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|
//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2011, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
// $Header: /Alaska/SOURCE/Modules/KbcEmulation/ALASKA/KBCEMUL/Legacykbd.c 4 6/27/12 1:30a Jittenkumarp $
//
// $Revision: 4 $
//
// $Date: 6/27/12 1:30a $
//
//****************************************************************************
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/KbcEmulation/ALASKA/KBCEMUL/Legacykbd.c $
//
// 4 6/27/12 1:30a Jittenkumarp
// [TAG] EIP89838
// [Category] Improvement
// [Description] KbcEmulation module can't changed NUM LOCK ,CAPS
// LOCK,Scroll lock LED.
// [Files] Legacykbd.c
//
// 3 2/10/11 1:04a Rameshr
// [TAG] EIP53687
// [Category] Improvement
// [Description] AMI headers update for KbcEmulation Module
// [Files] KbcEmul.mak,KbcEmul.dxs,KbcEmul.c,KbcEmul.h,KbcEmulLib.h,Kbc
// EmulLib.c,Kbc.h,KbcDevEmul.h,Kbccore.c,Legacykbc.c,Legacykbd.c,LegacyMo
// use.c,VirtualKbc.c,VirtualKbd.c,VirtualMouse.c,Ap4x.h,Ap4x.c,KbcUhci.c,
// KbcUhci.h,KbcEmulIrq.c, KbcOhci.c, Kbcohci.h
//
// 2 6/30/09 11:31a Rameshr
// Coding Standard and File header updated.
//
// 1 12/14/07 10:26a Rameshraju
// Initial Check-in
//****************************************************************************
//<AMI_FHDR_START>
//****************************************************************************
// Name: LegacyKbd.c
//
// Description: Legacy Keyboard functions
//
//****************************************************************************
//<AMI_FHDR_END>
#include "KbcEmul.h"
#include "KbcDevEmul.h"
#include "KbcEmulLib.h"
void LegacyKbd_initParams(LEGACYKBD* kbd);
void LegacyKbd_read_codes(PS2SINK* ps2dev, UINT8 cmd );
void LegacyKbd_read_option(PS2SINK* ps2dev, UINT8 cmd );
void LegacyKbd_rw_scancode(PS2SINK* ps2dev, UINT8 cmd );
void LegacyKbd_send_resp(LEGACYKBD* mouse, UINT8* data, int count );
BOOLEAN KBC_WaitForInputBufferToBeFree ();
BOOLEAN KBC_WaitForOutputBufferToBeFilled ();
UINT8 KBC_ReadDataByte ();
void KBC_WriteSubCommandByte(UINT8 bCmd);
void KBC_WriteCommandByte(UINT8 bCmd);
#define COUNTOF(x) (sizeof(x)/sizeof(x[0]))
static UINT8 ackResp[] = {0xFA};
static UINT8 ResetResp[] = {0xFA,0xAA};
static UINT8 IdResp[] = {0xFA,0xAB, 0x41};
static UINT8 ScanCodePageResp[] = {0xFA, 0x00};
static UINT8 CmdED = 0;
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: Legacykbd_scanning
//
// Description: Handle commands sent from KBC to PS2 Keyboard. Keyboard is scanning or idle, waiting for command
// or key
//
// Input: ps2dev - pointer to the KBD structure
// Cmd - Data from the kbc buffer
//
// Output: None
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
void Legacykbd_scanning(PS2SINK* ps2dev, UINT8 cmd )
{
LEGACYKBD* kbd = _CR(ps2dev,LEGACYKBD,sink);
switch(cmd){
case 0xFF: //reset
LegacyKbd_initParams(kbd);
LegacyKbd_send_resp(kbd, ResetResp,COUNTOF(ResetResp));
break;
case 0xFD:
case 0xFC:
case 0xFB:
LegacyKbd_send_resp(kbd, ackResp,COUNTOF(ackResp));
kbd->read_code_action = cmd;
kbd->sink.onCommand = LegacyKbd_read_codes;
break;
case 0xFA:
case 0xF9:
case 0xF8:
case 0xF7:
case 0xF6:
case 0xF5: //Disable
case 0xF4: //Enable
LegacyKbd_send_resp(kbd, ackResp,COUNTOF(ackResp));
break;
case 0xF3: //Set Typeatic Rate/Delay
LegacyKbd_send_resp(kbd, ackResp,COUNTOF(ackResp));
kbd->sink.onCommand = LegacyKbd_read_option;
kbd->option_ptr = &kbd->typematicRateDelay;
break;
case 0xF2:
LegacyKbd_send_resp(kbd, IdResp,COUNTOF(IdResp));
break;
case 0xF0:
LegacyKbd_send_resp(kbd, ackResp,COUNTOF(ackResp));
kbd->sink.onCommand = LegacyKbd_rw_scancode;
kbd->option_ptr = &kbd->scancodepage;
break;
case 0xEE: //Echo
LegacyKbd_send_resp(kbd, &cmd,1);
break;
case 0xED: //LED
LegacyKbd_send_resp(kbd, ackResp,COUNTOF(ackResp));
kbd->sink.onCommand = LegacyKbd_read_option;
kbd->option_ptr = &kbd->typematicRateDelay;
CmdED = 1;
break;
}
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: LegacyKbd_read_codes
//
// Description: Keyboard Read Codes.
