Commit | Line | Data |
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abbca718 | 1 | /* |
f7febb0e LOK |
2 | * This file is part of the libCEC(R) library. |
3 | * | |
9b53a148 | 4 | * libCEC(R) is Copyright (C) 2011-2012 Pulse-Eight Limited. All rights reserved. |
f7febb0e LOK |
5 | * libCEC(R) is an original work, containing original code. |
6 | * | |
7 | * libCEC(R) is a trademark of Pulse-Eight Limited. | |
8 | * | |
9 | * This program is dual-licensed; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
abbca718 | 12 | * (at your option) any later version. |
f7febb0e LOK |
13 | * |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
22 | * | |
23 | * | |
24 | * Alternatively, you can license this library under a commercial license, | |
25 | * please contact Pulse-Eight Licensing for more information. | |
26 | * | |
27 | * For more information contact: | |
28 | * Pulse-Eight Licensing <license@pulse-eight.com> | |
29 | * http://www.pulse-eight.com/ | |
30 | * http://www.pulse-eight.net/ | |
abbca718 LOK |
31 | */ |
32 | ||
ba65909d | 33 | #include "../os.h" |
abbca718 | 34 | #include <stdio.h> |
abbca718 | 35 | #include <fcntl.h> |
ba65909d LOK |
36 | #include "../sockets/serialport.h" |
37 | #include "../util/baudrate.h" | |
99666519 | 38 | #include "../posix/os-socket.h" |
abbca718 | 39 | |
5458fd77 | 40 | #if defined(__APPLE__) || defined(__FreeBSD__) |
6df2c52f | 41 | #ifndef XCASE |
42 | #define XCASE 0 | |
43 | #endif | |
44 | #ifndef OLCUC | |
45 | #define OLCUC 0 | |
46 | #endif | |
47 | #ifndef IUCLC | |
48 | #define IUCLC 0 | |
49 | #endif | |
f9e70e9f LOK |
50 | #else |
51 | #include <lockdev.h> | |
6df2c52f | 52 | #endif |
f9e70e9f | 53 | |
abbca718 | 54 | using namespace std; |
f00ff009 | 55 | using namespace PLATFORM; |
abbca718 | 56 | |
e7602087 LOK |
57 | inline bool RemoveLock(const char *strDeviceName) |
58 | { | |
59 | #if !defined(__APPLE__) && !defined(__FreeBSD__) | |
60 | return dev_unlock(strDeviceName, 0) == 0; | |
61 | #endif | |
62 | } | |
63 | ||
99666519 | 64 | void CSerialSocket::Close(void) |
abbca718 | 65 | { |
48c1be3c | 66 | if (IsOpen()) |
f9e70e9f | 67 | { |
48c1be3c | 68 | SocketClose(m_socket); |
e7602087 | 69 | RemoveLock(m_strName.c_str()); |
f9e70e9f | 70 | } |
99666519 LOK |
71 | } |
72 | ||
73 | void CSerialSocket::Shutdown(void) | |
74 | { | |
48c1be3c | 75 | if (IsOpen()) |
f9e70e9f | 76 | { |
48c1be3c | 77 | SocketClose(m_socket); |
e7602087 | 78 | RemoveLock(m_strName.c_str()); |
f9e70e9f | 79 | } |
99666519 LOK |
80 | } |
81 | ||
82 | ssize_t CSerialSocket::Write(void* data, size_t len) | |
83 | { | |
48c1be3c | 84 | return IsOpen() ? SocketWrite(m_socket, &m_iError, data, len) : -1; |
99666519 LOK |
85 | } |
86 | ||
