Open Lighting Architecture  0.9.2
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UartDmxThread.h
1 /*
2  * This program is free software; you can redistribute it and/or modify
3  * it under the terms of the GNU General Public License as published by
4  * the Free Software Foundation; either version 2 of the License, or
5  * (at your option) any later version.
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10  * GNU Library General Public License for more details.
11  *
12  * You should have received a copy of the GNU General Public License
13  * along with this program; if not, write to the Free Software
14  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
15  *
16  * DmxThread.h
17  * The DMX through a UART plugin for ola
18  * Copyright (C) 2011 Rui Barreiros
19  * Copyright (C) 2014 Richard Ash
20  */
21 
22 #ifndef PLUGINS_UARTDMX_UARTDMXTHREAD_H_
23 #define PLUGINS_UARTDMX_UARTDMXTHREAD_H_
24 
25 #include "ola/DmxBuffer.h"
26 #include "ola/thread/Thread.h"
27 
28 namespace ola {
29 namespace plugin {
30 namespace uartdmx {
31 
33  public:
34  UartDmxThread(UartWidget *widget, unsigned int breakt, unsigned int malft);
35  ~UartDmxThread();
36 
37  bool Stop();
38  void *Run();
39  bool WriteDMX(const DmxBuffer &buffer);
40 
41  private:
42  enum TimerGranularity { UNKNOWN, GOOD, BAD };
43 
44  TimerGranularity m_granularity;
45  UartWidget *m_widget;
46  bool m_term;
47  int unsigned m_breakt;
48  int unsigned m_malft;
49  DmxBuffer m_buffer;
50  ola::thread::Mutex m_term_mutex;
51  ola::thread::Mutex m_buffer_mutex;
52 
53  void CheckTimeGranularity();
54 
55  static const uint32_t DMX_MAB = 16;
56 
57  DISALLOW_COPY_AND_ASSIGN(UartDmxThread);
58 };
59 } // namespace uartdmx
60 } // namespace plugin
61 } // namespace ola
62 #endif // PLUGINS_UARTDMX_UARTDMXTHREAD_H_