//
// Input: ps2dev - pointer to the KBD structure
// Cmd - Data from the kbc buffer
//
// Output: None
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
void LegacyKbd_read_codes(PS2SINK* ps2dev, UINT8 cmd )
{
LEGACYKBD* kbd = _CR(ps2dev,LEGACYKBD,sink);
if( cmd >= 0xED ){
kbd->sink.onCommand = Legacykbd_scanning;
Legacykbd_scanning(ps2dev,cmd);
} else
LegacyKbd_send_resp(kbd, ackResp,COUNTOF(ackResp));
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: LegacyKbd_read_option
//
// Description: Keyboard Read option.
//
// Input: ps2dev - pointer to the KBD structure
// Cmd - Data from the kbc buffer
//
// Output: None
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
void LegacyKbd_read_option(PS2SINK* ps2dev, UINT8 cmd )
{
LEGACYKBD* kbd = _CR(ps2dev,LEGACYKBD,sink);
UINT8* fPtr;
kbd->sink.onCommand = Legacykbd_scanning;
if (CmdED == 1) {
fPtr = (UINT8*)(UINTN)0x417;
*fPtr &= ~0x70;
*fPtr |= ((cmd & 0x07) << 4);
CmdED = 0;
LegacyKbd_send_resp(kbd, ackResp,COUNTOF(ackResp));
} else {
if (cmd > 0xED) {
Legacykbd_scanning(ps2dev,cmd);
} else {
*(kbd->option_ptr) = cmd;
LegacyKbd_send_resp(kbd, ackResp,COUNTOF(ackResp));
}
}
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: LegacyKbd_rw_scancode
//
// Description: Keyboard Read write Scan code.
//
// Input: ps2dev - pointer to the KBD structure
// Cmd - Data from the kbc buffer
//
// Output: None
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
void LegacyKbd_rw_scancode(PS2SINK* ps2dev, UINT8 cmd )
{
LEGACYKBD* kbd = _CR(ps2dev,LEGACYKBD,sink);
if(cmd != 0 )
LegacyKbd_read_option(ps2dev,cmd);
else {
kbd->sink.onCommand = Legacykbd_scanning;
ScanCodePageResp[1] = kbd->scancodepage;
LegacyKbd_send_resp(kbd, ScanCodePageResp,COUNTOF(ScanCodePageResp));
}
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: LegacyKbd_send_resp
//
// Description: Place the Responce bytes in the keyboard buffer.
//
// Input: ps2dev - pointer to the KBD structure
// Data - Pointer to the Data
// count - Length of the data
//
// Output: None
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
void LegacyKbd_send_resp(LEGACYKBD* kbd, UINT8* data, int count )
{
//
//When there is no PS2 Keyboard present in the system, Emulation should send the responce byte for the keyboard command.
//If PS2 Keyboard present, it will send the responce to the KBC. So Emulation code doesn't need to responce it.
//
if(!kbd->sink.present_ ){
//
// Emulation must provide the responce. Override any previos kbd data queued to KBC
//
kbd->qtail = kbd->qhead = kbd->queue;
for( ; count > 0; --count ){
*kbd->qtail++ = *data++;
}
//
// push the first byte to the KBC
//
if( kbd->qhead != kbd->qtail &&
kbd->sink.kbc->send_outb1(kbd->sink.kbc,
PS2DEV_KBD,TRUE,*kbd->qhead))
{
if(++kbd->qhead >= kbd->queue+KBDQUEUE_SIZE)
kbd->qhead = kbd->queue; }
}
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: LegacyKbd_pumpQueue
//
// Description: KBC has empty queue; Legacy I/O trapping is being processed.If Kbd has data to push into KBC,
// now is a good time to do it
//
// Input: ps2dev - pointer to the KBD structure
//
// Output: None
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
void LegacyKbd_pumpQueue(PS2SINK* ps2dev)
{
LEGACYKBD* kbd = _CR(ps2dev,LEGACYKBD,sink);
//
//send the Keyboard data to the KBC
//
if( kbd->qhead != kbd->qtail &&
ps2dev->kbc->send_outb1(ps2dev->kbc,PS2DEV_KBD,FALSE,*kbd->qhead))
{
if(++kbd->qhead >= kbd->queue+KBDQUEUE_SIZE)
kbd->qhead = kbd->queue;
}
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: LegacykbdInput_Send
//
// Description: Keyboard Input source sends data. Put the data into the buffer, attempt to send the first byte.
