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Diffstat (limited to 'SrcShared/Hardware/TRG/EmRegs330CPLD.cpp')
| -rw-r--r-- | SrcShared/Hardware/TRG/EmRegs330CPLD.cpp | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/SrcShared/Hardware/TRG/EmRegs330CPLD.cpp b/SrcShared/Hardware/TRG/EmRegs330CPLD.cpp new file mode 100644 index 0000000..bc1ed57 --- /dev/null +++ b/SrcShared/Hardware/TRG/EmRegs330CPLD.cpp @@ -0,0 +1,263 @@ +/* -*- 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; + } +} + |