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Diffstat (limited to 'SrcShared/Hardware/EmRegsVZVisorPrism.cpp')
| -rw-r--r-- | SrcShared/Hardware/EmRegsVZVisorPrism.cpp | 393 |
1 files changed, 393 insertions, 0 deletions
diff --git a/SrcShared/Hardware/EmRegsVZVisorPrism.cpp b/SrcShared/Hardware/EmRegsVZVisorPrism.cpp new file mode 100644 index 0000000..6c73779 --- /dev/null +++ b/SrcShared/Hardware/EmRegsVZVisorPrism.cpp @@ -0,0 +1,393 @@ +/* -*- mode: C++; tab-width: 4 -*- */ +/* ===================================================================== *\ + Copyright (c) 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 "EmRegsVZVisorPrism.h" +#include "EmRegsVZPrv.h" + +#include "EmRegsSED1376.h" // SED1376 video controller register access + +#include "EmSession.h" // GetDevice +#include "EmDevice.h" // HardwareID + + +// Prism pin definitions from Handspring. Mostly the same as a Palm V, +// but with some pins changed and moved around. + + +/************************************************************************ + * Port B Bit settings + ************************************************************************/ +#define hwrVisorPrismPortBLCDVccOff 0x08 // (L) LCD Vcc +#define hwrVisorPrismPortBLCDAdjOn 0x40 // (H) LCD Contrast Voltage + + +/************************************************************************ + * Port C Bit settings + ************************************************************************/ +#define hwrVisorPrismPortCLCDEnableOn 0x80 // (H) LCD Enable + + +/************************************************************************ + * Port D Bit settings + ************************************************************************/ +#define hwrVisorPrismPortDKbdCol0On 0x01 // (H) Keyboard Column 0 +#define hwrVisorPrismPortDKbdCol1On 0x02 // (H) Keyboard Column 1 +#define hwrVisorPrismPortDKbdCol2On 0x04 // (H) Keyboard Column 2 + +// Not here! See hwrVisorPrismPortKKbdRow2 +// #define hwrVisorPrismPortDKbdRow2 0x08 // (H) Keyboard Row 2 + +#define hwrVisorPrismPortDDock1IrqOff 0x10 // (L) Dock1 interrupt +#define hwrVisorPrismPortDSlotIrqOff 0x20 // (L) Slot Interrupt +#define hwrVisorPrismPortDUsbIrqOff 0x40 // (L) USB Interrupt +#define hwrVisorPrismPortDCardInstIrqOff 0x80 // (L) Card Installed Interrupt + +#define hwrVisorPrismPortDKeyBits 0x07 // (H) All Keyboard Columns + + + +/************************************************************************ + * Port E Bit settings + ************************************************************************/ +#define hwrVisorPrismPortESerialTxD 0x20 // ( ) Serial transmit line +#define hwrVisorPrismPortESlotResetOff 0x40 // (L) Slot reset +#define hwrVisorPrismPortEDock2Off 0x80 // (L) Dock2 input + + +/************************************************************************ + * Port F Bit settings + ************************************************************************/ +#define hwrVisorPrismPortFContrast 0x01 // ( ) LCD Contrast PWM output +#define hwrVisorPrismPortFIREnableOff 0x04 // (L) Shutdown IR +#define hwrVisorPrismPortFUsbCsOff 0x80 // (L) USB chip select + + +/************************************************************************ + * Port G Bit settings + ************************************************************************/ +#define hwrVisorPrismPortGBacklightOff 0x01 // (L) Backlight on/off +#define hwrVisorPrismPortGUSBSuspend 0x02 // (X) USB Suspend bit - Output low for active + // - Input for suspend +#define hwrVisorPrismPortGPowerFailIrqOff 0x04 // (L) Power Fail IRQ +#define hwrVisorPrismPortGKbdRow0 0x08 // (H) Keyboard Row 0 +#define hwrVisorPrismPortGKbdRow1 0x10 // (H) Keyboard Row 1 +#define hwrVisorPrismPortGAdcCsOff 0x20 // (L) A/D Select + + +/************************************************************************ + * Port J Bit settings + ************************************************************************/ +#define hwrVisorPrismPortJEepromDi 0x01 // (H) EEPROM Data in +#define hwrVisorPrismPortJEepromDo 0x02 // ( ) EEPROM Data out +#define hwrVisorPrismPortJEepromSkOn 0x04 // (H) EEPROM Clock +#define hwrVisorPrismPortJEepromCsOn 0x08 // (H) EEPROM Chip Select +#define hwrVisorPrismPortJUnused4 0x10 // (H) unused GPIO +#define hwrVisorPrismPortJUnused5 0x20 // (H) unused GPIO +#define hwrVisorPrismPortJUnused6 0x40 // (H) unused GPIO +#define hwrVisorPrismPortJUnused7 0x80 // (H) unused GPIO + + +/************************************************************************ + * Port K Bit settings + ************************************************************************/ +#define hwrVisorPrismPortKBrightnessPWMOff 0x01 // (L) Brightness PWM output +#define