|
|
//
|
|
for (TimeOut = 0; TimeOut < KEYBOARD_TIMEOUT; TimeOut += 30) {
|
|
if (KeyReadStatusRegister (ConsoleIn) & 0x01) {
|
|
Data = KeyReadDataRegister (ConsoleIn);
|
|
break;
|
|
}
|
|
|
|
MicroSecondDelay (30);
|
|
}
|
|
|
|
SumTimeOut += TimeOut;
|
|
|
|
if (Data == Value) {
|
|
GotIt = 1;
|
|
break;
|
|
}
|
|
|
|
if (SumTimeOut >= mWaitForValueTimeOut) {
|
|
break;
|
|
}
|
|
}
|
|
//
|
|
// Check results
|
|
//
|
|
if (GotIt == 1) {
|
|
return EFI_SUCCESS;
|
|
} else {
|
|
return EFI_TIMEOUT;
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
Show keyboard status lights according to
|
|
indicators in ConsoleIn.
|
|
|
|
@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV
|
|
|
|
@return status of updating keyboard register
|
|
|
|
**/
|
|
EFI_STATUS
|
|
UpdateStatusLights (
|
|
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
UINT8 Command;
|
|
|
|
//
|
|
// Send keyboard command
|
|
//
|
|
Status = KeyboardWrite (ConsoleIn, 0xed);
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
KeyboardWaitForValue (ConsoleIn, 0xfa);
|
|
|
|
//
|
|
// Light configuration
|
|
//
|
|
Command = 0;
|
|
if (ConsoleIn->CapsLock) {
|
|
Command |= 4;
|
|
}
|
|
|
|
if (ConsoleIn->NumLock) {
|
|
Command |= 2;
|
|
}
|
|
|
|
if (ConsoleIn->ScrollLock) {
|
|
Command |= 1;
|
|
}
|
|
|
|
Status = KeyboardWrite (ConsoleIn, Command);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
KeyboardWaitForValue (ConsoleIn, 0xfa);
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
Initialize the key state.
|
|
|
|
@param ConsoleIn The KEYBOARD_CONSOLE_IN_DEV instance.
|
|
@param KeyState A pointer to receive the key state information.
|
|
**/
|
|
VOID
|
|
InitializeKeyState (
|
|
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,
|
|
OUT EFI_KEY_STATE *KeyState
|
|
)
|
|
{
|
|
KeyState->KeyShiftState = EFI_SHIFT_STATE_VALID
|
|
| (ConsoleIn->LeftCtrl ? EFI_LEFT_CONTROL_PRESSED : 0)
|
|
| (ConsoleIn->RightCtrl ? EFI_RIGHT_CONTROL_PRESSED : 0)
|
|
| (ConsoleIn->LeftAlt ? EFI_LEFT_ALT_PRESSED : 0)
|
|
| (ConsoleIn->RightAlt ? EFI_RIGHT_ALT_PRESSED : 0)
|
|
| (ConsoleIn->LeftShift ? EFI_LEFT_SHIFT_PRESSED : 0)
|
|
| (ConsoleIn->RightShift ? EFI_RIGHT_SHIFT_PRESSED : 0)
|
|
| (ConsoleIn->LeftLogo ? EFI_LEFT_LOGO_PRESSED : 0)
|
|
| (ConsoleIn->RightLogo ? EFI_RIGHT_LOGO_PRESSED : 0)
|
|
| (ConsoleIn->Menu ? EFI_MENU_KEY_PRESSED : 0)
|
|
| (ConsoleIn->SysReq ? EFI_SYS_REQ_PRESSED : 0)
|
|
;
|
|
KeyState->KeyToggleState = EFI_TOGGLE_STATE_VALID
|
|
| (ConsoleIn->CapsLock ? EFI_CAPS_LOCK_ACTIVE : 0)
|
|
| (ConsoleIn->NumLock ? EFI_NUM_LOCK_ACTIVE : 0)
|
|
| (ConsoleIn->ScrollLock ? EFI_SCROLL_LOCK_ACTIVE : 0)
|
|
| (ConsoleIn->IsSupportPartialKey ? EFI_KEY_STATE_EXPOSED : 0)
|
|
;
|
|
}
|
|
|
|
/**
|
|
Get scancode from scancode buffer and translate into EFI-scancode and unicode defined by EFI spec.
