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SSC work:
. SSC: For TCP mode, support DSR, DCD & CTS status bits (#308). . SSC: Now DTR must also be set to enable interrupts (in addition to the respective Tx/Rx interrupt bit). . SSC: When reading the Status register, throttle calls to GetCommModemStatus() to a maximum of once every 8ms.
This commit is contained in:
tomcw
parent
1ed484eb01
commit
4ab5aa1e7c
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@ -9,6 +9,13 @@ https://github.com/AppleWin/AppleWin/issues/new
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Tom Charlesworth
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1.27.3.0 - 14 Apr 2018
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----------------------
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. [Bug #308] SSC: For TCP mode, support DSR, DCD & CTS status bits.
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. SSC: Now DTR must also be set to enable interrupts (in addition to the respective Tx/Rx interrupt bit).
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. SSC: When reading the Status register, throttle calls to GetCommModemStatus() to a maximum of once every 8ms.
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1.27.2.0 - 12 Apr 2018
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----------------------
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. [Change #522] SSC: Support ACIA's TX Empty interrupt for both COM and TCP modes.
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@ -252,8 +252,8 @@ DISK_ICON ICON "DISK.ICO"
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//
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VS_VERSION_INFO VERSIONINFO
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FILEVERSION 1,27,2,0
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PRODUCTVERSION 1,27,2,0
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FILEVERSION 1,27,3,0
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PRODUCTVERSION 1,27,3,0
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FILEFLAGSMASK 0x3fL
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#ifdef _DEBUG
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FILEFLAGS 0x1L
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@ -271,12 +271,12 @@ BEGIN
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VALUE "Comments", "https://github.com/AppleWin"
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VALUE "CompanyName", "AppleWin"
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VALUE "FileDescription", "Apple //e Emulator for Windows"
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VALUE "FileVersion", "1, 27, 2, 0"
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VALUE "FileVersion", "1, 27, 3, 0"
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VALUE "InternalName", "APPLEWIN"
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VALUE "LegalCopyright", " 1994-2018 Michael O'Brien, Oliver Schmidt, Tom Charlesworth, Michael Pohoreski, Nick Westgate, Linards Ticmanis"
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VALUE "OriginalFilename", "APPLEWIN.EXE"
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VALUE "ProductName", "Apple //e Emulator"
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VALUE "ProductVersion", "1, 27, 2, 0"
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VALUE "ProductVersion", "1, 27, 3, 0"
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END
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END
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BLOCK "VarFileInfo"
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@ -439,7 +439,7 @@ BYTE __stdcall CSuperSerialCard::SSC_IOWrite(WORD PC, WORD uAddr, BYTE bWrite, B
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//===========================================================================
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// 6551 ACIA Command Register ($C08A+s0)
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// . EG. 0x09 = "no parity, enable IRQ" - b7:5(No parity), b4 (No echo), b3:1(Enable TX,RX IRQs), b0(DTR: Enable Rx/Tx) [Ref.2]
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// . EG. 0x09 = "no parity, enable IRQ" [Ref.2] - b7:5(No parity), b4 (No echo), b3:1(Enable TX,RX IRQs), b0(DTR: Enable receiver and all interrupts)
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enum { CMD_PARITY_MASK = 3<<6,
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CMD_PARITY_ODD = 0<<6, // Odd parity
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CMD_PARITY_EVEN = 1<<6, // Even parity
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@ -453,7 +453,7 @@ enum { CMD_PARITY_MASK = 3<<6,
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CMD_TX_IRQ_DIS_RTS_LOW = 2<<2,
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CMD_TX_IRQ_DIS_RTS_LOW_BRK = 3<<2, // Transmit BRK
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CMD_RX_IRQ_DIS = 1<<1, // 1=IRQ interrupt disabled
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CMD_DTR = 1<<0, // Data Terminal Ready: 1=Enable Rx/Tx (!DTR low)
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CMD_DTR = 1<<0, // Data Terminal Ready: Enable(1) or disable(0) receiver and all interrupts (!DTR low)
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};
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BYTE __stdcall CSuperSerialCard::CommProgramReset(WORD, WORD, BYTE, BYTE, ULONG)
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@ -513,7 +513,7 @@ void CSuperSerialCard::UpdateCommandReg(BYTE command)
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break;
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}
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if (m_DIPSWCurrent.bInterrupts)
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if (m_DIPSWCurrent.bInterrupts && m_uCommandByte & CMD_DTR)
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{
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m_bTxIrqEnabled = (m_uCommandByte & CMD_TX_MASK) == CMD_TX_IRQ_ENA_RTS_LOW;
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m_bRxIrqEnabled = (m_uCommandByte & CMD_RX_IRQ_DIS) == 0;
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@ -630,6 +630,12 @@ BYTE __stdcall CSuperSerialCard::CommReceive(WORD, WORD, BYTE, BYTE, ULONG)
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if (!m_qTcpSerialBuffer.empty())
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{
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// NB. See CommTcpSerialReceive() above, for a note explaining why there's no need for a critical section here
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// If receiver is disabled then transmitting device should not send data