87 | ssize_t CSerialSocket::Read(void* data, size_t len, uint64_t iTimeoutMs /* = 0 */) | |
88 | { | |
48c1be3c | 89 | return IsOpen() ? SocketRead(m_socket, &m_iError, data, len, iTimeoutMs) : -1; |
abbca718 LOK |
90 | } |
91 | ||
abbca718 | 92 | //setting all this stuff up is a pain in the ass |
99666519 | 93 | bool CSerialSocket::Open(uint64_t iTimeoutMs /* = 0 */) |
abbca718 | 94 | { |
99666519 | 95 | iTimeoutMs = 0; |
48c1be3c | 96 | if (IsOpen()) |
f9e70e9f LOK |
97 | { |
98 | m_iError = EINVAL; | |
48c1be3c | 99 | return false; |
f9e70e9f | 100 | } |
b1f50952 | 101 | |
99666519 LOK |
102 | if (m_iDatabits != SERIAL_DATA_BITS_FIVE && m_iDatabits != SERIAL_DATA_BITS_SIX && |
103 | m_iDatabits != SERIAL_DATA_BITS_SEVEN && m_iDatabits != SERIAL_DATA_BITS_EIGHT) | |
abbca718 | 104 | { |
ba65909d | 105 | m_strError = "Databits has to be between 5 and 8"; |
f9e70e9f | 106 | m_iError = EINVAL; |
abbca718 LOK |
107 | return false; |
108 | } | |
109 | ||
99666519 | 110 | if (m_iStopbits != SERIAL_STOP_BITS_ONE && m_iStopbits != SERIAL_STOP_BITS_TWO) |
abbca718 | 111 | { |
ba65909d | 112 | m_strError = "Stopbits has to be 1 or 2"; |
f9e70e9f | 113 | m_iError = EINVAL; |
abbca718 LOK |
114 | return false; |
115 | } | |
116 | ||
99666519 | 117 | if (m_iParity != SERIAL_PARITY_NONE && m_iParity != SERIAL_PARITY_EVEN && m_iParity != SERIAL_PARITY_ODD) |
abbca718 | 118 | { |
ba65909d | 119 | m_strError = "Parity has to be none, even or odd"; |
f9e70e9f LOK |
120 | m_iError = EINVAL; |
121 | return false; | |
122 | } | |
123 | ||
124 | #if !defined(__APPLE__) && !defined(__FreeBSD__) | |
e7602087 | 125 | if (dev_lock(m_strName.c_str()) != 0) |
f9e70e9f LOK |
126 | { |
127 | m_strError = "Couldn't lock the serial port"; | |
128 | m_iError = EBUSY; | |
abbca718 LOK |
129 | return false; |
130 | } | |
f9e70e9f | 131 | #endif |
abbca718 | 132 | |
99666519 | 133 | m_socket = open(m_strName.c_str(), O_RDWR | O_NOCTTY | O_NDELAY); |
abbca718 | 134 | |
99666519 | 135 | if (m_socket == INVALID_SERIAL_SOCKET_VALUE) |
abbca718 | 136 | { |
ba65909d | 137 | m_strError = strerror(errno); |
e7602087 | 138 | RemoveLock(m_strName.c_str()); |
abbca718 LOK |
139 | return false; |
140 | } | |
141 | ||
ba65909d | 142 | SocketSetBlocking(m_socket, false); |
abbca718 | 143 | |
99666519 | 144 | if (!SetBaudRate(m_iBaudrate)) |
abbca718 | 145 | return false; |
abbca718 LOK |
146 | |
147 | m_options.c_cflag |= (CLOCAL | CREAD); | |
148 | m_options.c_cflag &= ~HUPCL; | |
149 | ||
150 | m_options.c_cflag &= ~CSIZE; | |
99666519 LOK |
151 | if (m_iDatabits == SERIAL_DATA_BITS_FIVE) m_options.c_cflag |= CS5; |
152 | if (m_iDatabits == SERIAL_DATA_BITS_SIX) m_options.c_cflag |= CS6; | |
153 | if (m_iDatabits == SERIAL_DATA_BITS_SEVEN) m_options.c_cflag |= CS7; | |