|
|
|
|
The function is always called in TPL_NOTIFY.
|
|
|
|
@param ConsoleIn KEYBOARD_CONSOLE_IN_DEV instance pointer
|
|
|
|
**/
|
|
VOID
|
|
KeyGetchar (
|
|
IN OUT KEYBOARD_CONSOLE_IN_DEV *ConsoleIn
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
UINT16 ScanCode;
|
|
BOOLEAN Extend0;
|
|
BOOLEAN Extend1;
|
|
UINTN Index;
|
|
EFI_KEY_DATA KeyData;
|
|
LIST_ENTRY *Link;
|
|
KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
|
|
//
|
|
// 3 bytes most
|
|
//
|
|
UINT8 ScancodeArr[3];
|
|
UINT32 ScancodeArrPos;
|
|
|
|
//
|
|
// Check if there are enough bytes of scancode representing a single key
|
|
// available in the buffer
|
|
//
|
|
while (TRUE) {
|
|
Extend0 = FALSE;
|
|
Extend1 = FALSE;
|
|
ScancodeArrPos = 0;
|
|
Status = GetScancodeBufHead (&ConsoleIn->ScancodeQueue, ScancodeArrPos + 1, ScancodeArr);
|
|
if (EFI_ERROR (Status)) {
|
|
return ;
|
|
}
|
|
|
|
if (ScancodeArr[ScancodeArrPos] == SCANCODE_EXTENDED0) {
|
|
//
|
|
// E0 to look ahead 2 bytes
|
|
//
|
|
Extend0 = TRUE;
|
|
ScancodeArrPos = 1;
|
|
Status = GetScancodeBufHead (&ConsoleIn->ScancodeQueue, ScancodeArrPos + 1, ScancodeArr);
|
|
if (EFI_ERROR (Status)) {
|
|
return ;
|
|
}
|
|
} else if (ScancodeArr[ScancodeArrPos] == SCANCODE_EXTENDED1) {
|
|
//
|
|
// E1 to look ahead 3 bytes
|
|
//
|
|
Extend1 = TRUE;
|
|
ScancodeArrPos = 2;
|
|
Status = GetScancodeBufHead (&ConsoleIn->ScancodeQueue, ScancodeArrPos + 1, ScancodeArr);
|
|
if (EFI_ERROR (Status)) {
|
|
return ;
|
|
}
|
|
}
|
|
//
|
|
// if we reach this position, scancodes for a key is in buffer now,pop them
|
|
//
|
|
Status = PopScancodeBufHead (&ConsoleIn->ScancodeQueue, ScancodeArrPos + 1, ScancodeArr);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
//
|
|
// store the last available byte, this byte of scancode will be checked
|
|
//
|
|
ScanCode = ScancodeArr[ScancodeArrPos];
|
|
|
|
if (!Extend1) {
|
|
//
|
|
// Check for special keys and update the driver state.
|
|
//
|
|
switch (ScanCode) {
|
|
|
|
case SCANCODE_CTRL_MAKE:
|
|
if (Extend0) {
|
|
ConsoleIn->RightCtrl = TRUE;
|
|
} else {
|
|
ConsoleIn->LeftCtrl = TRUE;
|
|
}
|
|
break;
|
|
case SCANCODE_CTRL_BREAK:
|
|
if (Extend0) {
|
|
ConsoleIn->RightCtrl = FALSE;
|
|
} else {
|
|
ConsoleIn->LeftCtrl = FALSE;
|
|
}
|
|
break;
|
|
|
|
case SCANCODE_ALT_MAKE:
|
|
if (Extend0) {
|
|
ConsoleIn->RightAlt = TRUE;
|
|
} else {
|
|
ConsoleIn->LeftAlt = TRUE;
|
|
}
|
|
break;
|
|
case SCANCODE_ALT_BREAK:
|
|
if (Extend0) {
|
|
ConsoleIn->RightAlt = FALSE;
|
|
} else {
|
|
ConsoleIn->LeftAlt = FALSE;
|
|
}
|
|
break;
|
|
|
|
case SCANCODE_LEFT_SHIFT_MAKE:
|
|
//
|
|
// To avoid recognize PRNT_SCRN key as a L_SHIFT key
|
|
// because PRNT_SCRN key generates E0 followed by L_SHIFT scan code.
|
|
// If it the second byte of the PRNT_ScRN skip it.
