[deb_libcec.git] / src / lib / adapter / RPi / RPiCECAdapterCommunication.cpp

/*
 * This file is part of the libCEC(R) library.
 *
 * libCEC(R) is Copyright (C) 2011-2012 Pulse-Eight Limited.  All rights reserved.
 * libCEC(R) is an original work, containing original code.
 *
 * libCEC(R) is a trademark of Pulse-Eight Limited.
 *
 * This program is dual-licensed; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 *
 * Alternatively, you can license this library under a commercial license,
 * please contact Pulse-Eight Licensing for more information.
 *
 * For more information contact:
 * Pulse-Eight Licensing       <license@pulse-eight.com>
 *     http://www.pulse-eight.com/
 *     http://www.pulse-eight.net/
 */

#include "env.h"

#if defined(HAVE_RPI_API)
#include "RPiCECAdapterCommunication.h"

extern "C" {
#include <bcm_host.h>
}

#include "lib/CECTypeUtils.h"
#include "lib/LibCEC.h"
#include "lib/platform/util/StdString.h"
#include "RPiCECAdapterMessageQueue.h"

using namespace CEC;
using namespace PLATFORM;

#define LIB_CEC m_callback->GetLib()

static bool g_bHostInited = false;

// callback for the RPi CEC service
void rpi_cec_callback(void *callback_data, uint32_t p0, uint32_t p1, uint32_t p2, uint32_t p3, uint32_t p4)
{
  if (callback_data)
    static_cast<CRPiCECAdapterCommunication *>(callback_data)->OnDataReceived(p0, p1, p2, p3, p4);
}

CRPiCECAdapterCommunication::CRPiCECAdapterCommunication(IAdapterCommunicationCallback *callback) :
    IAdapterCommunication(callback),
    m_logicalAddress(CECDEVICE_UNKNOWN),
    m_bLogicalAddressChanged(false)
{
  m_queue = new CRPiCECAdapterMessageQueue(this);
}

CRPiCECAdapterCommunication::~CRPiCECAdapterCommunication(void)
{
  delete(m_queue);
  Close();
}

const char *ToString(const VC_CEC_ERROR_T error)
{
  switch(error)
  {
  case VC_CEC_SUCCESS:
    return "success";
  case VC_CEC_ERROR_NO_ACK:
    return "no ack";
  case VC_CEC_ERROR_SHUTDOWN:
    return "shutdown";
  case VC_CEC_ERROR_BUSY:
    return "device is busy";
  case VC_CEC_ERROR_NO_LA:
    return "no logical address";
  case VC_CEC_ERROR_NO_PA:
    return "no physical address";
  case VC_CEC_ERROR_NO_TOPO:
    return "no topology";
  case VC_CEC_ERROR_INVALID_FOLLOWER:
    return "invalid follower";
  case VC_CEC_ERROR_INVALID_ARGUMENT:
    return "invalid arg";
  default:
    return "unknown";
  }
}

bool CRPiCECAdapterCommunication::IsInitialised(void)
{
  CLockObject lock(m_mutex);
  return m_bInitialised;
}

void CRPiCECAdapterCommunication::OnDataReceived(uint32_t header, uint32_t p0, uint32_t p1, uint32_t p2, uint32_t p3)
{
  VC_CEC_NOTIFY_T reason = (VC_CEC_NOTIFY_T)CEC_CB_REASON(header);

  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);

  switch (reason)
  {
  case VC_CEC_RX:
    // CEC data received
    {
      // translate into a VC_CEC_MESSAGE_T
      VC_CEC_MESSAGE_T message;
      vc_cec_param2message(header, p0, p1, p2, p3, &message);

      // translate to a cec_command
      cec_command command;
      cec_command::Format(command,
          (cec_logical_address)message.initiator,
          (cec_logical_address)message.follower,
          (cec_opcode)CEC_CB_OPCODE(p0));

      // copy parameters
      for (uint8_t iPtr = 1; iPtr < message.length; iPtr++)
        command.PushBack(message.payload[iPtr]);

      // send to libCEC
      m_callback->OnCommandReceived(command);
    }
    break;
  case VC_CEC_TX:
    {
      // handle response to a command that was sent earlier
      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));
    }
    break;
  case VC_CEC_BUTTON_PRESSED:
    {
      // translate into a cec_command
      cec_command command;
      cec_command::Format(command, (cec_logical_address)CEC_CB_INITIATOR(p0), (cec_logical_address)CEC_CB_FOLLOWER(p0), CEC_OPCODE_USER_CONTROL_PRESSED);
      command.parameters.PushBack((uint8_t)CEC_CB_OPERAND1(p0));

