1 files changed, 102 insertions, 0 deletions
diff --git a/src/pmdas/roomtemp/mlan/mlansesu.c b/src/pmdas/roomtemp/mlan/mlansesu.c
new file mode 100644
index 0000000..b46c349
--- /dev/null
+++ b/src/pmdas/roomtemp/mlan/mlansesu.c
@@ -0,0 +1,102 @@
+//---------------------------------------------------------------------------
+// Copyright (C) 1999 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. 
+//---------------------------------------------------------------------------
+//
+//  MLanSesU.C - Aquire and release a Session on the 1-Wire Net.
+//
+//  Version: 1.03
+//
+
+#include "pmapi.h"
+#include "mlan.h"
+
+// external function prototypes
+extern int  OpenCOM(char *);
+extern void CloseCOM(void);
+extern int  DS2480Detect(void);
+
+// local function prototypes
+int  Aquire1WireNet(char *, char *);
+void Release1WireNet(char *);
+
+// keep port name for later message when closing
+char portname[128];
+
+// debugging
+int MLanDebug = 0;
+
+//---------------------------------------------------------------------------
+// Attempt to aquire a 1-Wire net using a com port and a DS2480 based
+// adapter.  
+//
+// 'port_zstr'  - zero terminated port name.  For this platform
+//                use format COMX where X is the port number.
+// 'return_msg' - zero terminated return message. 
+//
+// Returns: TRUE - success, COM port opened
+//
+int Aquire1WireNet(char *port_zstr, char *return_msg)
+{
+   int cnt=0;
+   portname[0] = 0;
+
+   // attempt to open the communications port
+   if (OpenCOM(port_zstr) >= 0)
+      cnt += sprintf(&return_msg[cnt],"%s opened\n",port_zstr);
+   else
+   {
+      cnt += sprintf(&return_msg[cnt],"Could not open port %s: %s,"
+              " aborting.\nClosing port %s.\n",port_zstr,osstrerror(),port_zstr);
+      return FALSE;
+   }
+
+   // detect DS2480
+   if (DS2480Detect())
+      cnt += sprintf(&return_msg[cnt],"DS2480-based adapter detected\n");
+   else
+   {
+      cnt += sprintf(&return_msg[cnt],"DS2480-based adapter not detected, aborting program\n");
+      cnt += sprintf(&return_msg[cnt],"Closing port %s.\n",port_zstr);
+      CloseCOM();
+      return FALSE;
+   }      
+
+   // success
+   sprintf(portname,"%s",port_zstr);
+   return TRUE;
+}
+
+
+//---------------------------------------------------------------------------
+// Release the previously aquired a 1-Wire net.
+//
+// 'return_msg' - zero terminated return message. 
+//
+void Release1WireNet(char *return_msg)
+{
+   // close the communications port
+   sprintf(return_msg,"Closing port %s.\n",portname);
+   CloseCOM();
+}