|
|
//
|
|
if (!Extend0) {
|
|
ConsoleIn->LeftShift = TRUE;
|
|
break;
|
|
}
|
|
continue;
|
|
|
|
case SCANCODE_LEFT_SHIFT_BREAK:
|
|
if (!Extend0) {
|
|
ConsoleIn->LeftShift = FALSE;
|
|
}
|
|
break;
|
|
|
|
case SCANCODE_RIGHT_SHIFT_MAKE:
|
|
ConsoleIn->RightShift = TRUE;
|
|
break;
|
|
case SCANCODE_RIGHT_SHIFT_BREAK:
|
|
ConsoleIn->RightShift = FALSE;
|
|
break;
|
|
|
|
case SCANCODE_LEFT_LOGO_MAKE:
|
|
ConsoleIn->LeftLogo = TRUE;
|
|
break;
|
|
case SCANCODE_LEFT_LOGO_BREAK:
|
|
ConsoleIn->LeftLogo = FALSE;
|
|
break;
|
|
|
|
case SCANCODE_RIGHT_LOGO_MAKE:
|
|
ConsoleIn->RightLogo = TRUE;
|
|
break;
|
|
case SCANCODE_RIGHT_LOGO_BREAK:
|
|
ConsoleIn->RightLogo = FALSE;
|
|
break;
|
|
|
|
case SCANCODE_MENU_MAKE:
|
|
ConsoleIn->Menu = TRUE;
|
|
break;
|
|
case SCANCODE_MENU_BREAK:
|
|
ConsoleIn->Menu = FALSE;
|
|
break;
|
|
|
|
case SCANCODE_SYS_REQ_MAKE:
|
|
if (Extend0) {
|
|
ConsoleIn->SysReq = TRUE;
|
|
}
|
|
break;
|
|
case SCANCODE_SYS_REQ_BREAK:
|
|
if (Extend0) {
|
|
ConsoleIn->SysReq = FALSE;
|
|
}
|
|
break;
|
|
|
|
case SCANCODE_SYS_REQ_MAKE_WITH_ALT:
|
|
ConsoleIn->SysReq = TRUE;
|
|
break;
|
|
case SCANCODE_SYS_REQ_BREAK_WITH_ALT:
|
|
ConsoleIn->SysReq = FALSE;
|
|
break;
|
|
|
|
case SCANCODE_CAPS_LOCK_MAKE:
|
|
ConsoleIn->CapsLock = (BOOLEAN)!ConsoleIn->CapsLock;
|
|
UpdateStatusLights (ConsoleIn);
|
|
break;
|
|
case SCANCODE_NUM_LOCK_MAKE:
|
|
ConsoleIn->NumLock = (BOOLEAN)!ConsoleIn->NumLock;
|
|
UpdateStatusLights (ConsoleIn);
|
|
break;
|
|
case SCANCODE_SCROLL_LOCK_MAKE:
|
|
if (!Extend0) {
|
|
ConsoleIn->ScrollLock = (BOOLEAN)!ConsoleIn->ScrollLock;
|
|
UpdateStatusLights (ConsoleIn);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
//
|
|
// If this is above the valid range, ignore it
|
|
//
|
|
if (ScanCode >= SCANCODE_MAX_MAKE) {
|
|
continue;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Handle Ctrl+Alt+Del hotkey
|
|
//
|
|
if ((ConsoleIn->LeftCtrl || ConsoleIn->RightCtrl) &&
|
|
(ConsoleIn->LeftAlt || ConsoleIn->RightAlt ) &&
|
|
ScanCode == SCANCODE_DELETE_MAKE
|
|
) {
|
|
gRT->ResetSystem (EfiResetWarm, EFI_SUCCESS, 0, NULL);
|
|
}
|
|
|
|
//
|
|
// Save the Shift/Toggle state
|
|
//
|
|
InitializeKeyState (ConsoleIn, &KeyData.KeyState);
|
|
KeyData.Key.ScanCode = SCAN_NULL;
|
|
KeyData.Key.UnicodeChar = CHAR_NULL;
|
|
|
|
//
|
|
// Key Pad "/" shares the same scancode as that of "/" except Key Pad "/" has E0 prefix
|
|
//
|
|
if (Extend0 && ScanCode == 0x35) {
|
|
KeyData.Key.UnicodeChar = L'/';
|
|
KeyData.Key.ScanCode = SCAN_NULL;
|
|
|
|
//
|
|
// PAUSE shares the same scancode as that of NUM except PAUSE has E1 prefix
|
|
//
|
|
} else if (Extend1 && ScanCode == SCANCODE_NUM_LOCK_MAKE) {
|
|
KeyData.Key.UnicodeChar = CHAR_NULL;