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// . For COM serial connection this is handled by DTR/DTS flow-control (which enables the receiver)
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if ((m_uCommandByte & CMD_DTR) == 0) // Receiver disable, so prevent receiving data
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return 0;
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result = m_qTcpSerialBuffer.front();
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m_qTcpSerialBuffer.pop_front();
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@ -639,7 +645,7 @@ BYTE __stdcall CSuperSerialCard::CommReceive(WORD, WORD, BYTE, BYTE, ULONG)
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m_vbRxIrqPending = true;
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}
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}
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else if (m_hCommHandle != INVALID_HANDLE_VALUE) // COM
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else if (m_hCommHandle != INVALID_HANDLE_VALUE)
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{
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EnterCriticalSection(&m_CriticalSection);
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{
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@ -689,6 +695,10 @@ BYTE __stdcall CSuperSerialCard::CommTransmit(WORD, WORD, BYTE, BYTE value, ULON
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if (!CheckComm())
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return 0;
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// If transmitter is disabled then: Is data just discarded or does it get transmitted if transmitter is later enabled?
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if ((m_uCommandByte & CMD_TX_MASK) == CMD_TX_IRQ_DIS_RTS_HIGH) // Transmitter disable, so just discard for now
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return 0;
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if (m_hCommAcceptSocket != INVALID_SOCKET)
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{
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BYTE data = value;
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@ -744,11 +754,28 @@ BYTE __stdcall CSuperSerialCard::CommStatus(WORD, WORD, BYTE, BYTE, ULONG)
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if (!CheckComm())
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return ST_DSR | ST_DCD | ST_TX_EMPTY;
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DWORD modemStatus = 0;
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if ((m_hCommHandle != INVALID_HANDLE_VALUE) && (m_bCfgSupportDCD || m_bCfgSupportDSR))
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static DWORD modemStatus = 0;
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if (m_bCfgSupportDCD || m_bCfgSupportDSR)
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{
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// Do this outside of the critical section (don't know how long it takes)
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GetCommModemStatus(m_hCommHandle, &modemStatus); // Returns 0x30 = MS_DSR_ON|MS_CTS_ON
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if (m_hCommHandle != INVALID_HANDLE_VALUE)
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{
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// Call GetCommModemStatus() outside of the critical section. For Win7-64: takes 1-2msecs!
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static DWORD dwLastTimeGettingModemStatus = 0;
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DWORD dwCurrTime = GetTickCount();
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if (dwCurrTime - dwLastTimeGettingModemStatus > 8) // Limit reading status to twice a 16.6ms video frame (arbitrary throttle limit)
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{
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// Only permit periodic reading, otherwise a tight 6502 polling loop can kill emulator performance!
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GetCommModemStatus(m_hCommHandle, &modemStatus); // Returns 0x30 = MS_DSR_ON|MS_CTS_ON
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dwLastTimeGettingModemStatus = dwCurrTime;
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}
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}
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else if (m_hCommListenSocket != INVALID_SOCKET)
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{
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if (m_hCommAcceptSocket != INVALID_SOCKET)
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modemStatus = MS_RLSD_ON | MS_DSR_ON | MS_CTS_ON;
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else
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modemStatus = 0;
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}
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}
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//
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@ -798,7 +825,7 @@ BYTE __stdcall CSuperSerialCard::CommStatus(WORD, WORD, BYTE, BYTE, ULONG)
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BYTE uStatus =
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IRQ
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| DSR
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| DCD // Need 0x00 to allow ZLink to start up
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| DCD // Need 0x00 (ie. DCD is active) to allow ZLink to start up
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| TX_EMPTY
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| RX_FULL;
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@ -862,6 +889,10 @@ BYTE __stdcall CSuperSerialCard::CommDipSw(WORD, WORD addr, BYTE, BYTE, ULONG)
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if (GetCommModemStatus(m_hCommHandle, &modemStatus))
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CTS = (modemStatus & MS_CTS_ON) ? 0 : 1; // CTS is true when 0
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}
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else if (m_hCommListenSocket != INVALID_SOCKET)
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{
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CTS = (m_hCommAcceptSocket != INVALID_SOCKET) ? 0 : 1;
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}
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// SSC-54:
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sw = SW2_1<<7 | // b7 : SW2-1
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