Diff: findtype.cpp

Revision:

0:1193dbfe28e2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/findtype.cpp	Thu Mar 24 17:21:29 2011 +0000
@@ -0,0 +1,78 @@
+//---------------------------------------------------------------------------
+// Copyright (C) 2000 Dallas Semiconductor Corporation, All Rights Reserved.
+//
+// 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 DALLAS SEMICONDUCTOR 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.
+//
+// Except as contained in this notice, the name of Dallas Semiconductor
+// shall not be used except as stated in the Dallas Semiconductor
+// Branding Policy.
+//---------------------------------------------------------------------------
+//
+//  findtype.c - Test module to find all devices of one type.
+//
+//  Version: 2.00
+//
+//----------------------------------------------------------------------
+//
+//
+#include "ownet.h"
+#include "./Headers/findtype.h"
+
+//----------------------------------------------------------------------
+// Search for devices
+//
+// 'portnum'  - number 0 to MAX_PORTNUM-1.  This number is provided to
+//              indicate the symbolic port number.
+// 'FamilySN' - an array of all the serial numbers with the matching
+//              family code
+// 'family_code' - the family code of the devices to search for on the
+//                 1-Wire Net
+// 'MAXDEVICES'  - the maximum number of devices to look for with the
+//                 family code passed.
+//
+// Returns: TRUE(1)  success, device type found
+//          FALSE(0) device not found
+//
+SMALLINT FindDevices(int portnum, uchar FamilySN[][8], SMALLINT family_code, int MAXDEVICES)
+{
+   int NumDevices=0;
+
+   // find the devices
+   // set the search to first find that family code
+   owFamilySearchSetup(portnum,family_code);
+
+   // loop to find all of the devices up to MAXDEVICES
+   NumDevices = 0;
+   do
+   {
+      // perform the search
+      if (!owNext(portnum,TRUE, FALSE))
+         break;
+
+      owSerialNum(portnum,FamilySN[NumDevices], TRUE);
+      if ((FamilySN[NumDevices][0] & 0x7F) == (family_code & 0x7F))
+      {
+         NumDevices++;
+      }
+   }
+   while (NumDevices < (MAXDEVICES - 1));
+
+   // check if not at least 1 device
+   return NumDevices;
+}