omap3530/omap3530_drivers/euart/euart.cpp
author george.norton
Thu, 01 Jul 2010 17:46:13 +0100
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child 108 181b2f6a9979
permissions -rw-r--r--
Initial contribution of the euart driver by Accenture. Known issues ============ When the FIFO is enabled we seem to get some dropped characters, as a temporary workaround a polling mode is enabled.
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// This component and the accompanying materials are made available
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// under the terms of the License "Symbian Foundation License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.symbianfoundation.org/legal/sfl-v10.html".
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//
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// Initial Contributors:
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// Accenture
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//
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// Contributors:
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//
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// Description:
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// \sf\adaptation\beagleboard\omap3530\omap3530_drivers\euart\euart.cpp
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// pdd for serial ports
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// assume Modem Control Signals change cause an interrupt
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// 
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//
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#include <d32comm.h>
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#include <beagle\variant.h>
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#include "euart.h"
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#define TX_POLLING_HACK
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_LIT(KPddName,"Comm.Beagle");
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using namespace Omap3530Uart;
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DDriverComm::DDriverComm()
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//
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// Constructor
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//
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	{
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	iUnitsMask=0x7;
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	iVersion=TVersion(KCommsMajorVersionNumber,KCommsMinorVersionNumber,KCommsBuildVersionNumber);
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	}
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TInt DDriverComm::Install()
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//
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// Install the driver
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//
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	{
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	return SetName(&KPddName);
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	}
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void GetTemplateCommsCaps(TDes8 &aCaps, TInt aUnit)
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	{
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	TCommCaps2 capsBuf;
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	// Fill in the Caps structure with the relevant information for this Unit, e.g
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	TCommCapsV02 &c=capsBuf();
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	c.iRate=KCapsBps1200|KCapsBps2400|KCapsBps4800|KCapsBps9600|KCapsBps19200|KCapsBps38400|
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			KCapsBps57600|KCapsBps115200|KCapsBps230400|KCapsBps460800|KCapsBps4000000;
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	c.iDataBits=KCapsData5|KCapsData6|KCapsData7|KCapsData8;
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	c.iStopBits=KCapsStop1|KCapsStop2;
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	c.iParity=KCapsParityNone|KCapsParityEven|KCapsParityOdd|KCapsParityMark|KCapsParitySpace;
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	c.iHandshake=0; //(OR in all KCapsObeyXXXSupported, KCapsSendXXXSupported, KCapsFailXXXSupported, KCapsFreeXXXSupported
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				    // as required for this Unit's configuration);.
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	c.iSignals=0;   //(OR in as many KCapsSignalXXXSupported as Modem control signals controllable by this Unit);
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	c.iSIR=0; 		//(0 or OR in as many KCapsSIRXXX as IR bit rates supported);
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	c.iNotificationCaps=0; //(OR in as many KNotifyXXXSupported as notifications supported by this Unit);
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	c.iFifo=0;				//(0 or KCapsHasFifo);
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	c.iRoleCaps=0;			//(0 or KCapsRoleSwitchSupported);
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	c.iFlowControlCaps=0;	//(0 or KCapsFlowControlStatusSupported);
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	/** @see TCommCapsV02 */
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	aCaps=capsBuf.Left(Min(capsBuf.Length(),aCaps.MaxLength()));
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	}
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void DDriverComm::GetCaps(TDes8 &aDes) const
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//
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// Return the drivers capabilities
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//
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	{
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	GetTemplateCommsCaps(aDes, 0);
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	}
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TInt DDriverComm::Create(DBase*& aChannel, TInt aUnit, const TDesC8* anInfo, const TVersion& aVer)
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//
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// Create a driver
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//
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	{
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	DCommBeagle* pD=new DCommBeagle;
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	aChannel=pD;
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	TInt r=KErrNoMemory;
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	if (pD)
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		r=pD->DoCreate(aUnit,anInfo);
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	return r;
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	}
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TInt DDriverComm::Validate(TInt aUnit, const TDesC8* /*anInfo*/, const TVersion& aVer)
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//
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//	Validate the requested configuration (Version and Unit)
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//
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	{
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	if ((!Kern::QueryVersionSupported(iVersion,aVer)) || (!Kern::QueryVersionSupported(aVer,TVersion(KMinimumLddMajorVersion,KMinimumLddMinorVersion,KMinimumLddBuild))))
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		return KErrNotSupported;
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	if(aUnit<0 || aUnit >2)
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		return KErrNotSupported;
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	return KErrNone;
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	}
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DCommBeagle::DCommBeagle()
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//
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// Constructor
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//
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	{
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	gData=0;
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	iInterruptId=-1;		// -1 means not bound
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	}
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DCommBeagle::~DCommBeagle()
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//
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// Destructor
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//
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	{
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	if (iInterruptId>=0)
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		Interrupt::Unbind(iInterruptId);
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	if (iDfcQ)
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		{
