/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

using System;

using System.Collections.Generic;

using System.Text;

using System.Xml;

using SymbianStructuresLib.Arm.Exceptions;

using SymbianStructuresLib.Arm.Registers;

using SymbianStructuresLib.Arm.Registers.EmbeddedTrace;

using SymbianETMLib.Common.Types;

using SymbianETMLib.Common.Utilities;

using SymbianETMLib.Common.Exception;

using SymbianETMLib.Common.Config;

using SymbianETMLib.ETB.Buffer;

namespace SymbianETMLib.ETB.Config

{

    public class ETBConfig : ETConfigBase

    {

        #region Constructors

        public ETBConfig( ETBBuffer aBuffer )

            : base( aBuffer )

        {

        }

        public ETBConfig( ETBBuffer aBuffer, string aETBXmlFile )

            : this( aBuffer )

        {

            bool loaded = ExtractFromXml( aETBXmlFile );

            if ( !loaded )

            {

                throw new ETMException( "ERROR: XML input data is corrupt or invalid" );

            }

        }

        #endregion

        #region API

        #endregion

        #region Properties

        public uint RegisterETBRamWritePointer

        {

            get { return iRegistersETB[ TArmRegisterType.EArmReg_ETB_RamWritePointer ].Value; }

            set { iRegistersETB[ TArmRegisterType.EArmReg_ETB_RamWritePointer ].Value = value; }

        }

        #endregion

        #region Internal methods

        protected new ETBBuffer Buffer

        {

            get { return base.Buffer as ETBBuffer; }

        }

        private bool ExtractFromXml( string aFileName )

        {

            bool success = false;

            //

            try

            {

                XmlReaderSettings settings = new XmlReaderSettings();

                settings.ConformanceLevel = ConformanceLevel.Auto;

                settings.IgnoreComments = true;

                settings.CheckCharacters = true;

                settings.IgnoreWhitespace = true;

                //

                using ( XmlReader reader = XmlReader.Create( aFileName, settings ) )

                {

                    XmlDocument document = new XmlDocument();

                    document.Load( reader );

                    XmlElement root = document.DocumentElement;

                    if ( root == null || root.Name != "etb" )

                    {

                        throw new ETMException( "ERROR - document root expected to be \'etb\'" );

                    }

                    else

                    {

                        foreach ( XmlNode node in root )

                        {

                            string nodeName = node.Name.Trim().ToUpper();

                            if ( nodeName == "REGISTERS" )

                            {

                                ExtractXmlRegisters( node );

                            }

                            else if ( nodeName == "EXCEPTION_VECTORS" )

                            {

                                ExtractXmlExceptionVectors( node );

                            }

                            else if ( nodeName == "RAW_DATA" )

                            {

                                ExtractXmlRawData( node );

                            }

                            else if ( nodeName == "THREAD_TABLE" )

                            {

                                ExtractXmlThreadTable( node );

                            }

                        }

                    }

                }

                // Primed okay?

                success = true;

                // Re-order data based upon write pointer value

                if ( RegisterETBRamWritePointer != 0 )

                {

                    Buffer.Reorder( RegisterETBRamWritePointer );

                }

            }

            catch ( System.Exception )

            {

            }

            //

            return success;

        }

        private void ExtractXmlRegisters( XmlNode aNode )

        {

            foreach ( XmlNode node in aNode.ChildNodes )

            {

                string nodeName = node.Name.Trim().ToUpper();

                if ( nodeName == "REGISTER" && node.Attributes.Count == 2 )

                {

                    XmlAttributeCollection attributes = node.Attributes;

                    //

                    XmlAttribute attribName = attributes[ "name" ];

                    XmlAttribute attribValue = attributes[ "value" ];

                    //

                    if ( attribName != null && !string.IsNullOrEmpty( attribName.Value.Trim() ) &&

                         attribValue != null && !string.IsNullOrEmpty( attribValue.Value.Trim() )

                        )

                    {

                        string name = attribName.Value.Trim().ToUpper();

