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29104708 LOK |
1 | /* |
2 | * This file is part of the libCEC(R) library. | |
3 | * | |
4 | * libCEC(R) is Copyright (C) 2011-2012 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 "env.h" | |
34 | ||
35 | #if defined(HAVE_RPI_API) | |
36 | #include "RPiCECAdapterCommunication.h" | |
37 | ||
38 | extern "C" { | |
39 | #include <bcm_host.h> | |
40 | } | |
41 | ||
42 | #include "lib/CECTypeUtils.h" | |
43 | #include "lib/LibCEC.h" | |
44 | #include "lib/platform/util/StdString.h" | |
45 | #include "RPiCECAdapterMessageQueue.h" | |
46 | ||
47 | using namespace CEC; | |
48 | using namespace PLATFORM; | |
49 | ||
50 | #define LIB_CEC m_callback->GetLib() | |
51 | ||
52 | static bool g_bHostInited = false; | |
53 | ||
54 | // callback for the RPi CEC service | |
55 | void rpi_cec_callback(void *callback_data, uint32_t p0, uint32_t p1, uint32_t p2, uint32_t p3, uint32_t p4) | |
56 | { | |
57 | if (callback_data) | |
58 | static_cast<CRPiCECAdapterCommunication *>(callback_data)->OnDataReceived(p0, p1, p2, p3, p4); | |
59 | } | |
60 | ||
f60ee8b3 LOK |
61 | CRPiCECAdapterFindNewLogicalAddress::CRPiCECAdapterFindNewLogicalAddress(CRPiCECAdapterCommunication* communication, const cec_logical_address address) : |
62 | m_communication(communication), | |
63 | m_address(address) { } | |
64 | ||
65 | void *CRPiCECAdapterFindNewLogicalAddress::Process(void) | |
66 | { | |
67 | cec_logical_address newAddress(CECDEVICE_UNKNOWN); | |
68 | for (unsigned int iLA = CECDEVICE_RECORDINGDEVICE1; newAddress == CECDEVICE_UNKNOWN && iLA < CECDEVICE_BROADCAST; iLA++) | |
69 | { | |
70 | if (CCECTypeUtils::GetType((cec_logical_address)iLA) == CCECTypeUtils::GetType(m_address) && | |
71 | m_communication->SupportsSourceLogicalAddress((cec_logical_address)iLA) && | |
72 | m_communication->RegisterLogicalAddress((cec_logical_address)iLA)) | |
73 | newAddress = (cec_logical_address)iLA; | |
74 | } | |
75 | ||
76 | m_communication->m_callback->HandleLogicalAddressLost(m_address, newAddress); | |
77 | return NULL; | |
78 | } | |
79 | ||
29104708 LOK |
80 | CRPiCECAdapterCommunication::CRPiCECAdapterCommunication(IAdapterCommunicationCallback *callback) : |
81 | IAdapterCommunication(callback), | |
82 | m_logicalAddress(CECDEVICE_UNKNOWN), | |
f60ee8b3 LOK |
83 | m_bLogicalAddressChanged(false), |
84 | m_laLost(NULL) | |
29104708 LOK |
85 | { |
86 | m_queue = new CRPiCECAdapterMessageQueue(this); | |
87 | } | |
88 | ||
89 | CRPiCECAdapterCommunication::~CRPiCECAdapterCommunication(void) | |
90 | { | |
f60ee8b3 LOK |
91 | if (m_laLost) |
92 | { | |
93 | m_laLost->StopThread(); | |
94 | delete m_laLost; | |
95 | m_laLost = NULL; | |
96 | } | |
29104708 LOK |
97 | delete(m_queue); |
98 | Close(); | |
99 | } | |
100 | ||
101 | const char *ToString(const VC_CEC_ERROR_T error) | |
102 | { | |
103 | switch(error) | |
104 | { | |
105 | case VC_CEC_SUCCESS: | |
106 | return "success"; | |
107 | case VC_CEC_ERROR_NO_ACK: | |
108 | return "no ack"; | |
109 | case VC_CEC_ERROR_SHUTDOWN: | |
110 | return "shutdown"; | |
111 | case VC_CEC_ERROR_BUSY: | |
112 | return "device is busy"; | |
113 | case VC_CEC_ERROR_NO_LA: | |
114 | return "no logical address"; | |
115 | case VC_CEC_ERROR_NO_PA: | |
116 | return "no physical address"; | |
117 | case VC_CEC_ERROR_NO_TOPO: | |
118 | return "no topology"; | |
