x52_joyext.cpp

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/*
 * x52_joyext Node
 * by Christian Holl (www.rad-lab.net)
 * License: BSD
 *
 * Have Fun! :-)
 */

/*
 * Modified by Murilo FM (muhrix@gmail.com)
 * 12 Dec 2013
 *
 */


#include "x52_joyext.h"

X52_JoyExt::X52_JoyExt(ros::NodeHandle &n):nh(n)
{
   //bzero(updateLED,10);
   memset(updateLED,1,10);
   updateLED_b=false;
   memset(updateMFD,true,3);

   updateDate=false;
   updateTime=false;
   memset(updateOffset,false,2);
   updateBrightnessMFD=false;
   updateBrightnessLED=false;
   bzero(LED,19);
   //memset(LED,1,19);

   bzero(Date,3);
   bzero(Time,2);
   bzero(Offset,2);
   brightnessMFD=255;
   brightnessLED=255;

   updateBrightnessLED=true;
   updateBrightnessMFD=true;

   //MFD content write
   mfd_content[0]="x52_joyext Node";
   mfd_content[1]=" Joystick under ";
   mfd_content[2]="   ROS Control  ";


   int rate;
   n.param("loop_rate", rate, 100);
   loop_rate=new ros::Rate(rate);

   subleds=nh.subscribe("leds",1000, &X52_JoyExt::cb_leds,this);
   submfd_text=nh.subscribe("mfd_text",1000, &X52_JoyExt::cb_mfd_text,this);
   subdate=nh.subscribe("mfd_date",1000, &X52_JoyExt::cb_date,this);
   subtime=nh.subscribe("mfd_time",1000, &X52_JoyExt::cb_time,this);
   subbrightnessMFD=nh.subscribe("mfd_brightness",1000, &X52_JoyExt::cb_brighnessMFD,this);
   subbrightnessLED=nh.subscribe("leds_brightness",1000, &X52_JoyExt::cb_brighnessLED,this);

   //Move to handling
   send_to_joystick();
}


X52_JoyExt::~X52_JoyExt()
{
        delete loop_rate;
}

void X52_JoyExt::cb_leds(const x52_joyext::x52_led_colorConstPtr &msg)
{
        if(msg->color_leds[x52_joyext::x52_led_color::LED_FIRE])
        {
                if( msg->color_leds[ x52_joyext::x52_led_color::LED_FIRE ] >2)
                        ROS_WARN("WRONG VALUE (%i) FOR LED FOUND! Value must be in the range of 0-2",msg->color_leds[x52_joyext::x52_led_color::LED_FIRE]);
                LED[0]=(msg->color_leds[x52_joyext::x52_led_color::LED_FIRE]>1);
                updateLED[0]=true;
        }
        //  void setLEDs(uint8_t inValue, uint8_t *red, uint8_t *green, bool *update)
        setLEDs(msg->color_leds[x52_joyext::x52_led_color::LED_A]       ,&LED[X52PRO_LED_ARED-1] ,&LED[X52PRO_LED_AGREEN-1] ,&updateLED[1]);
        setLEDs(msg->color_leds[x52_joyext::x52_led_color::LED_B]       ,&LED[X52PRO_LED_BRED-1] ,&LED[X52PRO_LED_BGREEN-1] ,&updateLED[2]);
        setLEDs(msg->color_leds[x52_joyext::x52_led_color::LED_D]       ,&LED[X52PRO_LED_DRED-1] ,&LED[X52PRO_LED_DGREEN-1] ,&updateLED[3]);
        setLEDs(msg->color_leds[x52_joyext::x52_led_color::LED_E]       ,&LED[X52PRO_LED_ERED-1] ,&LED[X52PRO_LED_EGREEN-1] ,&updateLED[4]);
        setLEDs(msg->color_leds[x52_joyext::x52_led_color::LED_T12]     ,&LED[X52PRO_LED_T1RED-1],&LED[X52PRO_LED_T1GREEN-1],&updateLED[5]);
        setLEDs(msg->color_leds[x52_joyext::x52_led_color::LED_T34]     ,&LED[X52PRO_LED_T2RED-1],&LED[X52PRO_LED_T2GREEN-1],&updateLED[6]);
        setLEDs(msg->color_leds[x52_joyext::x52_led_color::LED_T56]     ,&LED[X52PRO_LED_T3RED-1],&LED[X52PRO_LED_T3GREEN-1],&updateLED[7]);
        setLEDs(msg->color_leds[x52_joyext::x52_led_color::LED_POV2],&LED[X52PRO_LED_CORED-1],&LED[X52PRO_LED_COGREEN-1],&updateLED[8]);
        setLEDs(msg->color_leds[x52_joyext::x52_led_color::LED_I]       ,&LED[X52PRO_LED_IRED-1] ,&LED[X52PRO_LED_IGREEN-1] ,&updateLED[9]);
}

void  X52_JoyExt::cb_mfd_text(const x52_joyext::x52_mfdConstPtr &msg)
{
        int curPos=msg->pos+16*msg->line;

        if(msg->clearDisplay)
        {
                mfd_content[0]="                ";
                mfd_content[1]="                ";
                mfd_content[2]="                ";
                memset(updateMFD,true,3);
        }

