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1 | /* |
2 | * This file is part of the libCEC(R) library. | |
3 | * | |
4 | * libCEC(R) is Copyright (C) 2011 Pulse-Eight Limited. All rights reserved. | |
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 | |
12 | * (at your option) any later version. | |
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/ | |
31 | */ | |
32 | ||
33 | #include "LibCEC.h" | |
34 | ||
35 | #include "AdapterCommunication.h" | |
36 | #include "AdapterDetection.h" | |
37 | #include "CECProcessor.h" | |
38 | #include "util/StdString.h" | |
39 | #include "util/timeutils.h" | |
40 | ||
41 | using namespace std; | |
42 | using namespace CEC; | |
43 | ||
44 | CLibCEC::CLibCEC(const char *strDeviceName, cec_logical_address iLogicalAddress /* = CECDEVICE_PLAYBACKDEVICE1 */, int iPhysicalAddress /* = CEC_DEFAULT_PHYSICAL_ADDRESS */) : | |
45 | m_iCurrentButton(CEC_USER_CONTROL_CODE_UNKNOWN), | |
46 | m_buttontime(0) | |
47 | { | |
48 | m_comm = new CAdapterCommunication(this); | |
49 | m_cec = new CCECProcessor(this, m_comm, strDeviceName, iLogicalAddress, iPhysicalAddress); | |
50 | } | |
51 | ||
52 | CLibCEC::~CLibCEC(void) | |
53 | { | |
54 | delete m_cec; | |
55 | m_cec = NULL; | |
56 | ||
57 | delete m_comm; | |
58 | m_comm = NULL; | |
59 | } | |
60 | ||
61 | bool CLibCEC::Open(const char *strPort, int iTimeoutMs /* = 10000 */) | |
62 | { | |
63 | if (!m_comm) | |
64 | return false; | |
65 | ||
66 | if (m_comm->IsOpen()) | |
67 | { | |
68 | AddLog(CEC_LOG_ERROR, "connection already open"); | |
69 | return false; | |
70 | } | |
71 | ||
72 | if (!m_comm->Open(strPort, 38400, iTimeoutMs)) | |
73 | { | |
74 | AddLog(CEC_LOG_ERROR, "could not open a connection"); | |
75 | return false; | |
76 | } | |
77 | ||
78 | if (!m_cec->Start()) | |
79 | { | |
80 | AddLog(CEC_LOG_ERROR, "could not start CEC communications"); | |
81 | return false; | |
82 | } | |
83 | ||
84 | return true; | |
85 | } | |
86 | ||
87 | void CLibCEC::Close(void) | |
88 | { | |
89 | if (m_cec) | |
90 | m_cec->StopThread(); | |
91 | if (m_comm) | |
92 | m_comm->Close(); | |
93 | } | |
94 | ||
95 | int CLibCEC::FindAdapters(std::vector<cec_adapter> &deviceList, const char *strDevicePath /* = NULL */) | |
96 | { | |
97 | CStdString strDebug; | |
98 | if (strDevicePath) | |
99 | strDebug.Format("trying to autodetect the com port for device path '%s'", strDevicePath); | |
100 | else | |
101 | strDebug.Format("trying to autodetect all CEC adapters"); | |
102 | AddLog(CEC_LOG_DEBUG, strDebug); | |
103 | ||
104 | return CAdapterDetection::FindAdapters(deviceList, strDevicePath); | |
105 | } | |
106 | ||
107 | bool CLibCEC::PingAdapter(void) | |
108 | { | |
109 | return m_comm ? m_comm->PingAdapter() : false; | |
110 | } | |
111 | ||
112 | bool CLibCEC::StartBootloader(void) | |
113 | { | |
114 | return m_comm ? m_comm->StartBootloader() : false; | |
115 | } | |
116 | ||
117 | int CLibCEC::GetMinVersion(void) | |
118 | { | |
119 | return CEC_MIN_VERSION; | |
120 | } | |
121 | ||
122 | int CLibCEC::GetLibVersion(void) | |
123 | { | |
124 | return CEC_LIB_VERSION; | |
125 | } | |
126 | ||
127 | bool CLibCEC::GetNextLogMessage(cec_log_message *message) | |
128 | { | |
129 | return m_logBuffer.Pop(*message); | |
130 | } | |
131 | ||
132 | bool CLibCEC::GetNextKeypress(cec_keypress *key) | |
133 | { | |
134 | return m_keyBuffer.Pop(*key); | |
135 | } | |
136 | ||
