author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 01:39:10 +0200 | |
changeset 0 | cec860690d41 |
permissions | -rw-r--r-- |
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// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// This file implements the DExUartPhysicalChannelEmul class functions. |
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// This is the implementation os serila port driver for emulator |
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// target, i.e serial port of windows PC. This pdd is actually an |
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// application for windows serial driver and therefore uses windows |
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// API to access windows serial driver functionality |
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// |
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// |
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|
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// include h4 specific header file |
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#include "d_expio_emul.h" |
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|
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/** |
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PDD entry point |
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This function is called when the PDD is loaded. This creates a factory |
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object for PDD. DECLARE_STANDARD_PDD macro defines the first export to |
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represent the DLL factory function, that will be called first by loader |
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after loading the PDD. |
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*/ |
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DECLARE_STANDARD_PDD() |
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{ |
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// Create a PDD factory object, i.e instance of DPhysicalDevice derived |
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// class. This is the first step that is done after loading the driver. |
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// Physical device constructor inturn creates a Physical Channel. |
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// |
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DExEmulPhysicalDevice* pD = new DExEmulPhysicalDevice; |
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if(pD) |
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{ |
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// TDynamicDfcQue is used for creating and destroying a DFC as needed |
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// This extends TDfcQue with destroy method. This ensures there is |
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// no memory leak done while using DFC queue |
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// |
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TDynamicDfcQue* pDfcQ; |
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// Create a new DFC queue using kernel API, Kern::DynamicDfcQCreate(). It |
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// allocates a TDynamicDfcQue object on the heap and initializes it with |
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// provided parameters like thread priority for the queue. Thread priority |
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// has to be chosen carefully, as priority higher than the kernel threads |
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// used for timers may adversely effect the system performance, nano |
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// kernel ticks. |
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// |
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TInt r = Kern::DynamicDfcQCreate(pDfcQ,KExEmulUartDfcPriority, |
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KExEmulUartDfcName); |
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if (KErrNone==r) |
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{ |
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// Store the DFC thread pointer to return when required |
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pD->iDfcQueue = pDfcQ; |
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// Success return point |
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return pD; |
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} |
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// if DFCQ creation failed, then fail the PDD loading, hence asynchronously close |
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// the LDD factory object created. |
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// |
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pD->AsyncClose(); |
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} |
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// Failure exit point |
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return NULL; |
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} |
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|
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/** |
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PDD factory constructor. This is called while creating the PDD factory |
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object as a part of the driver (PDD) loading. This is called after the |
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base class constructor, i.e DExUartPhysicalDevice() |
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*/ |
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DExEmulPhysicalDevice::DExEmulPhysicalDevice() |
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{ |
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// if multiple units are supported, then iUnitsMask is set here |
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// to indicate the units being supported by the driver. |
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} |
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|
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/** |
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Physical device destructor. This is called whicle unloading the PDD |
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*/ |
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DExEmulPhysicalDevice::~DExEmulPhysicalDevice() |
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{ |
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// If a Dynamic Dfc Queue is created, delete it to ensure there is no |
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// memory leak. |
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// |
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if (iDfcQueue) |
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{ |
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// Destroys the DFC queue.The function destroys the DFC queue, killing |
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// the DFC thread and deleting the TDynamicDfcQue object itself |
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// |
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iDfcQueue->Destroy(); |
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} |
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} |
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|
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/** |
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PDD factory object (physical device) create. This is called by framework |
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to create a physical channel. It is called in the context of the client |
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user-side thread that requested the creation of the logical channel. |
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This is a result of a user-side call to RBusLogicalChannel::DoCreate(). |
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|
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@param aChannel |
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reference to the physical channel object created |
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107 |
|
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@return KErrNone for success or KErrNoMemory for failure |