119 | case VC_CEC_ERROR_INVALID_FOLLOWER: | |
120 | return "invalid follower"; | |
121 | case VC_CEC_ERROR_INVALID_ARGUMENT: | |
122 | return "invalid arg"; | |
123 | default: | |
124 | return "unknown"; | |
125 | } | |
126 | } | |
127 | ||
128 | bool CRPiCECAdapterCommunication::IsInitialised(void) | |
129 | { | |
130 | CLockObject lock(m_mutex); | |
131 | return m_bInitialised; | |
132 | } | |
133 | ||
134 | void CRPiCECAdapterCommunication::OnDataReceived(uint32_t header, uint32_t p0, uint32_t p1, uint32_t p2, uint32_t p3) | |
135 | { | |
136 | VC_CEC_NOTIFY_T reason = (VC_CEC_NOTIFY_T)CEC_CB_REASON(header); | |
137 | ||
138 | LIB_CEC->AddLog(CEC_LOG_DEBUG, "received data: header:%08X p0:%08X p1:%08X p2:%08X p3:%08X reason:%x", header, p0, p1, p2, p3, reason); | |
139 | ||
140 | switch (reason) | |
141 | { | |
142 | case VC_CEC_RX: | |
143 | // CEC data received | |
144 | { | |
145 | // translate into a VC_CEC_MESSAGE_T | |
146 | VC_CEC_MESSAGE_T message; | |
147 | vc_cec_param2message(header, p0, p1, p2, p3, &message); | |
148 | ||
149 | // translate to a cec_command | |
150 | cec_command command; | |
151 | cec_command::Format(command, | |
152 | (cec_logical_address)message.initiator, | |
153 | (cec_logical_address)message.follower, | |
154 | (cec_opcode)CEC_CB_OPCODE(p0)); | |
155 | ||
156 | // copy parameters | |
157 | for (uint8_t iPtr = 1; iPtr < message.length; iPtr++) | |
158 | command.PushBack(message.payload[iPtr]); | |
159 | ||
160 | // send to libCEC | |
161 | m_callback->OnCommandReceived(command); | |
162 | } | |
163 | break; | |
164 | case VC_CEC_TX: | |
165 | { | |
166 | // handle response to a command that was sent earlier | |
167 | m_queue->MessageReceived((cec_opcode)CEC_CB_OPCODE(p0), (cec_logical_address)CEC_CB_INITIATOR(p0), (cec_logical_address)CEC_CB_FOLLOWER(p0), CEC_CB_RC(header)); | |
168 | } | |
169 | break; | |
170 | case VC_CEC_BUTTON_PRESSED: | |
3b106c7d | 171 | case VC_CEC_REMOTE_PRESSED: |
29104708 LOK |
172 | { |
173 | // translate into a cec_command | |
174 | cec_command command; | |
3b106c7d LOK |
175 | cec_command::Format(command, |
176 | (cec_logical_address)CEC_CB_INITIATOR(p0), | |
177 | (cec_logical_address)CEC_CB_FOLLOWER(p0), | |
178 | reason == VC_CEC_BUTTON_PRESSED ? CEC_OPCODE_USER_CONTROL_PRESSED : CEC_OPCODE_VENDOR_REMOTE_BUTTON_DOWN); | |
29104708 LOK |
179 | command.parameters.PushBack((uint8_t)CEC_CB_OPERAND1(p0)); |
180 | ||
181 | // send to libCEC | |
182 | m_callback->OnCommandReceived(command); | |
183 | } | |
184 | break; | |
185 | case VC_CEC_BUTTON_RELEASE: | |
3b106c7d | 186 | case VC_CEC_REMOTE_RELEASE: |
29104708 LOK |
187 | { |
188 | // translate into a cec_command | |
189 | cec_command command; | |
3b106c7d LOK |
190 | cec_command::Format(command, |
191 | (cec_logical_address)CEC_CB_INITIATOR(p0), | |
192 | (cec_logical_address)CEC_CB_FOLLOWER(p0), | |
193 | reason == VC_CEC_BUTTON_PRESSED ? CEC_OPCODE_USER_CONTROL_RELEASE : CEC_OPCODE_VENDOR_REMOTE_BUTTON_UP); | |
29104708 LOK |
194 | command.parameters.PushBack((uint8_t)CEC_CB_OPERAND1(p0)); |
195 | ||
196 | // send to libCEC | |
197 | m_callback->OnCommandReceived(command); | |
198 | } | |
199 | break; | |
200 | case VC_CEC_LOGICAL_ADDR: | |
201 | { | |
202 | CLockObject lock(m_mutex); | |
203 | if (CEC_CB_RC(header) == VCHIQ_SUCCESS) | |
204 | { | |
205 | m_bLogicalAddressChanged = true; | |
