//---------------------------------------------------------------------------
// Copyright (C) 2000 Dallas Semiconductor Corporation, All Rights Reserved.
//
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// Software is furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included
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// OTHER DEALINGS IN THE SOFTWARE.
//
// Except as contained in this notice, the name of Dallas Semiconductor
// shall not be used except as stated in the Dallas Semiconductor
// Branding Policy.
//---------------------------------------------------------------------------
//
//  counter.c - Application to read the 1-Wire Net DS2423 - counter.
//
//             This application uses the files from the 'Public Domain'
//             1-Wire Net libraries ('general' and 'userial').
//
//  Version: 2.00
//

#include <stdio.h>
#include <stdlib.h>
#include "ownet.h"

// defines
#define MAXDEVICES           20

// family codes of devices
#define COUNT_FAMILY       0x1D

// external One Wire functions defined in network layer
extern void     owSerialNum(int,uchar *,SMALLINT);
extern SMALLINT owVerify(int,SMALLINT);

// external One Wire functions
extern SMALLINT owAcquire(int,char *);
extern void     owRelease(int);

// external One Wire functions defined in findtype.c
extern SMALLINT FindDevices(int,uchar FamilySN[][8],SMALLINT,int);

// external functions
extern int ReadCounter(int,uchar *,int,ulong *);
extern int  key_abort(void);
extern void PrintSerialNum(uchar *);

// global serial numbers
uchar FamilySN[MAXDEVICES][8];

//----------------------------------------------------------------------
//  Main Test for the DS2423 - counter
//
int main(int argc, char **argv)
{
   int NumDevices=0;
   int i;
   int CounterPage;
   ulong Count;
   int portnum=0;

   //------------------------------------------------------
   // Introduction header
   printf("\n/---------------------------------------------\n");
   printf("  Counter Application - V2.00\n"
          "  The following is a test to excersize a\n"
          "  DS2423 - counter \n\n");

   printf("  Press any CTRL-C to stop this program.\n\n");
   printf("  Output   [Serial Number(s) ... Counter Value ... Counter Value ... "
                         "Counter Value ... Counter Value] \n\n");

   // check for required port name
   if (argc != 2)
   {
      printf("1-Wire Net name required on command line!\n"
             " (example: \"COM1\" (Win32 DS2480),\"/dev/cua0\" "
             "(Linux DS2480),\"1\" (Win32 TMEX)\n");
      exit(1);
   }

   // attempt to acquire the 1-Wire Net
   if (!owAcquire(portnum,argv[1]))
   {
      OWERROR_DUMP(stdout);
      exit(1);
   }

   // success
   printf("Port opened: %s\n",argv[1]);

   // Find the device(s)
   NumDevices = FindDevices(portnum, &FamilySN[0], 0x1D, MAXDEVICES);
   if (NumDevices>0)
   {
      printf("\n");
      printf("Device(s) Found: \n");
      for (i = 0; i < NumDevices; i++)
      {
         PrintSerialNum(FamilySN[i]);
         printf("\n");
      }
      printf("\n\n");

      // (stops on CTRL-C)
      do
      {
         // read the current counters
         for (i = 0; i < NumDevices; i++)
         {
            printf("\n");
            PrintSerialNum(FamilySN[i]);

            for (CounterPage = 12; CounterPage <= 15; CounterPage++)
            {
               if (ReadCounter(portnum, FamilySN[i], CounterPage, &Count))
               {
                   printf(" %10ld  ", Count);
               }
               else
                  printf("\nError reading counter, verify device present:%d\n",
                  (int)owVerify(portnum,FALSE));
            }
         }
         printf("\n\n");
      }
      while (!key_abort());
   }
   else
      printf("\n\n\n ERROR, device not found!\n");

   // release the 1-Wire Net
   owRelease(portnum);
   printf("Closing port %s.\n", argv[1]);
   exit(0);

   return 0;
}