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*/ |
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TInt DExEmulPhysicalDevice::Create(DBase*& aChannel,TInt aUnit, const TDesC8* aInfo, |
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const TVersion& aVer) |
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112 |
{ |
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// Create the Physical channel |
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DExUartPhysicalChannelEmul *device = new DExUartPhysicalChannelEmul; |
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if (!device) |
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return KErrNoMemory; |
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117 |
|
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aChannel = device; |
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119 |
|
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// Call the second stage contructor of physical channel |
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return device->DoCreate(aUnit,aInfo,aVer); |
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} |
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123 |
|
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124 |
/** |
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Constructor for physical channel. Called after the base class constructor |
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*/ |
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DExUartPhysicalChannelEmul::DExUartPhysicalChannelEmul() |
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:iConfigured(EFalse), |
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iBytesRead(0), |
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iRxPollTimer(RxPollTimerCallback,this) // Timer to poll Rx data |
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131 |
{ |
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} |
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133 |
|
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134 |
/** |
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Hardware peripheral class (uart) Destructor |
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*/ |
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DExUartPhysicalChannelEmul::~DExUartPhysicalChannelEmul() |
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138 |
{ |
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// Cancel the Rx poll timer. NTimer.Cancel() Cancel a nanokernel |
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// timer. Removes this timer from the nanokernel timer queue. |
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// Does nothing if the timer is inactive or has already expired. |
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// If the timer was queued and DFC callback requested it is possible |
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// for the expiry handler to run even after Cancel() has been called. |
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// |
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if (iTimerStatus==KTimerStarted) |
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iRxPollTimer.Cancel(); |
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147 |
|
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// close the port if the handle is invalid |
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if (hCommPort!=INVALID_HANDLE_VALUE) |
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150 |
{ |
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// Close the Serial Port after reading data |
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CloseHandle(hCommPort); |
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KEXDEBUG(Kern::Printf("Emulator::Serial Port Closed")); |
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} |
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155 |
} |
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156 |
|
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157 |
/** |
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158 |
Physical channel second stage constructor. This is called from the DPhysicalDevice::Create() |
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after creating the physical channel. Any further initializations as a part of the physical |
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channel creation are done here. |
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161 |
|
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@param aUnit |
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device unit number |
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@param aInfo |
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device related information |
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@param aVer |
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version number |
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@return |
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*/ |
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TInt DExUartPhysicalChannelEmul::DoCreate(TInt aUnit, const TDesC8* aInfo, const TVersion& aVer) |
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171 |
{ |
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TInt r; |
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173 |
|
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// We are not using these parameters here, and therefore making them void to avoid any |
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// warning messages during build. If multiple units are supported, creating the channel |
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// w.r.t unit can be controlled here |
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// |
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(void)aUnit; |
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(void)aInfo; |
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(void)aVer; |
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181 |
|
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// TCommConfigV01 structure defined in d32comm.h is used |
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// to hold the configuration details like baudrate, parity, |
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// databits etc for serial |
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// |
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TCommConfigV01 cfg; |
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// Configure the channel by default, (9600 baud rate) |
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cfg.iRate = EBps9600; |
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r = Configure(cfg); |
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if (r!=KErrNone) |
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191 |
{ |
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// Configuration failed, still continue by updating device state |
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iConfigured=EFalse; |
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} |
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else |
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196 |
{ |
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// Device configured successfully |
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iConfigured=ETrue; |
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199 |
} |
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200 |
|
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201 |
// Physical channel creation is successful |
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return KErrNone; |
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} |
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204 |
|
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205 |
/** |
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206 |
DfcQ - Creates a DFC queue dedicated for the tutorial driver. By default |
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logical channel derived from DLogicalChannel has a DFCQ, and DFC thread 0 |
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is generally used. However, driver can choose o create it's own DFC and |
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use it for queuing it's messages to this queue. In this case, PDD can |