206 | m_logicalAddress = (cec_logical_address)(p0 & 0xF); | |
207 | LIB_CEC->AddLog(CEC_LOG_DEBUG, "logical address changed to %s (%x)", LIB_CEC->ToString(m_logicalAddress), m_logicalAddress); | |
208 | } | |
209 | else | |
210 | { | |
211 | m_logicalAddress = CECDEVICE_BROADCAST; | |
212 | LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to change the logical address, reset to %s (%x)", LIB_CEC->ToString(m_logicalAddress), m_logicalAddress); | |
213 | } | |
214 | m_logicalAddressCondition.Signal(); | |
215 | } | |
216 | break; | |
7d27bafc LOK |
217 | case VC_CEC_LOGICAL_ADDR_LOST: |
218 | { | |
219 | // the logical address was taken by another device | |
220 | cec_logical_address previousAddress = m_logicalAddress; | |
221 | m_logicalAddress = CECDEVICE_UNKNOWN; | |
f60ee8b3 LOK |
222 | |
223 | if (m_laLost && !m_laLost->IsRunning()) | |
224 | delete m_laLost; | |
225 | m_laLost = new CRPiCECAdapterFindNewLogicalAddress(this, previousAddress); | |
226 | if (m_laLost) | |
227 | m_laLost->CreateThread(); | |
7d27bafc LOK |
228 | } |
229 | break; | |
29104708 | 230 | case VC_CEC_TOPOLOGY: |
29104708 LOK |
231 | break; |
232 | default: | |
233 | LIB_CEC->AddLog(CEC_LOG_DEBUG, "ignoring unknown reason %x", reason); | |
234 | break; | |
235 | } | |
236 | } | |
237 | ||
238 | int CRPiCECAdapterCommunication::InitHostCEC(void) | |
239 | { | |
240 | VCHIQ_INSTANCE_T vchiq_instance; | |
241 | int iResult; | |
242 | ||
243 | if ((iResult = vchiq_initialise(&vchiq_instance)) != VCHIQ_SUCCESS) | |
244 | { | |
245 | LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchiq_initialise failed (%d)", __FUNCTION__, iResult); | |
246 | CStdString strError; | |
247 | strError.Format("%s - vchiq_initialise failed (%d)", __FUNCTION__, iResult); | |
248 | m_strError = strError; | |
249 | return iResult; | |
250 | } | |
251 | LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchiq_initialise succeeded", __FUNCTION__); | |
252 | ||
253 | if ((iResult = vchi_initialise(&m_vchi_instance)) != VCHIQ_SUCCESS) | |
254 | { | |
255 | LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchi_initialise failed (%d)", __FUNCTION__, iResult); | |
256 | CStdString strError; | |
257 | strError.Format("%s - vchi_initialise failed (%d)", __FUNCTION__, iResult); | |
258 | m_strError = strError; | |
259 | return iResult; | |
260 | } | |
261 | LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchi_initialise succeeded", __FUNCTION__); | |
262 | ||
263 | vchiq_instance = (VCHIQ_INSTANCE_T)m_vchi_instance; | |
264 | ||
265 | m_vchi_connection = vchi_create_connection(single_get_func_table(), | |
266 | vchi_mphi_message_driver_func_table()); | |
267 | ||
268 | if ((iResult = vchi_connect(&m_vchi_connection, 1, m_vchi_instance)) != VCHIQ_SUCCESS) | |
269 | { | |
270 | LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchi_connect failed (%d)", __FUNCTION__, iResult); | |
271 | CStdString strError; | |
272 | strError.Format("%s - vchi_connect failed (%d)", __FUNCTION__, iResult); | |
273 | m_strError = strError; | |
274 | return iResult; | |
275 | } | |
276 | LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchi_connect succeeded", __FUNCTION__); | |
277 | ||
278 | return VCHIQ_SUCCESS; | |
279 | } | |
280 | ||
281 | bool CRPiCECAdapterCommunication::Open(uint32_t iTimeoutMs /* = CEC_DEFAULT_CONNECT_TIMEOUT */, bool UNUSED(bSkipChecks) /* = false */, bool bStartListening) | |