|
|
KeyData.Key.ScanCode = SCAN_PAUSE;
|
|
|
|
//
|
|
// PAUSE shares the same scancode as that of SCROLL except PAUSE (CTRL pressed) has E0 prefix
|
|
//
|
|
} else if (Extend0 && ScanCode == SCANCODE_SCROLL_LOCK_MAKE) {
|
|
KeyData.Key.UnicodeChar = CHAR_NULL;
|
|
KeyData.Key.ScanCode = SCAN_PAUSE;
|
|
|
|
//
|
|
// PRNT_SCRN shares the same scancode as that of Key Pad "*" except PRNT_SCRN has E0 prefix
|
|
//
|
|
} else if (Extend0 && ScanCode == SCANCODE_SYS_REQ_MAKE) {
|
|
KeyData.Key.UnicodeChar = CHAR_NULL;
|
|
KeyData.Key.ScanCode = SCAN_NULL;
|
|
|
|
//
|
|
// Except the above special case, all others can be handled by convert table
|
|
//
|
|
} else {
|
|
for (Index = 0; ConvertKeyboardScanCodeToEfiKey[Index].ScanCode != TABLE_END; Index++) {
|
|
if (ScanCode == ConvertKeyboardScanCodeToEfiKey[Index].ScanCode) {
|
|
KeyData.Key.ScanCode = ConvertKeyboardScanCodeToEfiKey[Index].EfiScanCode;
|
|
KeyData.Key.UnicodeChar = ConvertKeyboardScanCodeToEfiKey[Index].UnicodeChar;
|
|
|
|
if ((ConsoleIn->LeftShift || ConsoleIn->RightShift) &&
|
|
(ConvertKeyboardScanCodeToEfiKey[Index].UnicodeChar != ConvertKeyboardScanCodeToEfiKey[Index].ShiftUnicodeChar)) {
|
|
KeyData.Key.UnicodeChar = ConvertKeyboardScanCodeToEfiKey[Index].ShiftUnicodeChar;
|
|
//
|
|
// Need not return associated shift state if a class of printable characters that
|
|
// are normally adjusted by shift modifiers. e.g. Shift Key + 'f' key = 'F'
|
|
//
|
|
KeyData.KeyState.KeyShiftState &= ~(EFI_LEFT_SHIFT_PRESSED | EFI_RIGHT_SHIFT_PRESSED);
|
|
}
|
|
//
|
|
// alphabetic key is affected by CapsLock State
|
|
//
|
|
if (ConsoleIn->CapsLock) {
|
|
if (KeyData.Key.UnicodeChar >= L'a' && KeyData.Key.UnicodeChar <= L'z') {
|
|
KeyData.Key.UnicodeChar = (UINT16) (KeyData.Key.UnicodeChar - L'a' + L'A');
|
|
} else if (KeyData.Key.UnicodeChar >= L'A' && KeyData.Key.UnicodeChar <= L'Z') {
|
|
KeyData.Key.UnicodeChar = (UINT16) (KeyData.Key.UnicodeChar - L'A' + L'a');
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// distinguish numeric key pad keys' 'up symbol' and 'down symbol'
|
|
//
|
|
if (ScanCode >= 0x47 && ScanCode <= 0x53) {
|
|
if (ConsoleIn->NumLock && !(ConsoleIn->LeftShift || ConsoleIn->RightShift) && !Extend0) {
|
|
KeyData.Key.ScanCode = SCAN_NULL;
|
|
} else if (ScanCode != 0x4a && ScanCode != 0x4e) {
|
|
KeyData.Key.UnicodeChar = CHAR_NULL;
|
|
}
|
|
}
|
|
|
|
//
|
|
// If the key can not be converted then just return.
|
|
//
|
|
if (KeyData.Key.ScanCode == SCAN_NULL && KeyData.Key.UnicodeChar == CHAR_NULL) {
|
|
if (!ConsoleIn->IsSupportPartialKey) {
|
|
return ;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Signal KeyNotify process event if this key pressed matches any key registered.