hwrVisorPrismPortKKbdRow2 0x02 // (H) Keyboard Row 2 +#define hwrVisorPrismPortKUnused2 0x04 // (X) unused GPIO +#define hwrVisorPrismPortKIREnableBOff 0x08 // (L) Shutdown IR on DVT and later + +#define hwrVisorPrismPortKLcdResetOff 0x10 // (L) LCD reset +#define hwrVisorPrismPortKIREnableAOff 0x20 // (L) Shutdown IR on pre-DVT +#define hwrVisorPrismPortKUnused6 0x40 // (H) unused GPIO +#define hwrVisorPrismPortKUsbResetOff 0x80 // (L) USB reset + + +/************************************************************************ + * Port M Bit settings + ************************************************************************/ + + + +/************************************************************************ + * Hard key settings + ************************************************************************/ + +const int kNumButtonRows = 3; +const int kNumButtonCols = 3; + +const uint16 kButtonMap[kNumButtonRows][kNumButtonCols] = +{ + { keyBitHard1, keyBitHard2, keyBitHard3 }, + { keyBitPageUp, keyBitPageDown, 0 }, + { keyBitPower, keyBitHard4, 0 } +}; + + + +// --------------------------------------------------------------------------- +// ¥ EmRegsVZVisorPrism::GetLCDScreenOn +// --------------------------------------------------------------------------- + +Bool EmRegsVZVisorPrism::GetLCDScreenOn (void) +{ + // Override the Dragonball version and let the SED 1376 handle it. + + return EmHALHandler::GetLCDScreenOn (); +} + + +// --------------------------------------------------------------------------- +// ¥ EmRegsVZVisorPrism::GetLCDBacklightOn +// --------------------------------------------------------------------------- + +Bool EmRegsVZVisorPrism::GetLCDBacklightOn (void) +{ + // Override the Dragonball version and let the SED 1376 handle it. + + return EmHALHandler::GetLCDBacklightOn (); +} + + +// --------------------------------------------------------------------------- +// ¥ EmRegsVZVisorPrism::GetLCDHasFrame +// --------------------------------------------------------------------------- + +Bool EmRegsVZVisorPrism::GetLCDHasFrame (void) +{ + // Override the Dragonball version and let the SED 1376 handle it. + + return EmHALHandler::GetLCDHasFrame (); +} + + +// --------------------------------------------------------------------------- +// ¥ EmRegsVZVisorPrism::GetLCDBeginEnd +// --------------------------------------------------------------------------- + +void EmRegsVZVisorPrism::GetLCDBeginEnd (emuptr& begin, emuptr& end) +{ + // Override the Dragonball version and let the SED 1376 handle it. + + EmHALHandler::GetLCDBeginEnd (begin, end); +} + + +// --------------------------------------------------------------------------- +// ¥ EmRegsVZVisorPrism::GetLCDScanlines +// --------------------------------------------------------------------------- + +void EmRegsVZVisorPrism::GetLCDScanlines (EmScreenUpdateInfo& info) +{ + // Override the Dragonball version and let the SED 1376 handle it. + + EmHALHandler::GetLCDScanlines (info); +} + + +// --------------------------------------------------------------------------- +// ¥ EmRegsVZVisorPrism::GetLineDriverState +// --------------------------------------------------------------------------- +// Return whether or not the line drivers for the given object are open or +// closed. +// +// DOLATER BP: this way of detecting SerialPortOn may be wrong. +// See PalmIIIc or PalmV. It may impact Visor emulation as well + +Bool EmRegsVZVisorPrism::GetLineDriverState (EmUARTDeviceType type) +{ + if (type == kUARTSerial) + { + uint16 uControl = READ_REGISTER (uControl); + uint16 uMisc = READ_REGISTER (uMisc); + + return (uControl & hwrEZ328UControlUARTEnable) != 0 && + (uMisc & hwrEZ328UMiscIRDAEn) == 0; + } + + if (type == kUARTIR) + { + uint16 uControl = READ_REGISTER (uControl); + uint16 uMisc = READ_REGISTER (uMisc); + + return (uControl & hwrEZ328UControlUARTEnable) != 0 && + (uMisc & hwrEZ328UMiscIRDAEn) != 0; + } + + return false; +} + + +// --------------------------------------------------------------------------- +// ¥ EmRegsVZVisorPrism::GetUARTDevice +// --------------------------------------------------------------------------- +// Return what sort of device is hooked up to the given UART. + +EmUARTDeviceType EmRegsVZVisorPrism::GetUARTDevice (int /*uartNum*/) +{ + Bool serEnabled = this->GetLineDriverState (kUARTSerial); + Bool irEnabled = this->GetLineDriverState (kUARTIR); + + // It's probably an error to have them both enabled at the same + // time. !!! TBD: make this an error message. + + EmAssert (!