Commit | Line | Data |
---|---|---|
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 | ||
2b44051c | 33 | #include "env.h" |
abbca718 | 34 | #include <stdio.h> |
abbca718 | 35 | #include <fcntl.h> |
2b44051c LOK |
36 | #include "lib/platform/sockets/serialport.h" |
37 | #include "lib/platform/util/baudrate.h" | |
38 | #include "lib/platform/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; | |
2b44051c LOK |
61 | #else |
62 | void *tmp = (void*)strDeviceName; // silence unused warning | |
dbe84b6e | 63 | tmp = NULL; |
2b44051c | 64 | return true; |
e7602087 LOK |
65 | #endif |
66 | } | |
67 | ||
99666519 | 68 | void CSerialSocket::Close(void) |
abbca718 | 69 | { |
48c1be3c | 70 | if (IsOpen()) |
f9e70e9f | 71 | { |
48c1be3c | 72 | SocketClose(m_socket); |
e7602087 | 73 | RemoveLock(m_strName.c_str()); |
f9e70e9f | 74 | } |
99666519 LOK |
75 | } |
76 | ||
77 | void CSerialSocket::Shutdown(void) | |
78 | { | |
48c1be3c | 79 | if (IsOpen()) |
f9e70e9f | 80 | { |
48c1be3c | 81 | SocketClose(m_socket); |
e7602087 | 82 | RemoveLock(m_strName.c_str()); |
f9e70e9f | 83 | } |
99666519 LOK |
84 | } |
85 | ||
86 | ssize_t CSerialSocket::Write(void* data, size_t len) | |
87 | { | |
48c1be3c | 88 | return IsOpen() ? SocketWrite(m_socket, &m_iError, data, len) : -1; |
99666519 LOK |
89 | } |
90 | ||
91 | ssize_t CSerialSocket::Read(void* data, size_t len, uint64_t iTimeoutMs /* = 0 */) | |
92 | { | |
48c1be3c | 93 | return IsOpen() ? SocketRead(m_socket, &m_iError, data, len, iTimeoutMs) : -1; |
abbca718 LOK |
94 | } |
95 | ||
abbca718 | 96 | //setting all this stuff up is a pain in the ass |
99666519 | 97 | bool CSerialSocket::Open(uint64_t iTimeoutMs /* = 0 */) |
abbca718 | 98 | { |
dbe84b6e | 99 | iTimeoutMs = 0; if (!iTimeoutMs){} // silence unused warning |
48c1be3c | 100 | if (IsOpen()) |
f9e70e9f LOK |
101 | { |
102 | m_iError = EINVAL; | |
48c1be3c | 103 | return false; |
f9e70e9f | 104 | } |
b1f50952 | 105 | |
99666519 LOK |
106 | if (m_iDatabits != SERIAL_DATA_BITS_FIVE && m_iDatabits != SERIAL_DATA_BITS_SIX && |
107 | m_iDatabits != SERIAL_DATA_BITS_SEVEN && m_iDatabits != SERIAL_DATA_BITS_EIGHT) | |
abbca718 | 108 | { |
ba65909d | 109 | m_strError = "Databits has to be between 5 and 8"; |
f9e70e9f | 110 | m_iError = EINVAL; |
abbca718 LOK |
111 | return false; |
112 | } | |
113 | ||
99666519 | 114 | if (m_iStopbits != SERIAL_STOP_BITS_ONE && m_iStopbits != SERIAL_STOP_BITS_TWO) |
abbca718 | 115 | { |
ba65909d | 116 | m_strError = "Stopbits has to be 1 or 2"; |
f9e70e9f | 117 | m_iError = EINVAL; |
abbca718 LOK |
118 | return false; |
119 | } | |
120 | ||
99666519 | 121 | if (m_iParity != SERIAL_PARITY_NONE && m_iParity != SERIAL_PARITY_EVEN && m_iParity != SERIAL_PARITY_ODD) |
abbca718 | 122 | { |
ba65909d | 123 | m_strError = "Parity has to be none, even or odd"; |
f9e70e9f LOK |
124 | m_iError = EINVAL; |
125 | return false; | |
126 | } | |
127 | ||
128 | #if !defined(__APPLE__) && !defined(__FreeBSD__) | |
e7602087 | 129 | if (dev_lock(m_strName.c_str()) != 0) |
f9e70e9f LOK |
130 | { |
131 | m_strError = "Couldn't lock the serial port"; | |
132 | m_iError = EBUSY; | |
abbca718 LOK |
133 | return false; |
134 | } | |
f9e70e9f | 135 | #endif |
abbca718 | 136 | |
99666519 | 137 | m_socket = open(m_strName.c_str(), O_RDWR | O_NOCTTY | O_NDELAY); |
abbca718 | 138 | |
99666519 | 139 | if (m_socket == INVALID_SERIAL_SOCKET_VALUE) |
abbca718 | 140 | { |