154 | if (m_iDatabits == SERIAL_DATA_BITS_EIGHT) m_options.c_cflag |= CS8; | |
abbca718 LOK |
155 | |
156 | m_options.c_cflag &= ~PARENB; | |
99666519 | 157 | if (m_iParity == SERIAL_PARITY_EVEN || m_iParity == SERIAL_PARITY_ODD) |
abbca718 | 158 | m_options.c_cflag |= PARENB; |
99666519 | 159 | if (m_iParity == SERIAL_PARITY_ODD) |
abbca718 LOK |
160 | m_options.c_cflag |= PARODD; |
161 | ||
162 | #ifdef CRTSCTS | |
163 | m_options.c_cflag &= ~CRTSCTS; | |
164 | #elif defined(CNEW_RTSCTS) | |
165 | m_options.c_cflag &= ~CNEW_RTSCTS; | |
166 | #endif | |
167 | ||
99666519 | 168 | if (m_iStopbits == SERIAL_STOP_BITS_ONE) m_options.c_cflag &= ~CSTOPB; |
abbca718 LOK |
169 | else m_options.c_cflag |= CSTOPB; |
170 | ||
171 | //I guessed a little here | |
172 | m_options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG | XCASE | ECHOK | ECHONL | ECHOCTL | ECHOPRT | ECHOKE | TOSTOP); | |
173 | ||
99666519 | 174 | if (m_iParity == SERIAL_PARITY_NONE) |
abbca718 | 175 | m_options.c_iflag &= ~INPCK; |
abbca718 | 176 | else |
abbca718 | 177 | m_options.c_iflag |= INPCK | ISTRIP; |
abbca718 LOK |
178 | |
179 | m_options.c_iflag &= ~(IXON | IXOFF | IXANY | BRKINT | INLCR | IGNCR | ICRNL | IUCLC | IMAXBEL); | |
180 | m_options.c_oflag &= ~(OPOST | ONLCR | OCRNL); | |
181 | ||
ba65909d | 182 | if (tcsetattr(m_socket, TCSANOW, &m_options) != 0) |
abbca718 | 183 | { |
ba65909d | 184 | m_strError = strerror(errno); |
e7602087 | 185 | RemoveLock(m_strName.c_str()); |
abbca718 LOK |
186 | return false; |
187 | } | |
188 | ||
ba65909d | 189 | SocketSetBlocking(m_socket, true); |
99666519 | 190 | m_bIsOpen = true; |
abbca718 LOK |
191 | |
192 | return true; | |
193 | } | |
194 | ||
99666519 | 195 | bool CSerialSocket::SetBaudRate(uint32_t baudrate) |
abbca718 | 196 | { |
b9187cc6 | 197 | int rate = IntToBaudrate(baudrate); |
abbca718 LOK |
198 | if (rate == -1) |
199 | { | |
200 | char buff[255]; | |
201 | sprintf(buff, "%i is not a valid baudrate", baudrate); | |
ba65909d | 202 | m_strError = buff; |
abbca718 LOK |
203 | return false; |
204 | } | |
99666519 | 205 | |
abbca718 | 206 | //get the current port attributes |
ba65909d | 207 | if (tcgetattr(m_socket, &m_options) != 0) |
abbca718 | 208 | { |
ba65909d | 209 | m_strError = strerror(errno); |
abbca718 LOK |
210 | return false; |
211 | } | |
212 | ||
213 | if (cfsetispeed(&m_options, rate) != 0) | |
214 | { | |
ba65909d | 215 | m_strError = strerror(errno); |
abbca718 LOK |
216 | return false; |
217 | } | |
99666519 | 218 | |
abbca718 LOK |
219 | if (cfsetospeed(&m_options, rate) != 0) |
220 | { | |
ba65909d | 221 | m_strError = strerror(errno); |
abbca718 LOK |
222 | return false; |
223 | } | |
224 | ||
225 | return true; | |
226 | } |