|
|
//
|
|
for (Link = GetFirstNode (&ConsoleIn->NotifyList); !IsNull (&ConsoleIn->NotifyList, Link); Link = GetNextNode (&ConsoleIn->NotifyList, Link)) {
|
|
CurrentNotify = CR (
|
|
Link,
|
|
KEYBOARD_CONSOLE_IN_EX_NOTIFY,
|
|
NotifyEntry,
|
|
KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE
|
|
);
|
|
if (IsKeyRegistered (&CurrentNotify->KeyData, &KeyData)) {
|
|
//
|
|
// The key notification function needs to run at TPL_CALLBACK
|
|
// while current TPL is TPL_NOTIFY. It will be invoked in
|
|
// KeyNotifyProcessHandler() which runs at TPL_CALLBACK.
|
|
//
|
|
PushEfikeyBufTail (&ConsoleIn->EfiKeyQueueForNotify, &KeyData);
|
|
gBS->SignalEvent (ConsoleIn->KeyNotifyProcessEvent);
|
|
}
|
|
}
|
|
|
|
PushEfikeyBufTail (&ConsoleIn->EfiKeyQueue, &KeyData);
|
|
}
|
|
|
|
/**
|
|
Perform 8042 controller and keyboard Initialization.
|
|
If ExtendedVerification is TRUE, do additional test for
|
|
the keyboard interface
|
|
|
|
@param ConsoleIn - KEYBOARD_CONSOLE_IN_DEV instance pointer
|
|
@param ExtendedVerification - indicates a thorough initialization
|
|
|
|
@retval EFI_DEVICE_ERROR Fail to init keyboard
|
|
@retval EFI_SUCCESS Success to init keyboard
|
|
**/
|
|
EFI_STATUS
|
|
InitKeyboard (
|
|
IN OUT KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,
|
|
IN BOOLEAN ExtendedVerification
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_STATUS Status1;
|
|
UINT8 CommandByte;
|
|
EFI_PS2_POLICY_PROTOCOL *Ps2Policy;
|
|
UINT32 TryTime;
|
|
|
|
Status = EFI_SUCCESS;
|
|
mEnableMouseInterface = TRUE;
|
|
TryTime = 0;
|
|
|
|
//
|
|
// Get Ps2 policy to set this
|
|
//
|
|
gBS->LocateProtocol (
|
|
&gEfiPs2PolicyProtocolGuid,
|
|
NULL,
|
|
(VOID **) &Ps2Policy
|
|
);
|
|
|
|
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
|
|
EFI_PROGRESS_CODE,
|
|
EFI_PERIPHERAL_KEYBOARD | EFI_P_KEYBOARD_PC_CLEAR_BUFFER,
|
|
ConsoleIn->DevicePath
|
|
);
|
|
|
|
//
|
|
// Perform a read to cleanup the Status Register's
|
|
// output buffer full bits within MAX TRY times
|
|
//
|
|
if ((KeyReadStatusRegister (ConsoleIn) & KEYBOARD_STATUS_REGISTER_HAS_OUTPUT_DATA) != 0) {
|
|
while (!EFI_ERROR (Status) && TryTime < KEYBOARD_MAX_TRY) {
|
|
Status = KeyboardRead (ConsoleIn, &CommandByte);
|
|
TryTime ++;
|
|
}
|
|
//
|
|
// Exceed the max try times. The device may be error.
|
|
//
|
|
if (TryTime == KEYBOARD_MAX_TRY) {
|
|
Status = EFI_DEVICE_ERROR;
|
|
goto Done;
|
|
}
|
|
}
|
|
//
|
|
// We should disable mouse interface during the initialization process
|
|
// since mouse device output could block keyboard device output in the
|
|
// 60H port of 8042 controller.
