eibd/backend/bcu1.h

   1 /*
   2     EIBD eib bus access and management daemon
   3     Copyright (C) 2005-2011 Martin Koegler <mkoegler@auto.tuwien.ac.at>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #ifndef EIB_BCU1_H
  21 #define EIB_BCU1_H
  22
  23 #include "lowlevel.h"
  24
  25 /** PEI16 / BCU1 kernel driver backend */
  26 class BCU1DriverLowLevelDriver:public LowLevelDriverInterface, private Thread
  27 {
  28   /** file descriptor */
  29   int fd;
  30   /** debug output */
  31   Trace *t;
  32   /** semaphore for inqueue */
  33   pth_sem_t in_signal;
  34   /** semaphore for outqueue */
  35   pth_sem_t out_signal;
  36   /** input queue */
  37     Queue < CArray > inqueue;
  38     /** output queue */
  39     Queue < CArray * >outqueue;
  40     /** event to wait for outqueue */
  41   pth_event_t getwait;
  42   /** semaphore to signal empty sendqueue */
  43   pth_sem_t send_empty;
  44     /** event to wait for send finished */
  45   pth_event_t send_done;
  46
  47   void Run (pth_sem_t * stop);
  48 public:
  49     BCU1DriverLowLevelDriver (const char *device, Trace * tr);
  50    ~BCU1DriverLowLevelDriver ();
  51   bool init ();
  52
  53   void Send_Packet (CArray l);
  54   bool Send_Queue_Empty ();
  55   pth_sem_t *Send_Queue_Empty_Cond ();
  56   CArray *Get_Packet (pth_event_t stop);
  57   void SendReset ();
  58   bool Connection_Lost ();
  59   EMIVer getEMIVer ();
  60 };
  61
  62
  63 #endif