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implement this function, DfcQ(), which is called by LDD to initialize it's |
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messgage queue with this DFC. |
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212 |
|
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@return refernce to the created TDynamicDfcQue object |
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*/ |
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TDynamicDfcQue* DExUartPhysicalChannelEmul::DfcQ() |
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{ |
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// return the dfc thread created for this driver. one per uint/device |
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return ((DExEmulPhysicalDevice*)iLdd->iPhysicalDevice)->iDfcQueue; |
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} |
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|
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/** |
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Get the capabilities of the channel. This can be used by the user to get |
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the capabilities for the channel from PSL. |
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|
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@param aCaps |
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descriptor returned after filling with capabilities |
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*/ |
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void DExUartPhysicalChannelEmul:: Caps(TDes8& aCaps) |
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{ |
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// Package buffer of TCommCapsV03. This creates a descriptor |
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// for the commcaps structure, and provide compatibility |
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// to use with API using descriptors |
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// |
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TCommCaps3 capsBuf; |
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|
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// Retrieves the data structure from the package buffer. TCommCapsV03 |
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// holds the uart capabilities information. |
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// |
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TCommCapsV03 &caps=capsBuf(); |
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|
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caps.iRate=KCapsBps9600; // baudrate |
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caps.iDataBits=KCapsData8; // data size |
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caps.iFifo=KCapsHasFifo; // fifo enabled |
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caps.iBreakSupported=EFalse;// no braek support |
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|
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// [TDes8::MaxLength()] - Get the descriptor's length. |
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TInt len = aCaps.MaxLength(); |
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|
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// [TDes8::FillZ(len)] -Fill the descriptor's data area with binary |
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// zeroes, replacing any existing data and change its length. |
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aCaps.FillZ(len); |
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|
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TInt size = sizeof(caps); |
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if (size>len) |
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size=len; |
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|
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// [TDes8::Copy()] - Copy the data of length (size) into aDes descriptor |
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// replacing any existing data in the descriptor. |
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aCaps.Copy((TUint8*)&caps, size); |
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|
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aCaps=capsBuf.Left(Min(capsBuf.Length(),aCaps.MaxLength())); |
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} |
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|
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/** |
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Configure the hardware device (Uart). This is device specific API, that |
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provides functionality to configure the uart. Uart configuration settings are |
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passed to this function by user. User calls this by using |
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RBusLogicalChannel::DoControl() to LDD and ldd inturn calls this PDD function |
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to do the actual operation on the device. |
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|
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@param aConfig |
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configuration settings for the device |
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|
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@return KErrNone or standard error code |
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*/ |
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TInt DExUartPhysicalChannelEmul::Configure(const TCommConfigV01& aConfig) |
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{ |
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|
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// if channel is already configured to same baud rate, then no need to |
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// repeat the configuration |
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// |
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if (iConfigured!=EFalse) |
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{ |
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if(iBaudRate==aConfig.iRate) |
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return KErrNone; |
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} |
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|
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iBaudRate = aConfig.iRate; |
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|
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// variables used with the com port |
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BOOL bPortReady; |
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DCB dcb; |
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COMMTIMEOUTS commTimeouts; |
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|
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bPortReady = TRUE; // everything is OK so far |
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|
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// Open a serial port device using the CreateFile() function by specifying |
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// a filename that refers to the specific port, such as COM1 or COM2. |
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// |
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// When you open a serial port, it is opened automatically for exclusive access, |
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// so you should pass a zero for the CreateFile()'s third parameter and OPEN_EXISTING |
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// for the open mode (fifth parameter). You can add a combination of the special file |
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// mode flags to indicate overlapped I/O or any special buffering requirements, as normal. |
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// |
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// If the serial port opens successfully, a Win32 file object handle is returned. |
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// Otherwise, INVALID_HANDLE_VALUE is returned. |
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// |
