source/libmarklin/turnout.cpp

   1 /* $Id$
   2
   3 This file is part of the MSP Märklin suite
   4 Copyright © 2006-2009 Mikkosoft Productions, Mikko Rasa
   5 Distributed under the GPL
   6 */
   7
   8 #include <msp/time/timer.h>
   9 #include <msp/time/units.h>
  10 #include "command.h"
  11 #include "control.h"
  12 #include "reply.h"
  13 #include "turnout.h"
  14
  15 using namespace std;
  16 using namespace Msp;
  17
  18 namespace Marklin {
  19
  20 Turnout::Turnout(Control &c, unsigned a, bool d):
  21         control(c),
  22         addr(a),
  23         route(0),
  24         dual(d)
  25 {
  26         control.add_turnout(*this);
  27
  28         control.signal_turnout_event.connect(sigc::mem_fun(this, &Turnout::turnout_event));
  29
  30         unsigned char data[2];
  31         data[0]=addr&0xFF;
  32         data[1]=(addr>>8)&0xFF;
  33         control.command(CMD_TURNOUT_STATUS, data, 2).signal_done.connect(sigc::bind(sigc::mem_fun(this, &Turnout::status_reply), false));
  34         if(dual)
  35         {
  36                 data[0]=(addr+1)&0xFF;
  37                 data[1]=((addr+1)>>8)&0xFF;
  38                 control.command(CMD_TURNOUT_STATUS, data, 2).signal_done.connect(sigc::bind(sigc::mem_fun(this, &Turnout::status_reply), true));
  39         }
  40 }
  41
  42 void Turnout::set_route(unsigned r)
  43 {
  44         route=r;
  45
  46         command(true);
  47         control.set_timer(200*Time::msec).signal_timeout.connect(sigc::mem_fun(this, &Turnout::switch_timeout));
  48
  49         signal_route_changed.emit(route);
  50 }
  51
  52 void Turnout::command(bool on)
  53 {
  54         unsigned char data[2];
  55         data[0]=addr&0xFF;
  56         data[1]=((addr>>8)&0x7) | (on ? 0x40 : 0) | (route&1 ? 0 : 0x80);
  57         control.command(CMD_TURNOUT, data, 2);
  58         if(dual)
  59         {
  60                 data[0]=(addr+1)&0xFF;
  61                 data[1]=(((addr+1)>>8)&0x7) | (on ? 0x40 : 0) | (route&2 ? 0 : 0x80);
  62                 control.command(CMD_TURNOUT, data, 2);
  63         }
  64 }
  65
  66 void Turnout::status_reply(const Reply &reply, bool high)
  67 {
  68         if(reply.get_error()==ERR_NO_ERROR)
  69         {
  70                 bool v=!(reply.get_data()[0]&0x04);
  71                 unsigned b=(high?2:1);
  72                 route=(route&~b)|(v?b:0);
  73                 signal_route_changed.emit(route);
  74         }
  75 }
  76
  77 bool Turnout::switch_timeout()
  78 {
  79         command(false);
  80
  81         return false;
  82 }
  83
  84 void Turnout::turnout_event(unsigned a, bool r)
  85 {
  86         if(a==addr && r!=(route&1))
  87         {
  88                 route=(route&2)|(r?1:0);
  89                 signal_route_changed.emit(route);
  90         }
  91         else if(dual && a==addr+1 && r!=((route>>1)&1))
  92         {
  93                 route=(route&1)|(r?2:0);
  94                 signal_route_changed.emit(route);
  95         }
  96 }
  97
  98 } // namespace Marklin