Raspberry Pi general information

raspiInfo.cpp

/*

List difference between Raspberry Pi board version

The MIT License (MIT)

Copyright (c) 2015 Daniel Perron

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

// revision 1.0  Daniel Perron, 17 February, 2015


#include <string>
#include <sstream>
#include <fstream>
#include <iostream>

using namespace std;


//#include "RaspiInfo.h"






#define __MAIN__

// start of raspiInfo.h
#include <string>

class  raspiInfo
{

  public:
     raspiInfo();
     std::string    Model;
     std::string    ProcessorName;
     std::string    Manufacturer;
     int            ProcessorCount;
     unsigned short ProcessorType;
     int            Revision;
     unsigned long  IOBase;
     unsigned long long SerialNumber;
     int            RamSizeInMB;
     unsigned long  BoardRevision;
     char           *GPIOPin;
     int            I2CDevice;

     static  char   R1GPIOPin[32];
     static  char   R2GPIOPin[32];
     static  char   R2PlusGPIOPin[32];


  private:
    bool ExtractToken(std::string source, std::string label, std::string& Value);
};


// end of raspiInfo.h






#define PI_IO_BASE (0x20000000)
#define PI2_IO_BASE (0x3F000000)

char  raspiInfo::R1GPIOPin[32]=         { 3, 5, 0, 0, 7, 0, 0, 0,
                                         24,21,19,23, 0, 0, 8,10,
                                          0,11,12, 0, 0,13,15,16,
                                         18,22, 0, 0,47,44,45,46};

char  raspiInfo::R2GPIOPin[32]=         { 0, 0, 3, 5, 7, 0, 0, 0,
                                         24,21,19,23, 0, 0, 8,10,
                                          0,11,12, 0, 0, 0,15,16,
                                         18,22, 0,13,47,44,45,46};

char  raspiInfo::R2PlusGPIOPin[32]=     {    0, 0, 3, 5, 7,29,31,26,
                                            24,21,19,23,32,33, 8,10,
                                            36,11,12,35,38,40,15,16,
                                            18,22,37,13,47,44,45,46};





bool  raspiInfo::ExtractToken(string source, string label,string& value)
{

   size_t  found;


   string  theLabel;


   found = source.find(":");

   if(found == string::npos) return false;

   theLabel = source.substr(0,found);

   if(theLabel.find(label) == string::npos) return false;

   value    = source.substr(found+1);

   return true;
}




raspiInfo::raspiInfo()
{
  size_t pos_S,pos_E;
  unsigned long ltemp;
  string  cmdline,cpuinfo;
  string  string1,string2;
  istringstream ss;
  unsigned char ManufacturerID;

  Model="?";
  Revision = -1;
  SerialNumber=0;
  RamSizeInMB=0;
  IOBase=0;
  Manufacturer="Egoman";
  ProcessorName="";
  ProcessorType=0;
  ProcessorCount=0;
  I2CDevice=1;
  GPIOPin= R2GPIOPin;
  stringstream myss;

  try {
     ifstream  fs("/proc/cpuinfo");

      while(!fs.eof())
        {
             std::getline(fs, string1);

             if(ExtractToken(string1,"model name",string2))

                ProcessorName= string2;

             if(ExtractToken(string1,"processor",string2))
                ProcessorCount++;

             if(ExtractToken(string1,"Revision",string2))
               {
                ss.str(string2);
                ss >> std::hex >> BoardRevision >> std::dec;
                ss.clear();
               }
             if(ExtractToken(string1,"Serial",string2))
               {
                 ss.str(string2);
                 ss >> std::hex >> SerialNumber >> std::dec;
                 ss.clear();
               }
         }