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hCommPort=CreateFileA((LPCSTR)"\\\\.\\com1",GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,0,NULL); |
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if (hCommPort==INVALID_HANDLE_VALUE) |
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{ |
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Kern::Printf("Emulator::Configure: FAILED"); |
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bPortReady = FALSE; |
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DWORD winErr=GetLastError(); |
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switch (winErr) |
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|
318 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
319 |
case ERROR_INVALID_USER_BUFFER: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
320 |
case ERROR_NOT_ENOUGH_MEMORY: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
321 |
case ERROR_INSUFFICIENT_BUFFER: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
322 |
return(KErrNoMemory); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
323 |
case ERROR_ACCESS_DENIED: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
324 |
return(KErrAccessDenied); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
325 |
case ERROR_FILE_NOT_FOUND: // Reflects value returned by |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
326 |
return(KErrNotSupported); // corresponding MARM Pdd |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
327 |
case ERROR_NOT_SUPPORTED: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
328 |
return(KErrNotSupported); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
329 |
default: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
330 |
return(KErrGeneral); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
331 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
332 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
333 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
334 |
if (bPortReady) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
335 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
336 |
bPortReady = SetupComm(hCommPort, 256, 256); // set buffer sizes |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
337 |
if (!bPortReady) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
338 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
339 |
return(KErrNoMemory); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
340 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
341 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
342 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
343 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
344 |
// After you open a serial port, you must set the many flags required to configure |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
345 |
// the device. These flags are held in a device control block (DCB) structure. |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
346 |
// You can either fill in the entire DCB structure or use one of the helper functions |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
347 |
// to fill in some of the details. The GetCommState() function fills in a DCB structure |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
348 |
// with the current settings from the hardware, and you can use a corresponding |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
349 |
// SetCommState() function to specify the new settings from a DCB structure. |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
350 |
// |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
351 |
if (bPortReady) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
352 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
353 |
bPortReady = GetCommState(hCommPort, &dcb); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
354 |
if (!bPortReady) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
355 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
356 |
return(KErrGeneral); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
357 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
358 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
359 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
360 |
if (bPortReady) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
361 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
362 |
//baud rate |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
363 |
switch (aConfig.iRate) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
364 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
365 |
case EBps9600: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
366 |
dcb.BaudRate=9600; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
367 |
break; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
368 |
case EBps38400: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
369 |
dcb.BaudRate=38400; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
370 |
break; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
371 |
case EBps115200: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
372 |
dcb.BaudRate=115200; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
373 |
break; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
374 |
default: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
375 |
dcb.BaudRate=9600; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
376 |
break; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
377 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
378 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
379 |
//data bits |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
380 |
switch(aConfig.iDataBits) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
381 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
382 |
case EData7: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
383 |
dcb.ByteSize=7; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
384 |
break; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
385 |
case EData8: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
386 |
dcb.ByteSize=8; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
387 |
break; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
388 |
default: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
389 |
dcb.ByteSize=8; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
390 |
break; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
391 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
392 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
393 |
//stop bits |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
394 |
switch(aConfig.iStopBits) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
395 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
396 |
case EStop1: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
397 |
dcb.StopBits=ONESTOPBIT; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
398 |
break; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
399 |
case EStop2: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
400 |
dcb.StopBits=TWOSTOPBITS; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
401 |
break; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
402 |
default: |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
403 |
dcb.StopBits = ONESTOPBIT; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
404 |
break; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
405 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
406 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
407 |
dcb.Parity = NOPARITY; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
bPortReady = SetCommState(hCommPort, &dcb); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
410 |
if (!bPortReady) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
411 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
412 |
return(KErrGeneral); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
413 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
414 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
415 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
416 |
if (bPortReady) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
417 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
418 |
// You can find the current timeout settings using the GetCommTimeout() |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
419 |
// function, which fills a passed COMMTIMEOUTS structure. |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
420 |
