1 #pragma once
2 /*
3  * This file is part of the libCEC(R) library.
4  *
5  * libCEC(R) is Copyright (C) 2011-2015 Pulse-Eight Limited.  All rights reserved.
6  * libCEC(R) is an original work, containing original code.
7  *
8  * libCEC(R) is a trademark of Pulse-Eight Limited.
9  *
10  * This program is dual-licensed; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23  * 02110-1301  USA
24  *
25  *
26  * Alternatively, you can license this library under a commercial license,
27  * please contact Pulse-Eight Licensing for more information.
28  *
29  * For more information contact:
30  * Pulse-Eight Licensing       <license@pulse-eight.com>
31  *     http://www.pulse-eight.com/
32  *     http://www.pulse-eight.net/
33  */
34 
35 #include "env.h"
36 #include "p8-platform/util/buffer.h"
37 
38 #include <string>
39 #include <stdint.h>
40 
41 #if !defined(__WINDOWS__)
42 #include <termios.h>
43 #endif
44 
45 #include "p8-platform/sockets/socket.h"
46 
47 namespace P8PLATFORM
48 {
49   enum SerialParity
50   {
51     SERIAL_PARITY_NONE = 0,
52     SERIAL_PARITY_EVEN,
53     SERIAL_PARITY_ODD
54   };
55 
56   enum SerialStopBits
57   {
58     SERIAL_STOP_BITS_ONE = 1,
59     SERIAL_STOP_BITS_TWO = 2
60   };
61 
62   enum SerialDataBits
63   {
64     SERIAL_DATA_BITS_FIVE  = 5,
65     SERIAL_DATA_BITS_SIX   = 6,
66     SERIAL_DATA_BITS_SEVEN = 7,
67     SERIAL_DATA_BITS_EIGHT = 8
68   };
69 
70   class CSerialSocket : public CCommonSocket<serial_socket_t>
71   {
72     public:
73       CSerialSocket(const std::string &strName, uint32_t iBaudrate, SerialDataBits iDatabits = SERIAL_DATA_BITS_EIGHT, SerialStopBits iStopbits = SERIAL_STOP_BITS_ONE, SerialParity iParity = SERIAL_PARITY_NONE) :
74           CCommonSocket<serial_socket_t>(INVALID_SERIAL_SOCKET_VALUE, strName),
75           #ifdef __WINDOWS__
76           m_iCurrentReadTimeout(MAXDWORD),
77           #endif
78           m_bIsOpen(false),
79           m_iBaudrate(iBaudrate),
80           m_iDatabits(iDatabits),
81           m_iStopbits(iStopbits),
82           m_iParity(iParity) {}
83 
~CSerialSocket(void)84       virtual ~CSerialSocket(void) { Close(); }
85 
86       virtual bool Open(uint64_t iTimeoutMs = 0);
87       virtual void Close(void);
88       virtual void Shutdown(void);
89       virtual ssize_t Write(void* data, size_t len);
90       virtual ssize_t Read(void* data, size_t len, uint64_t iTimeoutMs = 0);
91 
IsOpen(void)92       virtual bool IsOpen(void)
93       {
94         return m_socket != INVALID_SERIAL_SOCKET_VALUE &&
95             m_bIsOpen;
96       }
97 
98       virtual bool SetBaudRate(uint32_t baudrate);
99 
100     protected:
101   #ifndef __WINDOWS__
102       struct termios  m_options;
103   #else
104       bool SetTimeouts(serial_socket_t socket, int* iError, DWORD iTimeoutMs);
105       DWORD           m_iCurrentReadTimeout;
106   #endif
107 
108       bool            m_bIsOpen;
109       uint32_t        m_iBaudrate;
110       SerialDataBits  m_iDatabits;
111       SerialStopBits  m_iStopbits;
112       SerialParity    m_iParity;
113   };
114 
115   class CSerialPort : public CProtectedSocket<CSerialSocket>
116   {
117   public:
118     CSerialPort(const std::string &strName, uint32_t iBaudrate, SerialDataBits iDatabits = SERIAL_DATA_BITS_EIGHT, SerialStopBits iStopbits = SERIAL_STOP_BITS_ONE, SerialParity iParity = SERIAL_PARITY_NONE) :
119       CProtectedSocket<CSerialSocket> (new CSerialSocket(strName, iBaudrate, iDatabits, iStopbits, iParity)) {}
~CSerialPort(void)120     virtual ~CSerialPort(void) {}
121   };
122 };
123