        for (std::string::const_iterator it=msg->data.begin(); it != msg->data.end(); ++it)
        {
                char curChr=*it;

                if(curPos<3*16)
                {
                        uint8_t curLine=curPos/16;
                        uint8_t posInLine=curPos-curLine*16;
                        if(curChr=='\n')
                        {
                                //Fill the rest of the line with spaces
                                for (curPos = 0; curPos < (curLine+1)*16; ++curPos)
                                {
                                        posInLine=curPos-curLine*16;
                                        mfd_content[curLine][posInLine]=curChr;
                                }
                                continue;
                        }
                        else
                        {
                                mfd_content[curLine][posInLine]=curChr;
                                updateMFD[curLine]=true;
                                curPos++;
                        }
                }
                else
                {
                        ROS_WARN("MFD text exceeds display bounds!");
                        break;
                }
        }
        ROS_DEBUG("Line 0: %s", mfd_content[0].c_str());
        ROS_DEBUG("Line 1: %s", mfd_content[1].c_str());
        ROS_DEBUG("Line 2: %s", mfd_content[2].c_str());
}

void  X52_JoyExt::cb_date(const x52_joyext::x52_dateConstPtr &msg)
{
                Date[2]=msg->date_field_left;
                Date[1]=msg->date_field_center;
                Date[0]=msg->date_field_right;
                updateDate=true;
}

void  X52_JoyExt::cb_time(const x52_joyext::x52_timeConstPtr &msg)
{
        if(msg->set_time)
        {
                updateTime=true;
                Time_24=msg->time_24;
                Time[0]=msg->time_hours;
                Time[1]=msg->time_minutes;
        }

        if(msg->set_offset_0)
        {
                updateOffset[0]=true;
                Offset_24[0]=msg->offset_0_24;
                Offset_Inv[0]=msg->offset_0_inv;
                Offset[0]=msg->offset_0;
        }

        if(msg->set_offset_1)
        {
                updateOffset[1]=true;
                Offset_24[1]=msg->offset_1_24;
                Offset_Inv[1]=msg->offset_1_inv;
                Offset[1]=msg->offset_1;
        }
}

void  X52_JoyExt::cb_brighnessMFD(const std_msgs::UInt8ConstPtr &msg)
{
                brightnessMFD=msg->data;
                updateBrightnessMFD=true;
}

void  X52_JoyExt::cb_brighnessLED(const std_msgs::UInt8ConstPtr &msg)
{
                brightnessLED=msg->data;
                updateBrightnessLED=true;
}


#define SLEEP_AFTER_COMMAND usleep(5000)

void X52_JoyExt::send_to_joystick()
{
        /*Get Joystick */
        struct x52 *hdl=0;
        while(hdl==0 && ros::ok())
        {
                ROS_INFO("Trying to find joystick...");
                hdl=x52_init();
                loop_rate->sleep();
        }
        ROS_INFO("Joystick found...");
        x52_debug(hdl, 1);


        x52_setled(hdl,0,0);

        while(ros::ok())
        {
                //Update Joystick LED
                        for (int lednum = 0; lednum < 10; ++lednum)
                        {
                                if(updateLED[lednum])
                                {
                                        ROS_DEBUG("Setting LED: %i",lednum);
                                        if(lednum != 0)
                                        {
                                                int led=(lednum)*2;
                                                x52_setled(hdl,led,LED[led-1]);
                                                x52_setled(hdl,led+1,LED[led]);
                                        }
                                        else
                                        {
                                                x52_setled(hdl,1,LED[0]);
                                        }
                                        updateLED[lednum]=false;
                                        usleep(50);
                                }
                        }

                //Update Brightness MFD
                        if(updateBrightnessMFD)
                        {
                                x52_setbri(hdl,1,brightnessMFD);
                                updateBrightnessMFD=false;
                                usleep(50);
                        }

                //Update Brightness LED

                        if(updateBrightnessLED)
                        {
                                x52_setbri(hdl,0,brightnessLED);
                                updateBrightnessLED=false;
                                SLEEP_AFTER_COMMAND;
                        }

                //Update MFD Text
                        for (int line = 0; line < 3; ++line)
                        {
                                if(updateMFD[line])
                                {
                                        x52_settext(hdl,line,(char*)mfd_content[line].c_str(),mfd_content[line].length());
                                        updateMFD[line]=false;
                                }
                                SLEEP_AFTER_COMMAND;
                        }

                //Update Date
                        if(updateDate)
                        {
                                x52_setdate(hdl,Date[0],Date[1],Date[2]);
                                updateDate=false;
                                SLEEP_AFTER_COMMAND;
                        }

                //Update  Time
                        if(updateTime)
                        {
                                x52_settime(hdl,Time_24,Time[0], Time[1]);
                                updateTime=false;
                                SLEEP_AFTER_COMMAND;
                        }

                //Offset  Time
                        for (int o = 0; o < 2; ++ o)
                        {
                                if(updateOffset[o])
                                {
                                        x52_setoffs(hdl,o,Offset_24[o],Offset_Inv[o],Offset[o]);
                                        updateOffset[o]=false;
                                }
                                SLEEP_AFTER_COMMAND;
                        }

                ros::spinOnce();
                loop_rate->sleep();
        }
}