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/* -*- mode: C++; tab-width: 4 -*- */
/* ===================================================================== *\
Copyright (c) 2000-2001 Palm, Inc. or its subsidiaries.
All rights reserved.
This file is part of the Palm OS Emulator.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
\* ===================================================================== */
#include "EmCommon.h"
#include "EmRegs330CPLD.h"
#include "EmHAL.h" // EmHAL::LineDriverChanged
#include "EmHandEra330Defs.h"
#include "EmMemory.h"
#include "EmScreen.h" // EmScreenUpdateInfo
/*****************************************************************************
* The HandEra 330 uses a CPLD for additional GPIO
* This includes:
* CF & SD bus control, keyboard row drivers, LCD control, Backlight, IRDA,
* RS232 DTR signal, current vs voltage sense, and audio control.
*
* POSE needs to know about LCD, backlight, keyboard, and current sense so these
* are stored in an external HandEra330PortManager class that the EmRegsVZHandEra330
* class can get the values from.
****************************************************************************/
// ---------------------------------------------------------------------------
// ¥ EmRegs330CPLD::EmRegs330CPLD
// ---------------------------------------------------------------------------
EmRegs330CPLD::EmRegs330CPLD (HandEra330PortManager * fPortManager)
{
Reg0 = Cpld0Edo;
Reg2 = Cpld2CfDetect |
Cpld2NoSdDetect |
Cpld2NoExPwrDetect |
Cpld2SdUnwriteProt |
Cpld2SdPowerOff |
Cpld2Kbd3Inactive |
Cpld2Kbd2Inactive |
Cpld2Kbd1Inactive |
Cpld2Kbd0Inactive |
Cpld2NoReset |
Cpld2CfBufsOff |
Cpld2SwapOff |
Cpld2CfPowerOff |
Cpld2BusWidth16;
Reg4 = Cpld4LcdBiasOff |
Cpld4LcdVccOn |
Cpld4LcdOff |
Cpld4BlPdOff |
Cpld4DtrOff |
Cpld4MmcCsOn |
Cpld4FiltSdOff |
Cpld4Rs232Off |
Cpld4IrdaOff |
Cpld4MicOff |
Cpld4SenseVoltage;
fPortMgr = fPortManager;
}
// ---------------------------------------------------------------------------
// ¥ EmRegs330CPLD::~EmRegs330CPLD
// ---------------------------------------------------------------------------
EmRegs330CPLD::~EmRegs330CPLD (void)
{
}
void EmRegs330CPLD::Reset(Bool /*hardwareReset*/)
{
fPortMgr->Keys.Row[0] = 1;
fPortMgr->Keys.Row[1] = 1;
fPortMgr->Keys.Row[2] = 1;
fPortMgr->Keys.Row[3] = 1;
fPortMgr->LCDOn = false;
fPortMgr->BacklightOn = false;
fPortMgr->IRPortOn = false;
fPortMgr->CFBus.bEnabled = false;
fPortMgr->CFBus.Width = kCFBusWidth16;
fPortMgr->CFBus.bSwapped = false;
fPortMgr->pendingIRQ2 = false;
fPortMgr->SDChipSelect = false;
fPortMgr->PowerConnected = false;
}
// -------------------------------------------------------------------------
// ¥ EmRegs330CPLD::SetSubBankHandlers
// ---------------------------------------------------------------------------
void EmRegs330CPLD::SetSubBankHandlers (void)
{
// Install base handlers.
EmRegs::SetSubBankHandlers();
// Now add standard/specialized handers for the defined registers.