282 | { | |
283 | Close(); | |
284 | ||
285 | if (InitHostCEC() != VCHIQ_SUCCESS) | |
286 | return false; | |
287 | ||
288 | if (bStartListening) | |
289 | { | |
290 | // enable passive mode | |
291 | vc_cec_set_passive(true); | |
292 | ||
293 | // register the callback | |
294 | vc_cec_register_callback(((CECSERVICE_CALLBACK_T)rpi_cec_callback), (void*)this); | |
295 | ||
296 | // release previous LA | |
297 | vc_cec_release_logical_address(); | |
298 | if (!m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged, iTimeoutMs)) | |
299 | { | |
300 | LIB_CEC->AddLog(CEC_LOG_ERROR, "failed to release the previous LA"); | |
301 | return false; | |
302 | } | |
303 | ||
304 | // register LA "freeuse" | |
305 | if (RegisterLogicalAddress(CECDEVICE_FREEUSE)) | |
306 | { | |
307 | LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vc_cec initialised", __FUNCTION__); | |
308 | CLockObject lock(m_mutex); | |
309 | m_bInitialised = true; | |
310 | } | |
311 | else | |
312 | LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vc_cec could not be initialised", __FUNCTION__); | |
313 | } | |
314 | ||
315 | return true; | |
316 | } | |
317 | ||
318 | uint16_t CRPiCECAdapterCommunication::GetPhysicalAddress(void) | |
319 | { | |
320 | uint16_t iPA(CEC_INVALID_PHYSICAL_ADDRESS); | |
321 | if (!IsInitialised()) | |
322 | return iPA; | |
323 | ||
324 | if (vc_cec_get_physical_address(&iPA) == VCHIQ_SUCCESS) | |
325 | LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - physical address = %04x", __FUNCTION__, iPA); | |
326 | else | |
327 | { | |
328 | LIB_CEC->AddLog(CEC_LOG_WARNING, "%s - failed to get the physical address", __FUNCTION__); | |
329 | iPA = CEC_INVALID_PHYSICAL_ADDRESS; | |
330 | } | |
331 | ||
332 | return iPA; | |
333 | } | |
334 | ||
335 | void CRPiCECAdapterCommunication::Close(void) | |
336 | { | |
337 | { | |
338 | CLockObject lock(m_mutex); | |
339 | if (m_bInitialised) | |
340 | m_bInitialised = false; | |
341 | else | |
342 | return; | |
343 | } | |
344 | UnregisterLogicalAddress(); | |
345 | ||
346 | // disable passive mode | |
347 | vc_cec_set_passive(false); | |
348 | ||
349 | if (!g_bHostInited) | |
350 | { | |
351 | g_bHostInited = false; | |
352 | bcm_host_deinit(); | |
353 | } | |
354 | } | |
355 | ||
356 | std::string CRPiCECAdapterCommunication::GetError(void) const | |
357 | { | |
358 | std::string strError(m_strError); | |
359 | return strError; | |
360 | } | |
361 | ||
362 | cec_adapter_message_state CRPiCECAdapterCommunication::Write(const cec_command &data, bool &UNUSED(bRetry), uint8_t UNUSED(iLineTimeout), bool bIsReply) | |
363 | { | |
364 | // ensure that the source LA is registered | |
365 | if (!RegisterLogicalAddress(data.initiator)) | |
366 | { | |
367 | LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to register logical address %s (%X)", CCECTypeUtils::ToString(data.initiator), data.initiator); | |
368 | return (data.initiator == data.destination) ? ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED : ADAPTER_MESSAGE_STATE_ERROR; | |
369 | } | |
370 | ||
371 | if (!data.opcode_set && data.initiator == data.destination) | |
372 | { | |
373 | // registration of the logical address would have failed | |
374 | return ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED; | |
375 | } | |
376 | ||
