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