|
|
//
|
|
// So if we are not initializing 8042 controller for the
|
|
// first time, we have to remember the previous mouse interface
|
|
// enabling state
|
|
//
|
|
// Test the system flag in to determine whether this is the first
|
|
// time initialization
|
|
//
|
|
if ((KeyReadStatusRegister (ConsoleIn) & KEYBOARD_STATUS_REGISTER_SYSTEM_FLAG) != 0) {
|
|
if (!PcdGetBool (PcdFastPS2Detection)) {
|
|
//
|
|
// 8042 controller is already setup (by myself or by mouse driver):
|
|
// See whether mouse interface is already enabled
|
|
// which determines whether we should enable it later
|
|
//
|
|
//
|
|
// Read the command byte of 8042 controller
|
|
//
|
|
Status = KeyboardCommand (ConsoleIn, KEYBOARD_8042_COMMAND_READ);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"\n\r");
|
|
goto Done;
|
|
}
|
|
|
|
Status = KeyboardRead (ConsoleIn, &CommandByte);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"\n\r");
|
|
goto Done;
|
|
}
|
|
//
|
|
// Test the mouse enabling bit
|
|
//
|
|
if ((CommandByte & 0x20) != 0) {
|
|
mEnableMouseInterface = FALSE;
|
|
} else {
|
|
mEnableMouseInterface = TRUE;
|
|
}
|
|
} else {
|
|
mEnableMouseInterface = FALSE;
|
|
}
|
|
} else {
|
|
//
|
|
// 8042 controller is not setup yet:
|
|
// 8042 controller selftest;
|
|
// Don't enable mouse interface later.
|
|
//
|
|
//
|
|
// Disable keyboard and mouse interfaces
|
|
//
|
|
if (!PcdGetBool (PcdFastPS2Detection)) {
|
|
Status = KeyboardCommand (ConsoleIn, KEYBOARD_8042_COMMAND_DISABLE_KEYBOARD_INTERFACE);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"\n\r");
|
|
goto Done;
|
|
}
|
|
|
|
Status = KeyboardCommand (ConsoleIn, KEYBOARD_8042_COMMAND_DISABLE_MOUSE_INTERFACE);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"\n\r");
|
|
goto Done;
|
|
}
|
|
|
|
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
|
|
EFI_PROGRESS_CODE,
|
|
EFI_PERIPHERAL_KEYBOARD | EFI_P_KEYBOARD_PC_SELF_TEST,
|
|
ConsoleIn->DevicePath
|
|
);
|
|
//
|
|
// 8042 Controller Self Test
|
|
//
|
|
Status = KeyboardCommand (ConsoleIn, KEYBOARD_8042_COMMAND_CONTROLLER_SELF_TEST);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"8042 controller command write error!\n\r");
|
|
goto Done;
|
|
}
|
|
|
|
Status = KeyboardWaitForValue (ConsoleIn, 0x55);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"8042 controller self test failed!\n\r");
|
|
goto Done;
|
|
}
|
|
}
|
|
//
|
|
// Don't enable mouse interface later
|
|
//
|
|
mEnableMouseInterface = FALSE;
|
|
|
|
}
|
|
|
|
if (Ps2Policy != NULL) {
|
|
Ps2Policy->Ps2InitHardware (ConsoleIn->Handle);
|
|
}
|
|
//
|
|
// Write 8042 Command Byte, set System Flag
|
|
// While at the same time:
|
|
// 1. disable mouse interface,
|
|
// 2. enable kbd interface,
|
|
// 3. enable PC/XT kbd translation mode
|
|
// 4. enable mouse and kbd interrupts
|
|
//
|
|
// ( Command Byte bits:
|
|
// 7: Reserved
|
|
// 6: PC/XT translation mode
|
|
// 5: Disable Auxiliary device interface
|
|
// 4: Disable keyboard interface
|
|
// 3: Reserved
|
|
// 2: System Flag
|
|
// 1: Enable Auxiliary device interrupt
|
|
// 0: Enable Keyboard interrupt )
|
|
//
|
|
Status = KeyboardCommand (ConsoleIn, KEYBOARD_8042_COMMAND_WRITE);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"8042 controller command write error!\n\r");
|
|
goto Done;
|
|
}
|
|
|
|
Status = KeyboardWrite (ConsoleIn, 0x67);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"8042 controller data write error!\n\r");
|
|
goto Done;