137 | bool CLibCEC::GetNextCommand(cec_command *command) | |
138 | { | |
139 | return m_commandBuffer.Pop(*command); | |
140 | } | |
141 | ||
142 | bool CLibCEC::Transmit(const cec_frame &data, bool bWaitForAck /* = true */) | |
143 | { | |
144 | return m_cec ? m_cec->Transmit(data, bWaitForAck) : false; | |
145 | } | |
146 | ||
147 | bool CLibCEC::SetLogicalAddress(cec_logical_address iLogicalAddress) | |
148 | { | |
149 | return m_cec ? m_cec->SetLogicalAddress(iLogicalAddress) : false; | |
150 | } | |
151 | ||
152 | bool CLibCEC::PowerOnDevices(cec_logical_address address /* = CECDEVICE_TV */) | |
153 | { | |
154 | return m_cec ? m_cec->PowerOnDevices(address) : false; | |
155 | } | |
156 | ||
157 | bool CLibCEC::StandbyDevices(cec_logical_address address /* = CECDEVICE_BROADCAST */) | |
158 | { | |
159 | return m_cec ? m_cec->StandbyDevices(address) : false; | |
160 | } | |
161 | ||
162 | bool CLibCEC::SetActiveView(void) | |
163 | { | |
164 | return m_cec ? m_cec->SetActiveView() : false; | |
165 | } | |
166 | ||
167 | bool CLibCEC::SetInactiveView(void) | |
168 | { | |
169 | return m_cec ? m_cec->SetInactiveView() : false; | |
170 | } | |
171 | ||
172 | void CLibCEC::AddLog(cec_log_level level, const string &strMessage) | |
173 | { | |
174 | cec_log_message message; | |
175 | message.level = level; | |
176 | message.message.assign(strMessage.c_str()); | |
177 | m_logBuffer.Push(message); | |
178 | } | |
179 | ||
180 | void CLibCEC::AddKey(void) | |
181 | { | |
182 | if (m_iCurrentButton != CEC_USER_CONTROL_CODE_UNKNOWN) | |
183 | { | |
184 | cec_keypress key; | |
185 | key.duration = (unsigned int) (GetTimeMs() - m_buttontime); | |
186 | key.keycode = m_iCurrentButton; | |
187 | m_keyBuffer.Push(key); | |
188 | m_iCurrentButton = CEC_USER_CONTROL_CODE_UNKNOWN; | |
189 | m_buttontime = 0; | |
190 | } | |
191 | } | |
192 | ||
193 | void CLibCEC::AddCommand(cec_logical_address source, cec_logical_address destination, cec_opcode opcode, cec_frame *parameters) | |
194 | { | |
195 | cec_command command; | |
196 | command.source = source; | |
197 | command.destination = destination; | |
198 | command.opcode = opcode; | |
199 | if (parameters) | |
200 | command.parameters = *parameters; | |
201 | if (m_commandBuffer.Push(command)) | |
202 | { | |
203 | CStdString strDebug; | |
204 | strDebug.Format("stored command '%d' in the command buffer. buffer size = %d", opcode, m_commandBuffer.Size()); | |
205 | AddLog(CEC_LOG_DEBUG, strDebug); | |
206 | } | |
207 | else | |
208 | { | |
209 | AddLog(CEC_LOG_WARNING, "command buffer is full"); | |
210 | } | |
211 | } | |
212 | ||
213 | void CLibCEC::CheckKeypressTimeout(void) | |
214 | { | |
215 | if (m_iCurrentButton != CEC_USER_CONTROL_CODE_UNKNOWN && GetTimeMs() - m_buttontime > CEC_BUTTON_TIMEOUT) | |
216 | { | |
217 | AddKey(); | |
218 | m_iCurrentButton = CEC_USER_CONTROL_CODE_UNKNOWN; | |
219 | } | |
220 | } | |
221 | ||
222 | void CLibCEC::SetCurrentButton(cec_user_control_code iButtonCode) | |
223 | { | |
224 | m_iCurrentButton = iButtonCode; | |
225 | m_buttontime = GetTimeMs(); | |
226 | } | |
227 | ||
228 | DECLSPEC void * CECCreate(const char *strDeviceName, CEC::cec_logical_address iLogicalAddress /*= CEC::CECDEVICE_PLAYBACKDEVICE1 */, int iPhysicalAddress /* = CEC_DEFAULT_PHYSICAL_ADDRESS */) | |
229 | { | |
230 | return static_cast< void* > (new CLibCEC(strDeviceName, iLogicalAddress, iPhysicalAddress)); | |
231 | } |