ba65909d | 141 | m_strError = strerror(errno); |
e7602087 | 142 | RemoveLock(m_strName.c_str()); |
abbca718 LOK |
143 | return false; |
144 | } | |
145 | ||
ba65909d | 146 | SocketSetBlocking(m_socket, false); |
abbca718 | 147 | |
99666519 | 148 | if (!SetBaudRate(m_iBaudrate)) |
abbca718 | 149 | return false; |
abbca718 LOK |
150 | |
151 | m_options.c_cflag |= (CLOCAL | CREAD); | |
152 | m_options.c_cflag &= ~HUPCL; | |
153 | ||
154 | m_options.c_cflag &= ~CSIZE; | |
99666519 LOK |
155 | if (m_iDatabits == SERIAL_DATA_BITS_FIVE) m_options.c_cflag |= CS5; |
156 | if (m_iDatabits == SERIAL_DATA_BITS_SIX) m_options.c_cflag |= CS6; | |
157 | if (m_iDatabits == SERIAL_DATA_BITS_SEVEN) m_options.c_cflag |= CS7; | |
158 | if (m_iDatabits == SERIAL_DATA_BITS_EIGHT) m_options.c_cflag |= CS8; | |
abbca718 LOK |
159 | |
160 | m_options.c_cflag &= ~PARENB; | |
99666519 | 161 | if (m_iParity == SERIAL_PARITY_EVEN || m_iParity == SERIAL_PARITY_ODD) |
abbca718 | 162 | m_options.c_cflag |= PARENB; |
99666519 | 163 | if (m_iParity == SERIAL_PARITY_ODD) |
abbca718 LOK |
164 | m_options.c_cflag |= PARODD; |
165 | ||
166 | #ifdef CRTSCTS | |
167 | m_options.c_cflag &= ~CRTSCTS; | |
168 | #elif defined(CNEW_RTSCTS) | |
169 | m_options.c_cflag &= ~CNEW_RTSCTS; | |
170 | #endif | |
171 | ||
99666519 | 172 | if (m_iStopbits == SERIAL_STOP_BITS_ONE) m_options.c_cflag &= ~CSTOPB; |
abbca718 LOK |
173 | else m_options.c_cflag |= CSTOPB; |
174 | ||
175 | //I guessed a little here | |
176 | m_options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG | XCASE | ECHOK | ECHONL | ECHOCTL | ECHOPRT | ECHOKE | TOSTOP); | |
177 | ||
99666519 | 178 | if (m_iParity == SERIAL_PARITY_NONE) |
abbca718 | 179 | m_options.c_iflag &= ~INPCK; |
abbca718 | 180 | else |
abbca718 | 181 | m_options.c_iflag |= INPCK | ISTRIP; |
abbca718 LOK |
182 | |
183 | m_options.c_iflag &= ~(IXON | IXOFF | IXANY | BRKINT | INLCR | IGNCR | ICRNL | IUCLC | IMAXBEL); | |
184 | m_options.c_oflag &= ~(OPOST | ONLCR | OCRNL); | |
185 | ||
ba65909d | 186 | if (tcsetattr(m_socket, TCSANOW, &m_options) != 0) |
abbca718 | 187 | { |
ba65909d | 188 | m_strError = strerror(errno); |
e7602087 | 189 | RemoveLock(m_strName.c_str()); |
abbca718 LOK |
190 | return false; |
191 | } | |
192 | ||
ba65909d | 193 | SocketSetBlocking(m_socket, true); |
99666519 | 194 | m_bIsOpen = true; |
abbca718 LOK |
195 | |
196 | return true; | |
197 | } | |
198 | ||
99666519 | 199 | bool CSerialSocket::SetBaudRate(uint32_t baudrate) |
abbca718 | 200 | { |
b9187cc6 | 201 | int rate = IntToBaudrate(baudrate); |
abbca718 LOK |
202 | if (rate == -1) |
203 | { | |
204 | char buff[255]; | |
205 | sprintf(buff, "%i is not a valid baudrate", baudrate); | |
ba65909d | 206 | m_strError = buff; |
abbca718 LOK |
207 | return false; |
208 | } | |
99666519 | 209 | |
abbca718 | 210 | //get the current port attributes |
ba65909d | 211 | if (tcgetattr(m_socket, &m_options) != 0) |
abbca718 | 212 | { |
ba65909d | 213 | m_strError = strerror(errno); |
abbca718 LOK |
214 | return false; |
215 | } | |
216 | ||
217 | if (cfsetispeed(&m_options, rate) != 0) | |
218 | { | |
ba65909d | 219 | m_strError = strerror(errno); |
abbca718 LOK |
220 | return false; |
221 | } | |
99666519 | 222 | |
abbca718 LOK |
223 | if (cfsetospeed(&m_options, rate) != 0) |
224 | { | |
ba65909d | 225 | m_strError = strerror(errno); |
abbca718 LOK |
226 | return false; |
227 | } | |
228 | ||
229 | return true; | |
230 | } |