      // send to libCEC
      m_callback->OnCommandReceived(command);
    }
    break;
  case VC_CEC_BUTTON_RELEASE:
    {
      // translate into a cec_command
      cec_command command;
      cec_command::Format(command, (cec_logical_address)CEC_CB_INITIATOR(p0), (cec_logical_address)CEC_CB_FOLLOWER(p0), CEC_OPCODE_USER_CONTROL_RELEASE);
      command.parameters.PushBack((uint8_t)CEC_CB_OPERAND1(p0));

      // send to libCEC
      m_callback->OnCommandReceived(command);
    }
    break;
  case VC_CEC_LOGICAL_ADDR:
    {
      CLockObject lock(m_mutex);
      if (CEC_CB_RC(header) == VCHIQ_SUCCESS)
      {
        m_bLogicalAddressChanged = true;
        m_logicalAddress = (cec_logical_address)(p0 & 0xF);
        LIB_CEC->AddLog(CEC_LOG_DEBUG, "logical address changed to %s (%x)", LIB_CEC->ToString(m_logicalAddress), m_logicalAddress);
      }
      else
      {
        m_logicalAddress = CECDEVICE_BROADCAST;
        LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to change the logical address, reset to %s (%x)", LIB_CEC->ToString(m_logicalAddress), m_logicalAddress);
      }
      m_logicalAddressCondition.Signal();
    }
    break;
  case VC_CEC_TOPOLOGY:
  case VC_CEC_REMOTE_PRESSED:
  case VC_CEC_REMOTE_RELEASE:
    break;
  default:
    LIB_CEC->AddLog(CEC_LOG_DEBUG, "ignoring unknown reason %x", reason);
    break;
  }
}

int CRPiCECAdapterCommunication::InitHostCEC(void)
{
  VCHIQ_INSTANCE_T vchiq_instance;
  int iResult;

  if ((iResult = vchiq_initialise(&vchiq_instance)) != VCHIQ_SUCCESS)
  {
    LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchiq_initialise failed (%d)", __FUNCTION__, iResult);
    CStdString strError;
    strError.Format("%s - vchiq_initialise failed (%d)", __FUNCTION__, iResult);
    m_strError = strError;
    return iResult;
  }
  LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchiq_initialise succeeded", __FUNCTION__);

  if ((iResult = vchi_initialise(&m_vchi_instance)) != VCHIQ_SUCCESS)
  {
    LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchi_initialise failed (%d)", __FUNCTION__, iResult);
    CStdString strError;
    strError.Format("%s - vchi_initialise failed (%d)", __FUNCTION__, iResult);
    m_strError = strError;
    return iResult;
  }
  LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchi_initialise succeeded", __FUNCTION__);

  vchiq_instance = (VCHIQ_INSTANCE_T)m_vchi_instance;

  m_vchi_connection = vchi_create_connection(single_get_func_table(),
      vchi_mphi_message_driver_func_table());

  if ((iResult = vchi_connect(&m_vchi_connection, 1, m_vchi_instance)) != VCHIQ_SUCCESS)
  {
    LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchi_connect failed (%d)", __FUNCTION__, iResult);
    CStdString strError;
    strError.Format("%s - vchi_connect failed (%d)", __FUNCTION__, iResult);
    m_strError = strError;
    return iResult;
  }
  LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchi_connect succeeded", __FUNCTION__);

  return VCHIQ_SUCCESS;
}

bool CRPiCECAdapterCommunication::Open(uint32_t iTimeoutMs /* = CEC_DEFAULT_CONNECT_TIMEOUT */, bool UNUSED(bSkipChecks) /* = false */, bool bStartListening)
{
  Close();

  if (InitHostCEC() != VCHIQ_SUCCESS)
    return false;

  if (bStartListening)
  {
    // enable passive mode
    vc_cec_set_passive(true);

    // register the callback
    vc_cec_register_callback(((CECSERVICE_CALLBACK_T)rpi_cec_callback), (void*)this);

    // release previous LA
    vc_cec_release_logical_address();
    if (!m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged, iTimeoutMs))
    {
      LIB_CEC->AddLog(CEC_LOG_ERROR, "failed to release the previous LA");
      return false;
    }