// The call comes outside of Trapping Leg access. Check that Trapping status will not be overriden
//
// Input: P - pointer to the Emulation Protocol
// Buffer - Data buffer
// Count - Buffer Length
//
// Output: None
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS LegacykbdInput_Send(EFI_EMUL6064KBDINPUT_PROTOCOL* p, UINT8* buffer, UINT32 count)
{
LEGACYKBD* kbd = _CR(p,LEGACYKBD,kbdInput_);
UINTN c = 0;
//
// count of free items in the queue
//
if( kbd->qtail >= kbd->qhead )
c = KBDQUEUE_SIZE - (kbd->qtail - kbd->qhead);
else
c = kbd->qhead - kbd->qtail -1;
if(c < count )
return EFI_NOT_AVAILABLE_YET;
for( ; count > 0; --count ){
*kbd->qtail++ = *buffer++;
if(kbd->qtail >= kbd->queue+KBDQUEUE_SIZE)
kbd->qtail = kbd->queue;
}
//
// Disable trap to access real harware
//
TrapEnable(FALSE);
LegacyKbd_pumpQueue(&kbd->sink);
//
// Enable trap back and clear statuses
//
TrapEnable(TRUE);
return EFI_SUCCESS;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: LegacykbdInput_GetTranslation
//
// Description: KBC translation
//
// Input: P - pointer to the Emulation Protocol
//
// Output: None
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS LegacykbdInput_GetTranslation(
EFI_EMUL6064KBDINPUT_PROTOCOL* p,
OUT KBC_KBDTRANSLATION* outTrans )
{
LEGACYKBD* kbd = _CR(p,LEGACYKBD,kbdInput_);
*outTrans = (kbd->sink.kbc->read_ccb(kbd->sink.kbc) & KBC_CCB_XLAT) != 0?
KBC_KBDTRANS_PCXT : KBC_KBDTRANS_AT;
return EFI_SUCCESS;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: LegacykbdInput_updateLED
//
// Description: Update the keyboard LED's
//
// Input: P - pointer to the Emulation Protocol
// Data - LED data
//
// Output: None
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS LegacykbdInput_updateLED(
EFI_EMUL6064KBDINPUT_PROTOCOL* p,
IN UINT8 data )
{
UINT8 bKBData = 0;
UINT8 bSave;
//
// Disable trap to access real harware
//
TrapEnable(FALSE);
//
// Wait for input buffer to be free
//
KBC_WaitForInputBufferToBeFree();
KBC_WriteCommandByte(KBCCMD_LOCK);
bSave = ByteReadIO(KBC_STATUS_REG);
//
// Data is pending. Read it in AL
//
if(bSave & KBC_STATUS_OBF)
{
bKBData = ByteReadIO(KBC_DATA_REG);
}
KBC_WriteCommandByte(0xAE);
KBC_WriteSubCommandByte(0xED);
KBC_ReadDataByte();
KBC_WriteSubCommandByte(data);
KBC_ReadDataByte();
if(bSave & KBC_STATUS_OBF){
KBC_WriteCommandByte(bSave & KBC_STATUS_AUXB? 0xD3: 0xD2);
KBC_WriteSubCommandByte(bKBData);
}
//
// Enable trap back and clear statuses
//
TrapEnable(TRUE);
return EFI_SUCCESS;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: LegacyKbd_initParams
//
// Description: Initialize the KBD data
//
// Input: kbd - Pointer to the KBD structure
//
// Output: None
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
void LegacyKbd_initParams(LEGACYKBD* kbd)
{
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: InitLegacyKbd
//
// Description: Initialize the KBD data
//
// Input: kbc - pointer to the KBC Structure
// kbd - Pointer to the KBD structure
//
// Output: None
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
void InitLegacyKbd(KBC* kbc, LEGACYKBD* kbd )
{
EFI_HANDLE hEmulationService = 0;
kbd->qhead = kbd->qtail = kbd->queue;
kbd->sink.kbc = kbc;
kbd->sink.onCommand = Legacykbd_scanning;
kbd->sink.onQueueFree = LegacyKbd_pumpQueue;
kbd->kbdInput_.Send = LegacykbdInput_Send;
kbd->kbdInput_.GetTranslation = LegacykbdInput_GetTranslation;
kbd->kbdInput_.UpdateLEDState = LegacykbdInput_updateLED;
VERIFY_EFI_ERROR(
gBS->InstallProtocolInterface(&hEmulationService,
&gEmul6064KbdInputProtocolGuid,EFI_NATIVE_INTERFACE,(void*)&kbd->kbdInput_));
}
//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2011, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
|