// |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
421 |
bPortReady = GetCommTimeouts (hCommPort, &commTimeouts); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
422 |
if (bPortReady) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
423 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
424 |
// You can set ReadIntervalTimeout to MAXDWORD and set the |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
425 |
// ReadTotalTimeoutMultiplier and ReadTotalTimeoutConstant members |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
426 |
// to zero to indicate that the ReadFile() should return immediately. |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
427 |
// |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
428 |
commTimeouts.ReadIntervalTimeout = MAXDWORD; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
429 |
commTimeouts.ReadTotalTimeoutConstant = 0; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
430 |
commTimeouts.ReadTotalTimeoutMultiplier = 0; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
431 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
432 |
else |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
433 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
434 |
return(KErrGeneral); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
435 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
436 |
if(!SetCommTimeouts(hCommPort, &commTimeouts)) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
437 |
return(KErrGeneral); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
438 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
439 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
440 |
return KErrNone; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
441 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
442 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
443 |
// After configuring the serial port, you can start transferring data via ReadFile() |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
444 |
// and WriteFile() functions. However, you should remember that if you haven't specified |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
445 |
// the FILE_FLAG_OVERLAPPED flag in the CreateFile() flags parameter, |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
446 |
// ReadFile() will block waiting for input. This probably is good if your program spawns |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
447 |
// another thread that specifically waits for incoming serial port characters, but not |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
448 |
// if you want to issue a ReadFile() and periodically check to see whether any characters |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
449 |
// have arrived. |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
450 |
// |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
451 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
452 |
/** |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
453 |
Transmit data over uart for emulator targte, i.e serial port for pc |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
454 |
Transmit data buffer is filled and passed by user to the driver |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
455 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
456 |
@param aData |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
457 |
buffer for transmit data |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
458 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
459 |
@return KErrNone or standard error code |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
460 |
*/ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
461 |
TInt DExUartPhysicalChannelEmul::TransmitData(const TDesC8& aData) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
462 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
463 |
TInt r; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
464 |
TInt count; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
465 |
TInt size; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
466 |
TInt offset=0; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
467 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
468 |
// if the device is not configured, try to configure the device again |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
469 |
if (iConfigured==EFalse) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
470 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
471 |
// Configure the channel by default |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
472 |
TCommConfigV01 cfg; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
473 |
cfg.iRate = EBps9600; // 9600 baudrate |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
474 |
r = Configure(cfg); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
475 |
if (r!=KErrNone) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
476 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
477 |
// configure failed again, abort the request |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
478 |
iConfigured=EFalse; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
479 |
return KErrAbort; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
480 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
481 |
// configured successfully, continue with Tx |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
482 |
iConfigured=ETrue; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
483 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
484 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
485 |
// Size of the data to be transmitted is obtained from the descriptor. |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
486 |
// TDesC8::Size() gets the size of the data interms of number of bytes occupied |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
487 |
// by the data represented by the descriptor |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
488 |
// |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
489 |
count= aData.Size(); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
490 |
if (count<=0) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
491 |
return KErrAbort; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
492 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
493 |
// Loop till all the data sent from LDD is transmitted in blocks of KTxFifoSize |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
494 |
while (count>0) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
495 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
496 |
// Each block size can be max KTxFifoSize or less |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
497 |
size=(count<KTxFifoSize)?count:KTxFifoSize; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
498 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
499 |
BOOL bWriteRC; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
500 |
DWORD iBytesWritten; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
501 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
502 |
iBytesWritten = 0; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
503 |
bWriteRC = WriteFile(hCommPort, aData.Ptr(), size, &iBytesWritten, NULL); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
504 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
505 |
if (!bWriteRC || iBytesWritten == 0) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
506 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
507 |
return(KErrGeneral); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
508 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
509 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
510 |
// calculate the offset |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
511 |
offset+=iBytesWritten; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
512 |
// calculate the remaining buffer size |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
513 |
count-=iBytesWritten; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
514 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
515 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
516 |
return KErrNone; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
517 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
518 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
519 |
/** |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
520 |
Receive data over uart for emulator target, i.e uart of pc |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