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		iDfcQ->Destroy();
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		}
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	}
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const TInt KDCommBeagleDfcThreadPriority = 24;
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_LIT(KDCommBeagleDfcThread,"DCommBeagleDfcThread");
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TInt DCommBeagle::DoCreate(TInt aUnit, const TDesC8* /*anInfo*/)
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//
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// Sets up the PDD
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//
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	{
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	iUnit=aUnit;
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	//  Create own DFC queue
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	TInt r = Kern::DynamicDfcQCreate(iDfcQ, KDCommBeagleDfcThreadPriority, KDCommBeagleDfcThread);
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	if (r != KErrNone)
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		return r; 	
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	// Set iPortAddr and irq with the Linear Base address of the UART and the Interrupt ID coresponding to aUnit
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	iUart = new TUart((TUartNumber)aUnit);
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	Prcm::SetClockState(iUart->PrcmInterfaceClk(), Prcm::EClkOn);
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	Prcm::SetClockState(iUart->PrcmFunctionClk(), Prcm::EClkOn);
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	// bind to UART interrupt
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	r=Interrupt::Bind(iUart->InterruptId(),Isr,this);
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	if (r==KErrNone)
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		iInterruptId=iUart->InterruptId();
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	return r;
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	}
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TDfcQue* DCommBeagle::DfcQ(TInt aUnit)
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//
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// Return the DFC queue to be used for this device
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// For UARTs just use the standard low priority DFC queue
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// For Serial PC cards, use the PC card controller thread for the socket in question.
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//
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	{
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	return aUnit==iUnit ? iDfcQ : NULL;
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	}
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TInt DCommBeagle::Start()
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//
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// Start receiving characters
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//
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	{
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	if(iUnit == Kern::SuperPage().iDebugPort)
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		Variant::MarkDebugPortOff();
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	iTransmitting=EFalse;			// if EnableTransmit() called before Start()
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	if(iUart==NULL)
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		{
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		return KErrNotReady;
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		}
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	iSignals=Signals();
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	iLdd->UpdateSignals(iSignals);
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	Interrupt::Enable(iInterruptId);
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	iUart->EnableInterrupt(TUart::EIntRhr);
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	return KErrNone;
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	}
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TBool FinishedTransmitting(TAny* aPtr)
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	{
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	DCommBeagle* self = (DCommBeagle*)aPtr;
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	if(self->iUart==NULL)
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		{
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		return ETrue;
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		}
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	if(!self->iUart->TxFifoEmpty())
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		{
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		return EFalse;
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		}
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	return ETrue;
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	}
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void DCommBeagle::Stop(TStopMode aMode)
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//
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// Stop receiving characters
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//
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	{
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	switch (aMode)
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		{
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		case EStopNormal:
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		case EStopPwrDown:
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			iUart->DisableInterrupt(TUart::EIntRhr);
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			iUart->DisableInterrupt(TUart::EIntThr);
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			Interrupt::Disable(iInterruptId);
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			// wait for uart to stop tranmitting
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			Kern::PollingWait(FinishedTransmitting,this,3,100);
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			iTransmitting=EFalse;
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			iUart->Disable();			
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			Prcm::SetClockState(iUart->PrcmFunctionClk(), Prcm::EClkOff);
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			break;
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		case  EStopEmergency:
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			iUart->DisableInterrupt(TUart::EIntRhr);			
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			iUart->DisableInterrupt(TUart::EIntThr);
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			Interrupt::Disable(iInterruptId);
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			iTransmitting=EFalse;
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			break;
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		}
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	}
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void DCommBeagle::Break(TBool aState)
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//
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// Start or stop the uart breaking
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//
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	{
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	if (aState)
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		{
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		//
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		// TO DO: (mandatory)
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		//
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		// Enable sending a Break (space) condition
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		//
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		}
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	else
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		{
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		//
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		// TO DO: (mandatory)
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		//
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		// Stop sending a Break (space) condition
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		//
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   252
		}
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   253
	}
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   254
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void DCommBeagle::EnableTransmit()
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   256
//
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// Start sending characters.