|
|
}
|
|
|
|
//
|
|
// Clear Memory Scancode Buffer
|
|
//
|
|
ConsoleIn->ScancodeQueue.Head = 0;
|
|
ConsoleIn->ScancodeQueue.Tail = 0;
|
|
ConsoleIn->EfiKeyQueue.Head = 0;
|
|
ConsoleIn->EfiKeyQueue.Tail = 0;
|
|
ConsoleIn->EfiKeyQueueForNotify.Head = 0;
|
|
ConsoleIn->EfiKeyQueueForNotify.Tail = 0;
|
|
|
|
//
|
|
// Reset the status indicators
|
|
//
|
|
ConsoleIn->CapsLock = FALSE;
|
|
ConsoleIn->NumLock = FALSE;
|
|
ConsoleIn->ScrollLock = FALSE;
|
|
ConsoleIn->LeftCtrl = FALSE;
|
|
ConsoleIn->RightCtrl = FALSE;
|
|
ConsoleIn->LeftAlt = FALSE;
|
|
ConsoleIn->RightAlt = FALSE;
|
|
ConsoleIn->LeftShift = FALSE;
|
|
ConsoleIn->RightShift = FALSE;
|
|
ConsoleIn->LeftLogo = FALSE;
|
|
ConsoleIn->RightLogo = FALSE;
|
|
ConsoleIn->Menu = FALSE;
|
|
ConsoleIn->SysReq = FALSE;
|
|
|
|
ConsoleIn->IsSupportPartialKey = FALSE;
|
|
//
|
|
// For resetting keyboard is not mandatory before booting OS and sometimes keyboard responses very slow,
|
|
// and to support KB hot plug, we need to let the InitKB succeed no matter whether there is a KB device connected
|
|
// to system. So we only do the real resetting for keyboard when user asks and there is a real KB connected t system,
|
|
// and normally during booting an OS, it's skipped.
|
|
//
|
|
if (ExtendedVerification && CheckKeyboardConnect (ConsoleIn)) {
|
|
//
|
|
// Additional verifications for keyboard interface
|
|
//
|
|
//
|
|
// Keyboard Interface Test
|
|
//
|
|
Status = KeyboardCommand (ConsoleIn, KEYBOARD_8042_COMMAND_KEYBOARD_INTERFACE_SELF_TEST);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"8042 controller command write error!\n\r");
|
|
goto Done;
|
|
}
|
|
|
|
Status = KeyboardWaitForValue (ConsoleIn, 0x00);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (
|
|
ConsoleIn,
|
|
L"Some specific value not aquired from 8042 controller!\n\r"
|
|
);
|
|
goto Done;
|
|
}
|
|
//
|
|
// Keyboard reset with a BAT(Basic Assurance Test)
|
|
//
|
|
Status = KeyboardWrite (ConsoleIn, KEYBOARD_8048_COMMAND_RESET);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"8042 controller data write error!\n\r");
|
|
goto Done;
|
|
}
|
|
|
|
Status = KeyboardWaitForValue (ConsoleIn, KEYBOARD_8048_RETURN_8042_ACK);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"Some specific value not aquired from 8042 controller!\n\r");
|
|
goto Done;
|
|
}
|
|
//
|
|
// wait for BAT completion code
|
|
//
|
|
mWaitForValueTimeOut = KEYBOARD_BAT_TIMEOUT;
|
|
|
|
Status = KeyboardWaitForValue (ConsoleIn, KEYBOARD_8048_RETURN_8042_BAT_SUCCESS);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"Keyboard self test failed!\n\r");
|
|
goto Done;
|
|
}
|
|
|
|
mWaitForValueTimeOut = KEYBOARD_WAITFORVALUE_TIMEOUT;
|
|
|
|
//
|
|
// Set Keyboard to use Scan Code Set 2
|
|
//
|
|
Status = KeyboardWrite (ConsoleIn, KEYBOARD_8048_COMMAND_SELECT_SCAN_CODE_SET);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"8042 controller data write error!\n\r");
|
|
goto Done;
|
|
}
|
|
|
|
Status = KeyboardWaitForValue (ConsoleIn, KEYBOARD_8048_RETURN_8042_ACK);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"Some specific value not aquired from 8042 controller!\n\r");
|
|
goto Done;
|
|
}
|
|
|
|
Status = KeyboardWrite (ConsoleIn, 0x02);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"8042 controller data write error!!\n\r");
|
|
goto Done;
|
|
}
|
|
|
|
Status = KeyboardWaitForValue (ConsoleIn, KEYBOARD_8048_RETURN_8042_ACK);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"Some specific value not aquired from 8042 controller!\n\r");