377 | return m_queue->Write(data, bIsReply) ? ADAPTER_MESSAGE_STATE_SENT_ACKED : ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED; | |
378 | } | |
379 | ||
380 | uint16_t CRPiCECAdapterCommunication::GetFirmwareVersion(void) | |
381 | { | |
382 | return VC_CECSERVICE_VER; | |
383 | } | |
384 | ||
385 | cec_logical_address CRPiCECAdapterCommunication::GetLogicalAddress(void) | |
386 | { | |
387 | { | |
388 | CLockObject lock(m_mutex); | |
389 | if (m_logicalAddress != CECDEVICE_UNKNOWN) | |
390 | return m_logicalAddress; | |
391 | } | |
392 | ||
393 | CEC_AllDevices_T address; | |
394 | return (vc_cec_get_logical_address(&address) == VCHIQ_SUCCESS) ? | |
395 | (cec_logical_address)address : CECDEVICE_UNKNOWN; | |
396 | } | |
397 | ||
398 | bool CRPiCECAdapterCommunication::UnregisterLogicalAddress(void) | |
399 | { | |
400 | CLockObject lock(m_mutex); | |
401 | if (m_logicalAddress == CECDEVICE_UNKNOWN || | |
402 | m_logicalAddress == CECDEVICE_BROADCAST) | |
403 | return true; | |
404 | ||
405 | LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - releasing previous logical address", __FUNCTION__); | |
406 | m_bLogicalAddressChanged = false; | |
407 | ||
408 | vc_cec_release_logical_address(); | |
409 | ||
410 | return m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged); | |
411 | } | |
412 | ||
413 | bool CRPiCECAdapterCommunication::RegisterLogicalAddress(const cec_logical_address address) | |
414 | { | |
415 | { | |
416 | CLockObject lock(m_mutex); | |
417 | if (m_logicalAddress == address) | |
418 | return true; | |
419 | } | |
420 | ||
421 | if (!UnregisterLogicalAddress()) | |
422 | return false; | |
423 | ||
424 | LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - registering address %x", __FUNCTION__, address); | |
425 | ||
426 | CLockObject lock(m_mutex); | |
427 | m_bLogicalAddressChanged = false; | |
428 | vc_cec_poll_address((CEC_AllDevices_T)address); | |
429 | ||
430 | // register the new LA | |
431 | int iRetval = vc_cec_set_logical_address((CEC_AllDevices_T)address, (CEC_DEVICE_TYPE_T)CCECTypeUtils::GetType(address), CEC_VENDOR_ID_BROADCOM); | |
432 | if (iRetval != VCHIQ_SUCCESS) | |
433 | { | |
434 | LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vc_cec_set_logical_address(%X) returned %s (%d)", __FUNCTION__, address, ToString((VC_CEC_ERROR_T)iRetval), iRetval); | |
435 | return false; | |
436 | } | |
437 | ||
438 | return m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged); | |
439 | } | |
440 | ||
441 | cec_logical_addresses CRPiCECAdapterCommunication::GetLogicalAddresses(void) | |
442 | { | |
443 | cec_logical_addresses addresses; addresses.Clear(); | |
444 | cec_logical_address current = GetLogicalAddress(); | |
445 | if (current != CECDEVICE_UNKNOWN) | |
446 | addresses.Set(current); | |
447 | ||
448 | return addresses; | |
449 | } | |
450 | ||
451 | bool CRPiCECAdapterCommunication::SetLogicalAddresses(const cec_logical_addresses &addresses) | |
452 | { | |
453 | // the current generation RPi only supports 1 LA, so just ensure that the primary address is registered | |
454 | return SupportsSourceLogicalAddress(addresses.primary) && | |
455 | RegisterLogicalAddress(addresses.primary); | |
456 | } | |
457 | ||
458 | void CRPiCECAdapterCommunication::InitHost(void) | |
459 | { | |
460 | if (!g_bHostInited) | |
461 | { | |
462 | g_bHostInited = true; | |
463 | bcm_host_init(); | |
464 | } | |
465 | } | |
466 | ||
467 | #endif |