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   258
//
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   259
	{
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	TBool tx=(TBool)NKern::SafeSwap((TAny*)ETrue,(TAny*&)iTransmitting);
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   261
	if (tx)
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   262
		{
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   263
		return;
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   264
		}
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	TInt r = 0;
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	#ifdef TX_POLLING_HACK
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	while (Kern::PowerGood())
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   268
	#else
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   269
	while (Kern::PowerGood() && !iUart->TxFifoFull())
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	#endif
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		{	
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   272
		r=TransmitIsr();
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   273
		if(r<0)
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   274
			{
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   275
			//no more to send
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   276
			iTransmitting=EFalse;
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   277
			break;
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diff changeset
   278
			}
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   279
		#ifdef TX_POLLING_HACK
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		while(iUart->TxFifoFull());
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   281
		#endif
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		iUart->Write(r);
cdb163c0843f Initial contribution of the euart driver by Accenture.
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diff changeset
   283
		}
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   284
	TInt irq=0;
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   285
	if (!iInInterrupt)					// CheckTxBuffer adds a Dfc: can only run from ISR or with NKernel locked
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diff changeset
   286
		{
cdb163c0843f Initial contribution of the euart driver by Accenture.
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   287
		NKern::Lock();
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   288
		irq=NKern::DisableAllInterrupts();
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diff changeset
   289
		}
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   290
	CheckTxBuffer();
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   291
	if (!iInInterrupt)
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diff changeset
   292
		{
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   293
		NKern::RestoreInterrupts(irq);
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   294
		NKern::Unlock();
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diff changeset
   295
		}
cdb163c0843f Initial contribution of the euart driver by Accenture.
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   296
	if (r>=0)											// only enable interrupt if there's more data to send
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diff changeset
   297
		{
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   298
		iUart->EnableInterrupt(TUart::EIntThr);
cdb163c0843f Initial contribution of the euart driver by Accenture.
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diff changeset
   299
		}
cdb163c0843f Initial contribution of the euart driver by Accenture.
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diff changeset
   300
	}
cdb163c0843f Initial contribution of the euart driver by Accenture.
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   301
cdb163c0843f Initial contribution of the euart driver by Accenture.
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TUint DCommBeagle::Signals() const
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   303
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
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   304
// Read and translate the modem lines
cdb163c0843f Initial contribution of the euart driver by Accenture.
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   305
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
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   306
	{
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   307
	TUint signals=0;
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   308
	//
cdb163c0843f Initial contribution of the euart driver by Accenture.
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   309
	// TO DO: (mandatory)
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   310
	//
cdb163c0843f Initial contribution of the euart driver by Accenture.
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   311
	// If the UART corresponding to iUnit supports Modem Control Signals, read them and return a bitmask with one or 
cdb163c0843f Initial contribution of the euart driver by Accenture.
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   312
	// more of the following OR-ed in:
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   313
	// - KSignalDTR,
cdb163c0843f Initial contribution of the euart driver by Accenture.
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   314
	// - KSignalRTS,
cdb163c0843f Initial contribution of the euart driver by Accenture.
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diff changeset
   315
	// - KSignalDSR,
cdb163c0843f Initial contribution of the euart driver by Accenture.
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diff changeset
   316
	// - KSignalCTS,
cdb163c0843f Initial contribution of the euart driver by Accenture.
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   317
	// - KSignalDCD.
cdb163c0843f Initial contribution of the euart driver by Accenture.
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   318
	// 
cdb163c0843f Initial contribution of the euart driver by Accenture.
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parents:
diff changeset
   319
	return signals;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   320
	}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   321
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   322
void DCommBeagle::SetSignals(TUint aSetMask, TUint aClearMask)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   323
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   324
// Set signals.
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   325
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   326
	{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   327
	//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   328
	// TO DO: (mandatory)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   329
	//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   330
	// If the UART corresponding to iUnit supports Modem Control Signals, converts the flags in aSetMask and aClearMask 
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   331
	// into hardware-specific bitmasks to write to the UART modem/handshake output register(s). 
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   332
	// aSetMask, aClearMask will have one or more of the following OR-ed in:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   333
	// - KSignalDTR,
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   334
	// - KSignalRTS,
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   335
	//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   336
	}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   337
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   338
TInt DCommBeagle::ValidateConfig(const TCommConfigV01 &aConfig) const
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   339
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   340
// Check a config structure.