this->SetHandler((ReadFunction)&EmRegs330CPLD::Read,
(WriteFunction)&EmRegs330CPLD::Write,
kMemoryStartCPLD,
kMemorySizeCPLD);
}
// ---------------------------------------------------------------------------
// ¥ EmRegs330CPLD::GetRealAddress
// ---------------------------------------------------------------------------
uint8 * EmRegs330CPLD::GetRealAddress (emuptr address)
{
return (address-kMemoryStartCPLD) + Buffer;
}
// ---------------------------------------------------------------------------
// ¥ EmRegs330CPLD::GetWord
// ---------------------------------------------------------------------------
uint32 EmRegs330CPLD::GetWord (emuptr address)
{
uint32 offset = address - kMemoryStartCPLD;
switch (offset)
{
case CpldReg00 :
return Cpld0Edo;
case CpldReg02 :
if (fPortMgr->CFInserted)
Reg2 &= ~Cpld2NoCfDetect;
else
Reg2 |= Cpld2NoCfDetect;
if (fPortMgr->SDInserted)
Reg2 &= ~Cpld2NoSdDetect;
else
Reg2 |= Cpld2NoSdDetect;
if (fPortMgr->PowerConnected)
Reg2 &= ~Cpld2NoExPwrDetect;
else
Reg2 |= Cpld2NoExPwrDetect;
return (Reg2);
case CpldReg04 :
return (Reg4);
default :
return 0;
}
}
// ---------------------------------------------------------------------------
// ¥ EmRegs330CPLD::SetWord
// ---------------------------------------------------------------------------
void EmRegs330CPLD::SetWord (emuptr address, uint32 val)
{
uint32 offset = address - kMemoryStartCPLD;
switch (offset)
{
case CpldReg00 :
fPortMgr->pendingIRQ2 = false;
break;
case CpldReg02 :
Reg2 = (val & 0x0fff) | (Reg2 & 0xf000); // top 4 bits are read only.
// keys:
fPortMgr->Keys.Row[3] = (Reg2 & Cpld2Kbd3Inactive) ? 0 : 1;
fPortMgr->Keys.Row[2] = (Reg2 & Cpld2Kbd2Inactive) ? 0 : 1;
fPortMgr->Keys.Row[1] = (Reg2 & Cpld2Kbd1Inactive) ? 0 : 1;
fPortMgr->Keys.Row[0] = (Reg2 & Cpld2Kbd0Inactive) ? 0 : 1;
// CF:
fPortMgr->CFBus.bEnabled = (Reg2 & Cpld2CfBufsOn);
if (Reg2 & Cpld2BusWidth8)
{
fPortMgr->CFBus.Width = kCFBusWidth8;
// HandEra330 byte swapping is not the same as the TRGpro when
// in byte mode. On the TRGpro it must be enabled to access bytes
// correctly, on the 330 it will work either way...
// Fudge it here to be the same as TRGpro so code can be shared.
fPortMgr->CFBus.bSwapped = true;
}
else
{
fPortMgr->CFBus.Width = kCFBusWidth16;
fPortMgr->CFBus.bSwapped = (Reg2 & Cpld2SwapOn);
}
break;
case CpldReg04 :
Bool backlightWasOn = fPortMgr->BacklightOn;
Bool lcdWasOn = fPortMgr->LCDOn;
Bool irWasOn = fPortMgr->IRPortOn;
Reg4 = val;
fPortMgr->LCDOn = (Reg4 & Cpld4LcdBiasOn);
fPortMgr->BacklightOn = (Reg4 & Cpld4BlPdOn);
fPortMgr->IRPortOn = (Reg4 & Cpld4IrdaOff) == 0;
fPortMgr->SenseCurrent = (Reg4 & Cpld4SenseCurrent);
fPortMgr->SDChipSelect = ((Reg4 & Cpld4MmcCsOn) == 0);
if ((fPortMgr->LCDOn != lcdWasOn) || (fPortMgr->BacklightOn != backlightWasOn))
EmScreen::InvalidateAll ();
if (irWasOn != fPortMgr->IRPortOn)
EmHAL::LineDriverChanged (kUARTIR);
break;
}
}
// ---------------------------------------------------------------------------
// ¥ EmRegs330CPLD::GetAddressStart
// ---------------------------------------------------------------------------
emuptr EmRegs330CPLD::GetAddressStart (void)
{
return (kMemoryStartCPLD);
}
// ---------------------------------------------------------------------------
// ¥ EmRegs330CPLD::GetAddressRange
// ---------------------------------------------------------------------------
uint32 EmRegs330CPLD::GetAddressRange (void)
{
return kMemorySizeCPLD;
}
// ---------------------------------------------------------------------------
// ¥ EmRegs330CPLD::Read
// ---------------------------------------------------------------------------
uint32 EmRegs330CPLD::Read(emuptr address, int size)
{
switch(size)
{
// case sizeof(uint8) :
// return(GetByte(address));
case sizeof(uint16) :
return(GetWord(address));
}
return 0;
}
// ---------------------------------------------------------------------------
// ¥ EmRegs330CPLD::Write
// ---------------------------------------------------------------------------
void EmRegs330CPLD::Write(emuptr address, int size, uint32 val)
{
switch(size)
{
// case sizeof(uint8) :
// SetByte(address, val);
// break;
case sizeof(uint16) :
SetWord(address, val);
break;
}
}
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