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/*------------------------------------------------------------------------------
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-- This file is a part of the SocExplorer Software
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-- Copyright (C) 2014, Plasma Physics Laboratory - CNRS
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; either version 2 of the License, or
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-- (at your option) any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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-------------------------------------------------------------------------------*/
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/*-- Author : Alexis Jeandet
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-- Mail : alexis.jeandet@member.fsf.org
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----------------------------------------------------------------------------*/
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#include "uartpollingthread.h"
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#include <socexplorerengine.h>
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UARTPollingThread::UARTPollingThread(socexplorerplugin *parent) :
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QThread((QObject*)parent)
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{
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this->plugin = parent;
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uartMutex = new QMutex();
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uartOpened = false;
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fifoDebugConfigured = false;
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p_fifoDebugEnabled = false;
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this->moveToThread(this);
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}
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UARTPollingThread::~UARTPollingThread()
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{
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this->requestInterruption();
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while(isRunning());
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}
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void UARTPollingThread::run()
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{
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char ch[4097];
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int timeout =10;
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SocExplorerEngine::message(this->plugin,"Entering APB UART polling thread",3);
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while (!this->isInterruptionRequested())
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{
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if(p_fifoDebugEnabled)
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{
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if(fifoDebugConfigured)
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{
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if(this->plugin->baseAddress()!=-1)
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{
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unsigned int status_reg,data;
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char ch;
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int cnt=0;
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QString printdata="";
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plugin->parent->Read(&status_reg,1,this->plugin->baseAddress()+APB_UART_STATUS_REG);
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while ((status_reg & 4)==0)
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{
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plugin->parent->Read(&data,1,this->plugin->baseAddress()+APB_UART_FIFO_DEBUG_REG);
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ch = (char)(0xff & data);
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printdata+=ch;
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plugin->parent->Read(&status_reg,1,this->plugin->baseAddress()+APB_UART_STATUS_REG);
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cnt++;
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if(Q_UNLIKELY(cnt>100))
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{
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break;
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}
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}
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timeout = 100;
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if(printdata!="")
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emit apbUartTextReceived(printdata);
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}
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else
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{
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this->plugin->setBaseAddress(SocExplorerEngine::self()->getEnumDeviceBaseAddress(this->plugin,this->plugin->VID(),this->plugin->PID(),0));
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}
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}
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else
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{
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configFifoDebug(true);
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}
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}
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else
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{
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int read =0,avail=0;
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uartMutex->lock();
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if(uartOpened)
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{
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avail = rs232availablebytes(this->uart);
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SocExplorerEngine::message(this->plugin,QString("%1 available bytes on uart").arg(read),3);
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if(avail)
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{
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if(avail>=4096)
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{
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read = rs232read(this->uart,ch,4096);
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timeout = 0;
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}
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else
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{
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read = rs232read(this->uart,ch,avail);
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timeout = 10;
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}
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SocExplorerEngine::message(this->plugin,QString("Read %1 bytes on uart").arg(read),3);
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ch[read]='\0';
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}
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else
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{
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timeout = 100;
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}
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}
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uartMutex->unlock();
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if(read>=1)
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{
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SocExplorerEngine::message(this->plugin,QString("Received %1 char(s) from APBUART").arg(read),3);
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emit this->apbUartTextReceived(QString(ch));
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}
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}
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msleep(timeout);
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}
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}
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void UARTPollingThread::sendChar(char c)
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{
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if(p_fifoDebugEnabled)
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{
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if(this->plugin->baseAddress()!=-1)
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{
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unsigned int i=0x0FF & c;
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plugin->parent->Write(&i,1,this->plugin->baseAddress()+APB_UART_FIFO_DEBUG_REG);
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}
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}
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else
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{
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uartMutex->lock();
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rs232write(this->uart,&c,1);
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uartMutex->unlock();
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}
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}
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bool UARTPollingThread::openUart()
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{
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uartMutex->lock();
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if(uartOpened)
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{
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closeUart();
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}
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SocExplorerEngine::message(this->plugin,"Opening UART "+this->portName,3);
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this->uart = rs232open((char*)this->portName.toStdString().c_str());
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if(this->uart!=badPortValue)
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{
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SocExplorerEngine::message(this->plugin,QString("Configuring UART, speed =%1").arg(this->uartSpeed),3);
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rs232setup(this->uart,8,this->uartSpeed,rs232parityNo,rs232OneStop);
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uartOpened = true;
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}
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uartMutex->unlock();
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return uartOpened;
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}
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void UARTPollingThread::closeUart()
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{
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uartMutex->lock();
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rs232close(this->uart);
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uartOpened = false;
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uartMutex->unlock();
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}
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void UARTPollingThread::setPortName(QString name)
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{
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SocExplorerEngine::message(this->plugin,"Changing UART port Name: "+name,3);
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this->portName = name;
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}
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void UARTPollingThread::setPortSpeedStr(QString speed)
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{
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SocExplorerEngine::message(this->plugin,"Changing UART speed: "+speed,3);
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this->uartSpeed = speed.toInt();
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}
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void UARTPollingThread::setPortSpeed(int speed)
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{
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SocExplorerEngine::message(this->plugin,QString("Changing UART speed: %1").arg(speed),3);
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this->uartSpeed = speed;
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}
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void UARTPollingThread::setFifoDebugEable(bool enable)
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{
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if(enable)
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SocExplorerEngine::message(this->plugin,"Enabling APB UART FIFO debug mode",3);
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else
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SocExplorerEngine::message(this->plugin,"Disabling APB UART FIFO debug mode",3);
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if(uartOpened && enable)
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{
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closeUart();
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}
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this->fifoDebugConfigured = false;
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configFifoDebug(enable);
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this->p_fifoDebugEnabled = enable;
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}
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bool UARTPollingThread::fifoDebugEnabled()
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{
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return p_fifoDebugEnabled;
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}
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void UARTPollingThread::configFifoDebug(bool enable)
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{
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SocExplorerEngine::message(this->plugin,"Configuring APB UART in FIFO debug mode",3);
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if(this->plugin->baseAddress()==-1)
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{
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this->plugin->setBaseAddress(SocExplorerEngine::self()->getEnumDeviceBaseAddress(this->plugin,this->plugin->VID(),this->plugin->PID(),0));
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}
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if(this->plugin->baseAddress()!=-1)
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{
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if(enable)
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{
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unsigned int ctrl_reg= 0x843;
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this->plugin->parent->Write(&ctrl_reg,1,this->plugin->baseAddress()+APB_UART_CONTROL_REG);
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this->fifoDebugConfigured = true;
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}
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else
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{
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unsigned int ctrl_reg;
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/* Firts get Control reg value*/
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this->plugin->parent->Read(&ctrl_reg,1,this->plugin->baseAddress()+APB_UART_CONTROL_REG);
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ctrl_reg = ctrl_reg & (~(1<<11));
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this->plugin->parent->Write(&ctrl_reg,1,this->plugin->baseAddress()+APB_UART_CONTROL_REG);
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this->fifoDebugConfigured = true;
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}
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}
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}
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