diff options
Diffstat (limited to 'SrcShared/Hardware/EmUARTDragonball.h')
| -rw-r--r-- | SrcShared/Hardware/EmUARTDragonball.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/SrcShared/Hardware/EmUARTDragonball.h b/SrcShared/Hardware/EmUARTDragonball.h new file mode 100644 index 0000000..8c777be --- /dev/null +++ b/SrcShared/Hardware/EmUARTDragonball.h @@ -0,0 +1,149 @@ +/* -*- mode: C++; tab-width: 4 -*- */ +/* ===================================================================== *\ + Copyright (c) 1998-2001 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. +\* ===================================================================== */ + +#ifndef EmUARTDragonball_h +#define EmUARTDragonball_h + +#include "EmThreadSafeQueue.h" // EmByteQueue + +class EmTransport; +class SessionFile; + + +class EmUARTDragonball +{ + public: + enum UART_Type + { + kUART_Dragonball, + kUART_DragonballEZ, + kUART_DragonballVZ, + kUART_DragonballSZ + }; + + struct State + { + State (UART_Type type) { UART_TYPE = type; } + + UART_Type UART_TYPE; + + // + = Supported + // = Unsupported + // -> = Input value + // <- = Output value + + // UART control register bits + // These are all values the user sets; we just look at them. + + /* + -> */ unsigned int UART_ENABLE:1; + /* + -> */ unsigned int RX_ENABLE:1; + /* + -> */ unsigned int TX_ENABLE:1; + /* -> */ unsigned int RX_CLK_CONT:1; + /* + -> */ unsigned int PARITY_EN:1; + /* + -> */ unsigned int ODD_EVEN:1; + /* + -> */ unsigned int STOP_BITS:1; + /* + -> */ unsigned int CHAR8_7:1; + /* -> */ unsigned int GPIO_DELTA_ENABLE:1; // 68328 only + /* -> */ unsigned int OLD_ENABLE:1; // 68EZ328 only + /* -> */ unsigned int CTS_DELTA_ENABLE:1; + /* + -> */ unsigned int RX_FULL_ENABLE:1; + /* + -> */ unsigned int RX_HALF_ENABLE:1; + /* + -> */ unsigned int RX_RDY_ENABLE:1; + /* + -> */ unsigned int TX_EMPTY_ENABLE:1; + /* + -> */ unsigned int TX_HALF_ENABLE:1; + /* + -> */ unsigned int TX_AVAIL_ENABLE:1; + + // Baud control register bits + // These are all values the user sets; we just look at them. + + /* -> */ unsigned int GPIO_DELTA:1; // 68328 only + /* -> */ unsigned int GPIO:1; // 68328 only + /* -> */ unsigned int GPIO_DIR:1; // 68328 only + /* -> */ unsigned int GPIO_SRC:1; // 68328 only + /* -> */ unsigned int UCLK_DIR:1; // 68EZ328 only + /* -> */ unsigned int BAUD_SRC:1; + /* + -> */ unsigned int DIVIDE; + /* + -> */ unsigned int PRESCALER; + + // Receive register bits + // These are all input bits; we set them, not the user. + + /* + <- */ unsigned int RX_FIFO_FULL:1; + /* + <- */ unsigned int RX_FIFO_HALF:1; + /* + <- */ unsigned int DATA_READY:1; + /* <- */ unsigned int OLD_DATA:1; // 68EZ328 only + /* <- */ unsigned int OVRUN:1; + /* <- */ unsigned int FRAME_ERROR:1; + /* <- */ unsigned int BREAK:1; + /* <- */ unsigned int PARITY_ERROR:1; + /* + <- */ unsigned int RX_DATA; + + // Transmitter register bits + // The user sets TX_DATA, IGNORE_CTS, and SEND_BREAK. + // We set the rest. + + /* + <- */ unsigned int TX_FIFO_EMPTY:1; + /* + <- */ unsigned int TX_FIFO_HALF:1; + /* + <- */ unsigned int TX_AVAIL:1; + /* -> */ unsigned int SEND_BREAK:1; + /* + -> */ unsigned int IGNORE_CTS:1; + /* + <- */ unsigned int BUSY:1; // 68EZ328 only + /* + <- */ unsigned int CTS_STATUS:1; + /* <- */ unsigned int CTS_DELTA:1; + /* + -> */ unsigned int TX_DATA; + + // Misc register bits + // These are all values the user sets; we just look at them. + + /* -> */ unsigned int BAUD_TEST:1; // 68EZ328 only + /* -> */ unsigned int CLK_SRC:1; + /* -> */ unsigned int FORCE_PERR:1; + /* + -> */ unsigned int LOOP:1; + /* -> */ unsigned int BAUD_RESET:1; // 68EZ328 only + /* -> */ unsigned int IR_TEST:1; // 68EZ328 only + /* + -> */ unsigned int RTS_CONT:1; + /* + -> */ unsigned int RTS:1; + /* + -> */ unsigned int IRDA_ENABLE:1; + /* -> */ unsigned int IRDA_LOOP:1; + /* -> */ unsigned int RX_POL:1; // 68EZ328 only + /* -> */ unsigned int TX_POL:1; // 68EZ328 only + + // Level Marker Interrupt + + /* + -> */ unsigned int TXFIFO_LEVEL_MARKER:4; // 68SZ328 only + /* + -> */ unsigned int RXFIFO_LEVEL_MARKER:4; // 68SZ328 only + }; + + EmUARTDragonball (UART_Type, int uartNum); + ~EmUARTDragonball (void); + + void StateChanged (State&, Bool sendRxData); + void UpdateState (State&, Bool refreshRxData); + + void TransmitTxFIFO (EmTransport*); + void ReceiveRxFIFO (EmTransport*); + + EmTransport* GetTransport (void); + + private: + int PrvFIFOSize (Bool forRX); + int PrvLevelMarker (Bool forRX); + + private: + int fUARTNum; + State fState; + EmByteQueue fRxFIFO; + EmByteQueue fTxFIFO; +}; + +#endif /* EmUARTDragonball_h */ |