                        uint value = uint.Parse( attribValue.Value, System.Globalization.NumberStyles.HexNumber );

                        //

                        TArmRegisterType regType = ETMTextToEnumConverter.ToRegisterType( name );

                        switch ( regType )

                        {

                        default:

                            break;

                        case TArmRegisterType.EArmReg_ETM_Id:

                            base.RegisterETMId = value;

                            break;

                        case TArmRegisterType.EArmReg_ETM_Control:

                            base.RegisterETMControl = value;

                            break;

                        case TArmRegisterType.EArmReg_ETB_RamWritePointer:

                            RegisterETBRamWritePointer = value;

                            break;

                        }

                    }

                }

            }

        }

        private void ExtractXmlExceptionVectors( XmlNode aNode )

        {

            foreach ( XmlNode node in aNode.ChildNodes )

            {

                string nodeName = node.Name.Trim().ToUpper();

                if ( nodeName == "REGISTER" && node.Attributes.Count == 2 )

                {

                    XmlAttributeCollection attributes = node.Attributes;

                    //

                    XmlAttribute attribName = attributes[ "name" ];

                    XmlAttribute attribValue = attributes[ "value" ];

                    //

                    if ( attribName != null && !string.IsNullOrEmpty( attribName.Value.Trim() ) &&

                         attribValue != null && !string.IsNullOrEmpty( attribValue.Value.Trim() )

                        )

                    {

                        string name = attribName.Value.Trim().ToUpper();

                        uint value = uint.Parse( attribValue.Value, System.Globalization.NumberStyles.HexNumber );

                        //

                        TArmExceptionVector exceptionVectorType = ETMTextToEnumConverter.ToExceptionVector( name );

                        SetExceptionVector( exceptionVectorType, value );

                    }

                }

            }

        }

        private void ExtractXmlThreadTable( XmlNode aNode )

        {

            foreach ( XmlNode node in aNode.ChildNodes )

            {

                string nodeName = node.Name.Trim().ToUpper();

                if ( nodeName == "THREAD" && node.Attributes.Count == 3 )

                {

                    XmlAttributeCollection attributes = node.Attributes;

                    //

                    XmlAttribute attribName = attributes[ "name" ];

                    XmlAttribute attribAddress = attributes[ "address" ];

                    XmlAttribute attribId = attributes[ "id" ];

                    //

                    if ( attribName != null && !string.IsNullOrEmpty( attribName.Value.Trim() ) &&

                         attribAddress != null && !string.IsNullOrEmpty( attribAddress.Value.Trim() )

                        )

                    {

                        string name = attribName.Value.Trim();

                        uint value = uint.Parse( attribAddress.Value, System.Globalization.NumberStyles.HexNumber );

                        // Add the missing colon back in.

                        if ( name.Contains( ":" ) )

                        {

                            name = name.Replace( ":", "::" );

                        }

                        AddContextIdMapping( value, name );

                    }

                }

            }

        }

        private void ExtractXmlRawData( XmlNode aNode )

        {

            List<string> lines = new List<string>();

            //

            foreach ( XmlNode node in aNode.ChildNodes )

            {

                string nodeName = node.Name.Trim().ToUpper();

                if ( nodeName == "DATA" )

                {

                    string line = node.InnerText;

                    lines.Add( line );

                }

                else

                {

                    break;

                }

            }

            // Convert strings to bytes

            List<byte> data = new List<byte>();

            foreach ( string line in lines )

            {

                int len = line.Length;

                if ( len % 2 != 0 )

                {

                    throw new ETMException( "ERROR: Raw data is corrupt - invalid line length" );

                }

                for ( int i = 0; i < len; i += 2 )

                {

                    string byteString = line.Substring( i, 2 );

                    byte b = System.Convert.ToByte( byteString, 16 );

                    data.Add( b );

                }

            }

            // Save entire data

            base.Buffer.AddRange( data.ToArray() );

        }

        #endregion

        #region From System.Object

        #endregion

        #region Data members

        private ArmETBRegisterCollection iRegistersETB = new ArmETBRegisterCollection();

        #endregion

    }

}