521 |
Receive data buffer is filled and passed by driver to the user |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
522 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
523 |
@param aData |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
524 |
buffer for received data |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
525 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
526 |
@return KErrNone or standard error code |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
527 |
*/ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
528 |
TInt DExUartPhysicalChannelEmul::ReceiveData(TDes8& aData,TInt aLen) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
529 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
530 |
TInt ret; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
531 |
TInt size; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
532 |
TInt count; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
533 |
TInt bytesRcvd=0; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
534 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
535 |
// Size of the data to be transmitted is obtained from the descriptor. |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
536 |
// TDesC8::Size() gets the size of the data interms of number of bytes occupied |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
537 |
// by the data represented by the descriptor |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
538 |
// |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
539 |
size= aLen; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
540 |
if (size<=0) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
541 |
return KErrAbort; // Zero length request, exit and fail |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
542 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
543 |
// Keep track of the requested size |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
544 |
count=size; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
545 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
546 |
// Loop till the requested amount of data from LDD is filled or a timeout |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
547 |
while (count>0) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
548 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
549 |
BOOL bReadRC; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
550 |
char sBuffer[256]; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
551 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
552 |
memset(sBuffer,0,sizeof(sBuffer)); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
553 |
// if no data and timer expired |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
554 |
while ((bReadRC=ReadFile(hCommPort, sBuffer, sizeof(sBuffer), &iBytesRead, NULL)) == 0 |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
555 |
|| (iBytesRead==0)) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
556 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
557 |
if (iTimerStatus==KTimerExpired) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
558 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
559 |
aData.SetLength(bytesRcvd); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
560 |
return KErrTimedOut; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
561 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
562 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
563 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
564 |
if (iTimerStatus==KTimerStarted) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
565 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
566 |
// Cancel the Rx poll timer. NTimer.Cancel() Cancel a nanokernel |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
567 |
// timer. Removes this timer from the nanokernel timer queue. |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
568 |
// Does nothing if the timer is inactive or has already expired. |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
569 |
// If the timer was queued and DFC callback requested it is possible |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
570 |
// for the expiry handler to run even after Cancel() has been called. |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
571 |
// |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
572 |
iRxPollTimer.Cancel(); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
573 |
// Update status as Cancelled |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
574 |
iTimerStatus=KTimerCancelled; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
575 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
576 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
577 |
if (bReadRC && (iBytesRead>0)) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
578 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
579 |
if (iBytesRead>=static_cast<TUint>(size)) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
580 |
iBytesRead=size; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
581 |
aData.Append(TPtrC8((const TText8*)sBuffer,iBytesRead)); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
582 |
bytesRcvd+=iBytesRead; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
583 |
iBytesRead=0; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
584 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
585 |
else |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
586 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
587 |
iTimerStatus = KTimerStarted; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
588 |
// Start a nanokernel timer in one-shot mode with ISR callback |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
589 |
// Queues the timer to expire in the specified number of nanokernel |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
590 |
// ticks. The actual wait time will be at least that much and |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
591 |
// may be up to one tick more. The expiry handler will be called in |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
592 |
// ISR context. |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
593 |
// |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
594 |
ret=iRxPollTimer.OneShot(KRxPollTimeout); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
595 |
if(ret!=KErrNone) // timer creation failed |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
596 |
return ret; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
597 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
598 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
599 |
// If we have received the requested number of bytes, return |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
600 |
if (bytesRcvd>=size) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
601 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
602 |
if (iTimerStatus == KTimerStarted) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
603 |
iRxPollTimer.Cancel(); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
604 |
return KErrNone; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
605 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
606 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
607 |
// remaining bytes to be received |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
608 |
count -= bytesRcvd; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
609 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
610 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
611 |
return KErrNone; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
612 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
613 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
614 |
void DExUartPhysicalChannelEmul::RxPollTimerCallback(TAny* aPtr) |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
615 |
{ |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
616 |
KEXDEBUG(Kern::Printf("EMUL UART::Rx Timer Expired, Data Flow Stopped")); |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
617 |
((DExUartPhysicalChannelEmul*)aPtr)->iTimerStatus=KTimerExpired; |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
618 |
} |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
619 |
|
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
620 |
// |
cec860690d41
Revision: 201005
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
621 |
// End of d_expio_emul.cpp |