    } catch (exception e) {
     // unkown
     return;
    }

   if(ProcessorCount==0) 
      ProcessorCount=1;


   if(BoardRevision & 0x800000)
     {
       //ok new method
       Revision = BoardRevision & 0xf;
       // display Raspberry Pi type
       unsigned char ModelType = (BoardRevision >> 4) & 0xff;


       switch(ModelType)
        {
          case  0 : Model="A";break;
          case  1 : Model="B";break;
          case  2 : Model="A+";GPIOPin=R2PlusGPIOPin;break;
          case  3 : Model="B+";GPIOPin=R2PlusGPIOPin;break;
          case  4 : Model="Pi 2 B";GPIOPin=R2PlusGPIOPin;break;
          case  5 : Model="Alpha";break;
          case  6 : Model="Compute Module";break;
          case  8 : Model="Pi 3 B"; GPIOPin=R2PlusGPIOPin;break;
          case  9 : Model="Pi Zero";GPIOPin=R2PlusGPIOPin;break;
          case 10 : Model="Compute Module 3";break;
          case  12 : Model="Pi Zero W";GPIOPin=R2PlusGPIOPin;break;
          default:
                   myss << "Unknown type :" << ModelType;
                   Model = myss.str();
        }

      // Ram size in MB
      ltemp = (BoardRevision >> 20 ) & 7;

       switch(ltemp)
       {
          case  0 :  RamSizeInMB = 256;IOBase=PI_IO_BASE;break;
          case  1 :  RamSizeInMB = 512;IOBase=PI_IO_BASE;break;
          case  2 :  RamSizeInMB = 1024;IOBase=PI2_IO_BASE;break;
          default :  RamSizeInMB = 0;IOBase=0;break;
        }
       // processor
       ProcessorType =  (BoardRevision >> 12) & 0xffff;

       // Manufacturer
         ManufacturerID = (BoardRevision >> 16) & 15;
         switch(ManufacturerID)
           {
             case 0: Manufacturer="Sony UK";break;
             case 1: break;
             case 2: Manufacturer="Embest";break;
             case 3: Manufacturer="Sony Japan";break;
             default: Manufacturer="Unknown";
            }
      }
      else
      {
        //old method;
        RamSizeInMB=512;
        Revision = BoardRevision & 0x1f;
        IOBase = PI_IO_BASE;
        switch(Revision)
        {
         case 2:
         case 3: I2CDevice=0;GPIOPin=R1GPIOPin;
         case 4: Model="B";RamSizeInMB=256;break;
         case 5:
         case 6:
         case 0xd:
         case 0xe:
         case 0xf:  Model="B";break;
         case 7:
         case 8:
         case 9:  Model="A";RamSizeInMB=256;break;
         case 0x10: Model="B+";GPIOPin=R2PlusGPIOPin;break;
         case 0x11: Model="Compute Module";break;
         case 0x12: Model="A+";RamSizeInMB=256;GPIOPin=R2PlusGPIOPin;break;
        }
        // ok manufacturer
        switch(Revision)
        {
          case 4:
          case 8:
          case 0xe:
          case 0x10:
          case 0x11:
          case 0x12: Manufacturer="Sony UK";break;
          case 5:
          case 9: Manufacturer="Qisda";break;
          case 0x13:
          case 0x14:
          case 0x15: Manufacturer="Embest";
        }
      }
      // check the existence of device-tree/model
      ifstream fsm("/proc/device-tree/model");
      if(!fsm.fail())
        {
         std::string gotModel;
         std::getline(fsm,gotModel);
         if(!fsm.fail())
          {
           Model=gotModel;
          }
        }
}



#ifdef   __MAIN__

int main(void)
  {
     raspiInfo   MyPi;

     cout << "Raspberry PI Information" << endl;
     cout << "D.J.Perron (c) 2015"     << endl;
     cout << "=======================" << endl;
     cout << "Model          : " << MyPi.Model << endl;
     cout << "cpu            :" << MyPi.ProcessorName << endl;
     cout << "# of  cpu(s)   : " << MyPi.ProcessorCount << endl;
     cout << "S/N            : " << std::hex << MyPi.SerialNumber << endl;
     cout << "Manufacturer   : " << MyPi.Manufacturer << endl;
     cout << "Board Revision : " << std::hex << MyPi.BoardRevision << endl;
     cout << "Revision       : " << std::hex << MyPi.Revision << endl;
     cout << "Ram size (MB)  : " << std::dec << MyPi.RamSizeInMB << endl;
     cout << "I2C(#) On GPIO : i2c(" << std::dec << MyPi.I2CDevice << ")" <<endl;   
     cout << "IO Map address : " << std::hex << MyPi.IOBase << std::dec << endl;
     return 0;
   }

#endif