AppleWin/source/SerialComms.h

138 lines
3.6 KiB
C++

#pragma once
extern class CSuperSerialCard sg_SSC;
enum {COMMEVT_WAIT=0, COMMEVT_ACK, COMMEVT_TERM, COMMEVT_MAX};
enum eFWMODE {FWMODE_CIC=0, FWMODE_SIC_P8, FWMODE_PPC, FWMODE_SIC_P8A}; // NB. CIC = SSC
typedef struct
{
//DIPSW1
UINT uBaudRate;
eFWMODE eFirmwareMode;
//DIPSW2
UINT uStopBits;
UINT uByteSize;
UINT uParity;
bool bLinefeed;
bool bInterrupts;
} SSC_DIPSW;
#define TEXT_SERIAL_COM TEXT("COM")
#define TEXT_SERIAL_TCP TEXT("TCP")
class CSuperSerialCard
{
public:
CSuperSerialCard();
virtual ~CSuperSerialCard();
void CommInitialize(LPBYTE pCxRomPeripheral, UINT uSlot);
void CommReset();
void CommDestroy();
void CommSetSerialPort(HWND hWindow, DWORD dwNewSerialPortItem);
void CommUpdate(DWORD);
DWORD CommGetSnapshot(SS_IO_Comms* pSS);
DWORD CommSetSnapshot(SS_IO_Comms* pSS);
char* GetSerialPortChoices();
DWORD GetSerialPort() { return m_dwSerialPortItem; } // Drop-down list item
char* GetSerialPortName() { return m_ayCurrentSerialPortName; }
void SetSerialPortName(const char* pSerialPortName);
bool IsActive() { return (m_hCommHandle != INVALID_HANDLE_VALUE) || (m_hCommListenSocket != INVALID_SOCKET); }
void CommTcpSerialAccept();
void CommTcpSerialReceive();
void CommTcpSerialClose();
void CommTcpSerialCleanup();
static BYTE __stdcall SSC_IORead(WORD PC, WORD uAddr, BYTE bWrite, BYTE uValue, ULONG nCyclesLeft);
static BYTE __stdcall SSC_IOWrite(WORD PC, WORD uAddr, BYTE bWrite, BYTE uValue, ULONG nCyclesLeft);
private:
BYTE __stdcall CommCommand(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG nCyclesLeft);
BYTE __stdcall CommControl(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG nCyclesLeft);
BYTE __stdcall CommDipSw(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG nCyclesLeft);
BYTE __stdcall CommReceive(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG nCyclesLeft);
BYTE __stdcall CommStatus(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG nCyclesLeft);
BYTE __stdcall CommTransmit(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG nCyclesLeft);
void InternalReset();
void GetDIPSW();
void SetDIPSWDefaults();
BYTE GenerateControl();
UINT BaudRateToIndex(UINT uBaudRate);
void UpdateCommState();
BOOL CheckComm();
void CloseComm();
void CheckCommEvent(DWORD dwEvtMask);
static DWORD WINAPI CommThread(LPVOID lpParameter);
bool CommThInit();
void CommThUninit();
UINT GetNumSerialPortChoices() { return m_vecSerialPortsItems.size(); }
void ScanCOMPorts();
//
public:
static const UINT SIZEOF_SERIALCHOICE_ITEM = 8*sizeof(char);
private:
char m_ayCurrentSerialPortName[SIZEOF_SERIALCHOICE_ITEM];
DWORD m_dwSerialPortItem;
static const UINT SERIALPORTITEM_INVALID_COM_PORT = 0;
std::vector<UINT> m_vecSerialPortsItems; // Includes "None" & "TCP" items
char* m_aySerialPortChoices;
UINT m_uTCPChoiceItemIdx;
static SSC_DIPSW m_DIPSWDefault;
SSC_DIPSW m_DIPSWCurrent;
// Derived from DIPSW1
UINT m_uBaudRate;
// Derived from DIPSW2
UINT m_uStopBits;
UINT m_uByteSize;
UINT m_uParity;
// SSC Registers
BYTE m_uControlByte;
BYTE m_uCommandByte;
//
HANDLE m_hCommHandle;
SOCKET m_hCommListenSocket;
SOCKET m_hCommAcceptSocket;
DWORD m_dwCommInactivity;
//
CRITICAL_SECTION m_CriticalSection; // To guard /g_vRecvBytes/
std::deque<BYTE> m_qComSerialBuffer[2];
volatile UINT m_vuRxCurrBuffer; // Written to on COM recv. SSC reads from other one
std::deque<BYTE> m_qTcpSerialBuffer;
//
bool m_bTxIrqEnabled;
bool m_bRxIrqEnabled;
volatile bool m_vbTxIrqPending;
volatile bool m_vbRxIrqPending;
bool m_bWrittenTx;
//
HANDLE m_hCommThread;
HANDLE m_hCommEvent[COMMEVT_MAX];
OVERLAPPED m_o;
BYTE* m_pExpansionRom;
};