|
|
goto Done;
|
|
}
|
|
|
|
//
|
|
// Clear Keyboard Scancode Buffer
|
|
//
|
|
Status = KeyboardWrite (ConsoleIn, KEYBOARD_8048_COMMAND_CLEAR_OUTPUT_DATA);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"8042 controller data write error!\n\r");
|
|
goto Done;
|
|
}
|
|
|
|
Status = KeyboardWaitForValue (ConsoleIn, KEYBOARD_8048_RETURN_8042_ACK);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"Some specific value not aquired from 8042 controller!\n\r");
|
|
goto Done;
|
|
}
|
|
//
|
|
if (Ps2Policy != NULL) {
|
|
if ((Ps2Policy->KeyboardLight & EFI_KEYBOARD_CAPSLOCK) == EFI_KEYBOARD_CAPSLOCK) {
|
|
ConsoleIn->CapsLock = TRUE;
|
|
}
|
|
|
|
if ((Ps2Policy->KeyboardLight & EFI_KEYBOARD_NUMLOCK) == EFI_KEYBOARD_NUMLOCK) {
|
|
ConsoleIn->NumLock = TRUE;
|
|
}
|
|
|
|
if ((Ps2Policy->KeyboardLight & EFI_KEYBOARD_SCROLLLOCK) == EFI_KEYBOARD_SCROLLLOCK) {
|
|
ConsoleIn->ScrollLock = TRUE;
|
|
}
|
|
}
|
|
//
|
|
// Update Keyboard Lights
|
|
//
|
|
Status = UpdateStatusLights (ConsoleIn);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"Update keyboard status lights error!\n\r");
|
|
goto Done;
|
|
}
|
|
}
|
|
//
|
|
// At last, we can now enable the mouse interface if appropriate
|
|
//
|
|
Done:
|
|
|
|
if (mEnableMouseInterface) {
|
|
//
|
|
// Enable mouse interface
|
|
//
|
|
Status1 = KeyboardCommand (ConsoleIn, KEYBOARD_8042_COMMAND_ENABLE_MOUSE_INTERFACE);
|
|
if (EFI_ERROR (Status1)) {
|
|
KeyboardError (ConsoleIn, L"8042 controller command write error!\n\r");
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
}
|
|
|
|
if (!EFI_ERROR (Status)) {
|
|
return EFI_SUCCESS;
|
|
} else {
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
Disable the keyboard interface of the 8042 controller.
|
|
|
|
@param ConsoleIn The device instance
|
|
|
|
@return status of issuing disable command
|
|
|
|
**/
|
|
EFI_STATUS
|
|
DisableKeyboard (
|
|
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
//
|
|
// Disable keyboard interface
|
|
//
|
|
Status = KeyboardCommand (ConsoleIn, KEYBOARD_8042_COMMAND_DISABLE_KEYBOARD_INTERFACE);
|
|
if (EFI_ERROR (Status)) {
|
|
KeyboardError (ConsoleIn, L"\n\r");
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
Check whether there is Ps/2 Keyboard device in system by 0xF4 Keyboard Command
|
|
If Keyboard receives 0xF4, it will respond with 'ACK'. If it doesn't respond, the device
|
|
should not be in system.
|
|
|
|
@param[in] ConsoleIn Keyboard Private Data Structure
|
|
|
|
@retval TRUE Keyboard in System.
|
|
@retval FALSE Keyboard not in System.
|
|
**/
|
|
BOOLEAN
|
|
EFIAPI
|
|
CheckKeyboardConnect (
|
|
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
UINTN WaitForValueTimeOutBcakup;
|
|
|
|
//
|
|
// enable keyboard itself and wait for its ack
|
|
// If can't receive ack, Keyboard should not be connected.
|
|
//
|
|
if (!PcdGetBool (PcdFastPS2Detection)) {
|
|
Status = KeyboardWrite (
|
|
ConsoleIn,
|
|
KEYBOARD_KBEN
|
|
);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return FALSE;
|
|
}
|
|
//
|
|
// wait for 1s
|
|
//
|
|
WaitForValueTimeOutBcakup = mWaitForValueTimeOut;
|
|
mWaitForValueTimeOut = KEYBOARD_WAITFORVALUE_TIMEOUT;
|
|
Status = KeyboardWaitForValue (
|
|
ConsoleIn,
|
|
KEYBOARD_CMDECHO_ACK
|
|
);
|
|
mWaitForValueTimeOut = WaitForValueTimeOutBcakup;
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
} else {
|
|
return TRUE;
|
|
}
|
|
}
|
|
|