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   341
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   342
	{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   343
	//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   344
	// TO DO: (mandatory)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   345
	//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   346
	// Checks the the options in aConfig are supported by the UART corresponding to iUnit
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   347
	// May need to check:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   348
	//  - aConfig.iParity (contains one of EParityXXX)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   349
	/** @see TParity */
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   350
	//  - aConfig.iRate (contains one of EBpsXXX)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   351
	/** @see TBps */
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   352
	//  - aConfig.iDataBits (contains one of EDataXXX)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   353
	/** @see TDataBits */
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   354
	//  - aConfig.iStopBits (contains one of EStopXXX)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   355
	/** @see TDataBits */
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   356
	//  - aConfig.iHandshake (contains one of KConfigObeyXXX or KConfigSendXXX or KConfigFailXXX or KConfigFreeXXX)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   357
	//  - aConfig.iParityError (contains KConfigParityErrorFail or KConfigParityErrorIgnore or KConfigParityErrorReplaceChar)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   358
	//  - aConfig.iFifo (contains ether EFifoEnable or EFifoDisable)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   359
	/** @see TFifo */
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   360
	//  - aConfig.iSpecialRate (may contain a rate not listed under TBps)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   361
	//  - aConfig.iTerminatorCount (conatains number of special characters used as terminators)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   362
	//  - aConfig.iTerminator[] (contains a list of special characters which can be used as terminators)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   363
	//  - aConfig.iXonChar (contains the character used as XON - software flow control)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   364
	//  - aConfig.iXoffChar (contains the character used as XOFF - software flow control)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   365
	//  - aConfig.iParityErrorChar (contains the character used to replace bytes received with a parity error)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   366
	//  - aConfig.iSIREnable (contains either ESIREnable or ESIRDisable)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   367
	/** @see TSir */
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   368
	//  - aConfig.iSIRSettings (contains one of KConfigSIRXXX)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   369
	// and returns KErrNotSupported if the UART corresponding to iUnit does not support this configuration
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   370
	//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   371
	return KErrNone;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   372
	}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   373
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   374
void DCommBeagle::CheckConfig(TCommConfigV01& aConfig)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   375
	{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   376
	//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   377
	// TO DO: (optional)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   378
	//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   379
	// Validates the default configuration that is defined when a channel is first opened
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   380
	//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   381
	}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   382
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   383
TInt DCommBeagle::DisableIrqs()
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   384
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   385
// Disable normal interrupts
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   386
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   387
	{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   388
	
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   389
	return NKern::DisableInterrupts(1);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   390
	}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   391
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   392
void DCommBeagle::RestoreIrqs(TInt aLevel)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   393
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   394
// Restore normal interrupts
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   395
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   396
	{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   397
	
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   398
	NKern::RestoreInterrupts(aLevel);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   399
	}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   400
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   401
void DCommBeagle::Configure(TCommConfigV01 &aConfig)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   402
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   403
// Configure the UART from aConfig
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   404
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   405
	{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   406
	Kern::PollingWait(FinishedTransmitting,this,3,100);	// wait for uart to stop tranmitting
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   407
	iUart->Disable();
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   408
	
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   409
	iUart->Init();
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   410
	iUart->DefineMode(TUart::EUart);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   411
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   412
	switch(aConfig.iRate)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   413
		{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   414
		case EBps1200:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   415
			iUart->SetBaud(TUart::E1200);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   416
			break;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   417
		case EBps2400:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   418
			iUart->SetBaud(TUart::E2400);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   419
			break;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   420
		case EBps4800:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   421
			iUart->SetBaud(TUart::E4800);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   422
			break;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   423
		case EBps9600:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   424
			iUart->SetBaud(TUart::E9600);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   425
			break;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   426
		case EBps19200:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   427
			iUart->SetBaud(TUart::E19200);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   428
			break;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   429
		case EBps38400:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   430
			iUart->SetBaud(TUart::E38400);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   431
			break;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   432
		case EBps57600:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   433
			iUart->SetBaud(TUart::E57600);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   434
			break;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   435
		case EBps460800:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   436
			iUart->SetBaud(TUart::E460800);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   437
			break;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   438
		case EBps115200:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   439
		default:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   440
			iUart->SetBaud(TUart::E115200);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   441
		}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   442
	
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   443
	TUart::TDataBits databits = (TUart::TDataBits)aConfig.iDataBits;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   444