    // register LA "freeuse"
    if (RegisterLogicalAddress(CECDEVICE_FREEUSE))
    {
      LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vc_cec initialised", __FUNCTION__);
      CLockObject lock(m_mutex);
      m_bInitialised = true;
    }
    else
      LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vc_cec could not be initialised", __FUNCTION__);
  }

  return true;
}

uint16_t CRPiCECAdapterCommunication::GetPhysicalAddress(void)
{
  uint16_t iPA(CEC_INVALID_PHYSICAL_ADDRESS);
  if (!IsInitialised())
    return iPA;

  if (vc_cec_get_physical_address(&iPA) == VCHIQ_SUCCESS)
    LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - physical address = %04x", __FUNCTION__, iPA);
  else
  {
    LIB_CEC->AddLog(CEC_LOG_WARNING, "%s - failed to get the physical address", __FUNCTION__);
    iPA = CEC_INVALID_PHYSICAL_ADDRESS;
  }

  return iPA;
}

void CRPiCECAdapterCommunication::Close(void)
{
  {
    CLockObject lock(m_mutex);
    if (m_bInitialised)
      m_bInitialised = false;
    else
      return;
  }
  UnregisterLogicalAddress();

  // disable passive mode
  vc_cec_set_passive(false);

  if (!g_bHostInited)
  {
    g_bHostInited = false;
    bcm_host_deinit();
  }
}

std::string CRPiCECAdapterCommunication::GetError(void) const
{
  std::string strError(m_strError);
  return strError;
}

cec_adapter_message_state CRPiCECAdapterCommunication::Write(const cec_command &data, bool &UNUSED(bRetry), uint8_t UNUSED(iLineTimeout), bool bIsReply)
{
  // ensure that the source LA is registered
  if (!RegisterLogicalAddress(data.initiator))
  {
    LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to register logical address %s (%X)", CCECTypeUtils::ToString(data.initiator), data.initiator);
    return (data.initiator == data.destination) ? ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED : ADAPTER_MESSAGE_STATE_ERROR;
  }

  if (!data.opcode_set && data.initiator == data.destination)
  {
    // registration of the logical address would have failed
    return ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED;
  }

  return m_queue->Write(data, bIsReply) ? ADAPTER_MESSAGE_STATE_SENT_ACKED : ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED;
}

uint16_t CRPiCECAdapterCommunication::GetFirmwareVersion(void)
{
  return VC_CECSERVICE_VER;
}

cec_logical_address CRPiCECAdapterCommunication::GetLogicalAddress(void)
{
  {
    CLockObject lock(m_mutex);
    if (m_logicalAddress != CECDEVICE_UNKNOWN)
      return m_logicalAddress;
  }

  CEC_AllDevices_T address;
  return (vc_cec_get_logical_address(&address) == VCHIQ_SUCCESS) ?
      (cec_logical_address)address : CECDEVICE_UNKNOWN;
}

bool CRPiCECAdapterCommunication::UnregisterLogicalAddress(void)
{
  CLockObject lock(m_mutex);
  if (m_logicalAddress == CECDEVICE_UNKNOWN ||
      m_logicalAddress == CECDEVICE_BROADCAST)
    return true;

  LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - releasing previous logical address", __FUNCTION__);
  m_bLogicalAddressChanged = false;

  vc_cec_release_logical_address();

  return m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged);
}

bool CRPiCECAdapterCommunication::RegisterLogicalAddress(const cec_logical_address address)
{
  {
    CLockObject lock(m_mutex);
    if (m_logicalAddress == address)
      return true;
  }

  if (!UnregisterLogicalAddress())
    return false;

  LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - registering address %x", __FUNCTION__, address);

  CLockObject lock(m_mutex);
  m_bLogicalAddressChanged = false;
  vc_cec_poll_address((CEC_AllDevices_T)address);

  // register the new LA
  int iRetval = vc_cec_set_logical_address((CEC_AllDevices_T)address, (CEC_DEVICE_TYPE_T)CCECTypeUtils::GetType(address), CEC_VENDOR_ID_BROADCOM);
  if (iRetval != VCHIQ_SUCCESS)
  {
    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);
    return false;
  }

  return m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged);
}

cec_logical_addresses CRPiCECAdapterCommunication::GetLogicalAddresses(void)
{
  cec_logical_addresses addresses; addresses.Clear();
  cec_logical_address current = GetLogicalAddress();
  if (current != CECDEVICE_UNKNOWN)
    addresses.Set(current);

  return addresses;
}

bool CRPiCECAdapterCommunication::SetLogicalAddresses(const cec_logical_addresses &addresses)
{
  // the current generation RPi only supports 1 LA, so just ensure that the primary address is registered
  return SupportsSourceLogicalAddress(addresses.primary) &&
      RegisterLogicalAddress(addresses.primary);
}

void CRPiCECAdapterCommunication::InitHost(void)
{
  if (!g_bHostInited)
  {
    g_bHostInited = true;
    bcm_host_init();
  }
}

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