(serEnabled && irEnabled)); + + // !!! Which UART are they using? + +// if (uartNum == ???) + { + if (serEnabled) + return kUARTSerial; + + if (irEnabled) + return kUARTIR; + } + + return kUARTNone; +} + + +// --------------------------------------------------------------------------- +// ¥ EmRegsVZVisorPrism::GetPortInputValue +// +// Returns the GPIO value of the given port. +// --------------------------------------------------------------------------- + +uint8 EmRegsVZVisorPrism::GetPortInputValue (int port) +{ + uint8 result = EmRegsVZ::GetPortInputValue (port); + + if (port == 'E') + { + /* + Support the Visor model ID. From Bob Petersen at Handspring: + + The Visor ROM only works with 1 device so far. But, the Visor does have + model detect pins so that future ROMs can work on multiple platforms. The + model input pins are connected to port E, bits 0-2 (E[0-2]). To read them, + you have to drive port G bit 2 low and enable the pullups on port E. + */ + +#define modelOutPin 0x04 // EMUIRQ (IRQ7) +#define modelInPins 0x07 // SPI pins on Visor + + UInt8 portGData = READ_REGISTER (portGData); + UInt8 portGDir = READ_REGISTER (portGDir); + UInt8 portGSelect = READ_REGISTER (portGSelect); + + if (((portGData & modelOutPin) == 0) && + ((portGDir & modelOutPin) == modelOutPin) && + ((portGSelect & modelOutPin) == modelOutPin)) + { + EmDevice device = gSession->GetDevice (); + result |= (~device.HardwareID ()) & modelInPins; // <chg 24-Apr-2000 BP> expects inverse output + } + else + { + // The pin for detecting "in cradle" is hwrVisorPrismPortEDock2Off. It should be low + // if in the serial cradle. If it is high, we assume USB. + // -- Bob Petersen + + result &= ~hwrVisorPrismPortEDock2Off; + } + } + else if (port == 'G') + { + // Make sure that hwrVisorPrismPortGPowerFailIrqOff is set. If it's clear, + // the battery code will make the device go to sleep immediately. + + result |= hwrVisorPrismPortGPowerFailIrqOff; + } + + else if (port == 'J') + { + // Make sure this bit is set, which means the EEPROM has finished being read. + // Otherwise we will loop indefinitely as the OS polls this port. + + result |= hwrVisorPrismPortJEepromDo; + } + + return result; +} + + +// --------------------------------------------------------------------------- +// ¥ EmRegsVZVisorPrism::GetPortInternalValue +// +// Returns the "dedicated" pin value of the given port. +// --------------------------------------------------------------------------- + +uint8 EmRegsVZVisorPrism::GetPortInternalValue (int port) +{ + uint8 result = EmRegsVZ::GetPortInternalValue (port); + + if (port == 'D') + { + // Always set the high bit, indicating that there's no memory module + // installed. From Bob Petersen at Handspring: + // + // This is a probe into the module memory, to check for a replacement ROM on a + // card that is plugged in. The card is mapped to 0x20000000 and the card's + // ROM is at 0x28000000. If it finds the card header (FEEDBEEF) and the card + // is plugged in that has a non-zero reset vector, the chip selects are changed + // so B0 addresses 10c00000, and then we jump to the reset vector and boot off + // the card. + // + // This part of the boot code should only be called if it is detected that a + // card is currently plugged in (bit 7 of port D) and we aren't currently + // booting from the card. + + result |= hwrVisorPrismPortDCardInstIrqOff; + + // Ensure that bit hwrVisorPrismPortDDock1IrqOff is set. If it's clear, HotSync + // will sync via the modem instead of the serial port. + + result |= hwrVisorPrismPortDDock1IrqOff; + } + else if (port == 'G') + { + // Make sure that hwrVisorPrismPortGPowerFailIrqOff is set. If it's clear, + // the battery code will make the device go to sleep immediately. + + result |= hwrVisorPrismPortGPowerFailIrqOff; + } + + return result; +} + + +// --------------------------------------------------------------------------- +// ¥ EmRegsVZVisorPrism::GetKeyInfo +// --------------------------------------------------------------------------- + +void EmRegsVZVisorPrism::GetKeyInfo (int* numRows, int* numCols, + uint16* keyMap, Bool* rows) +{ + *numRows = kNumButtonRows; + *numCols = kNumButtonCols; + + memcpy (keyMap, kButtonMap, sizeof (kButtonMap)); + + // Determine what row is being asked for. + + UInt8 portKDirVZ = READ_REGISTER (portKDir); + UInt8 portKDataVZ = READ_REGISTER (portKData); + + UInt8 portGDir = READ_REGISTER (portGDir); + UInt8 portGData = READ_REGISTER (portGData); + + rows[0] = (portGDir & hwrVisorPrismPortGKbdRow0) != 0 && (portGData & hwrVisorPrismPortGKbdRow0) == 0; + rows[1] = (portGDir & hwrVisorPrismPortGKbdRow1) != 0 && (portGData & hwrVisorPrismPortGKbdRow1) == 0; + rows[2] = (portKDirVZ & hwrVisorPrismPortKKbdRow2) != 0 && (portKDataVZ & hwrVisorPrismPortKKbdRow2) == 0; +} + |