	TUart::TStopBits stopbits;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   445
	switch(aConfig.iStopBits)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   446
		{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   447
		case EStop2:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   448
			stopbits=TUart::E2Stop;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   449
			break;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   450
		case EStop1:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   451
		default:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   452
			stopbits=TUart::E1Stop;		
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   453
		}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   454
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   455
	TUart::TParity parity;	
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   456
	switch(aConfig.iParity)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   457
		{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   458
		case EParityEven:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   459
			parity=TUart::EEven;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   460
			break;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   461
		case EParityOdd:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   462
			parity=TUart::EOdd;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   463
			break;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   464
		case EParityMark:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   465
			parity=TUart::EMark;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   466
			break;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   467
		case EParitySpace:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   468
			parity=TUart::ESpace;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   469
			break;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   470
		case EParityNone:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   471
		default:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   472
			parity=TUart::ENone;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   473
		}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   474
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   475
	iUart->SetDataFormat(databits, stopbits, parity);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   476
	iUart->EnableFifo(TUart::EEnabled, TUart::ETrigger8, TUart::ETrigger8);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   477
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   478
	iUart->Enable();
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   479
	}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   480
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   481
void DCommBeagle::Caps(TDes8 &aCaps) const
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   482
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   483
// return our caps
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   484
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   485
	{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   486
	GetTemplateCommsCaps(aCaps,iUnit);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   487
	}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   488
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   489
void DCommBeagle::Isr(TAny* aPtr)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   490
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   491
// Service the UART interrupt
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   492
//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   493
	{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   494
	DCommBeagle& d=*(DCommBeagle*)aPtr;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   495
	d.iInInterrupt=1;										// going in...
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   496
	TUint xon=d.iLdd->iRxXonChar;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   497
	TUint xoff=d.iLdd->iRxXoffChar;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   498
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   499
	// Read the interrupt source register to determine if it is a Receive, Transmit or Modem Signals change interrupt.
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   500
	// If required also, clear interrupts at the source.
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   501
	// Then process the interrupt condition as in the following pseudo-code extract:
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   502
	//
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   503
	TUint interruptId = IIR::iMem.Read(*(d.iUart));
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   504
	TUint interruptEn = IER::iMem.Read(*(d.iUart));	
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   505
	
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   506
	if((interruptId & IIR::IT_TYPE::ETHR) && (interruptEn & IER::THR_IT::KMask) )
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   507
		{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   508
		while(Kern::PowerGood() && !d.iUart->TxFifoFull())	
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   509
			{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   510
			TInt r=d.TransmitIsr();
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   511
			if(r<0)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   512
				{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   513
				// Disable the Transmit Interrupt in Hardware
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   514
				d.iUart->DisableInterrupt(TUart::EIntThr);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   515
				d.iTransmitting=EFalse;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   516
				break;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   517
				}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   518
			d.iUart->Write(r);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   519
			}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   520
		d.CheckTxBuffer();
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   521
		}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   522
		
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   523
	if((interruptId & IIR::IT_TYPE::ERHR) && (interruptEn & IER::RHR_IT::KMask) )
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   524
		{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   525
		TUint rx[32];
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   526
		TInt rxi=0;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   527
		TInt x=0;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   528
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   529
		while(!d.iUart->RxFifoEmpty() && rxi<32)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   530
			{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   531
			TUint ch = d.iUart->Read();
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   532
			if (ch==xon)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   533
				x=1;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   534
			else if (ch==xoff)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   535
				x=-1;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   536
			else
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   537
				rx[rxi++]=ch;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   538
			}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   539
		d.ReceiveIsr(rx,rxi,x);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   540
		}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   541
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   542
	if((interruptId & IIR::IT_TYPE::EModem) && (interruptEn & IER::MODEM_STS_IT::KMask) )
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   543
		{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   544
		TUint signals=d.Signals()&KDTEInputSignals;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   545
		if (signals != d.iSignals)
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   546
			{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   547
			d.iSignals=signals;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   548
			d.iLdd->StateIsr(signals);
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   549
			}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   550
		}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   551
	d.iInInterrupt=0;										// going out...
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   552
	}
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   553
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   554
DECLARE_STANDARD_PDD()
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   555
	{
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   556
	return new DDriverComm;
cdb163c0843f Initial contribution of the euart driver by Accenture.
george.norton
parents:
diff changeset
   557
	}