[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_LOGICAL_ADDR_LOST:
    {
      // the logical address was taken by another device
      cec_logical_address previousAddress = m_logicalAddress;
      m_logicalAddress = CECDEVICE_UNKNOWN;
      m_callback->HandleLogicalAddressLost(previousAddress);
    }
    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;
7d27bafc LOK	183	case VC_CEC_LOGICAL_ADDR_LOST:
	184	{
	185	// the logical address was taken by another device
	186	cec_logical_address previousAddress = m_logicalAddress;
	187	m_logicalAddress = CECDEVICE_UNKNOWN;
	188	m_callback->HandleLogicalAddressLost(previousAddress);
	189	}
	190	break;
29104708 LOK	191	case VC_CEC_TOPOLOGY:
	192	case VC_CEC_REMOTE_PRESSED:
	193	case VC_CEC_REMOTE_RELEASE:
	194	break;
	195	default:
	196	LIB_CEC->AddLog(CEC_LOG_DEBUG, "ignoring unknown reason %x", reason);
	197	break;
	198	}
	199	}
	200
	201	int CRPiCECAdapterCommunication::InitHostCEC(void)
	202	{
	203	VCHIQ_INSTANCE_T vchiq_instance;
	204	int iResult;
	205
	206	if ((iResult = vchiq_initialise(&vchiq_instance)) != VCHIQ_SUCCESS)
	207	{
	208	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchiq_initialise failed (%d)", __FUNCTION__, iResult);
	209	CStdString strError;
	210	strError.Format("%s - vchiq_initialise failed (%d)", __FUNCTION__, iResult);
	211	m_strError = strError;
	212	return iResult;
	213	}
	214	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchiq_initialise succeeded", __FUNCTION__);
	215
	216	if ((iResult = vchi_initialise(&m_vchi_instance)) != VCHIQ_SUCCESS)
	217	{
	218	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchi_initialise failed (%d)", __FUNCTION__, iResult);
	219	CStdString strError;
	220	strError.Format("%s - vchi_initialise failed (%d)", __FUNCTION__, iResult);
	221	m_strError = strError;
	222	return iResult;
	223	}
	224	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchi_initialise succeeded", __FUNCTION__);
	225
	226	vchiq_instance = (VCHIQ_INSTANCE_T)m_vchi_instance;
	227
	228	m_vchi_connection = vchi_create_connection(single_get_func_table(),
	229	vchi_mphi_message_driver_func_table());
	230
	231	if ((iResult = vchi_connect(&m_vchi_connection, 1, m_vchi_instance)) != VCHIQ_SUCCESS)
	232	{
	233	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchi_connect failed (%d)", __FUNCTION__, iResult);
	234	CStdString strError;
	235	strError.Format("%s - vchi_connect failed (%d)", __FUNCTION__, iResult);
	236	m_strError = strError;
	237	return iResult;
	238	}
	239	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchi_connect succeeded", __FUNCTION__);
	240
	241	return VCHIQ_SUCCESS;
	242	}
	243
	244	bool CRPiCECAdapterCommunication::Open(uint32_t iTimeoutMs /* = CEC_DEFAULT_CONNECT_TIMEOUT /, bool UNUSED(bSkipChecks) / = false */, bool bStartListening)
	245	{
	246	Close();
	247
	248	if (InitHostCEC() != VCHIQ_SUCCESS)
	249	return false;
	250
	251	if (bStartListening)
	252	{
	253	// enable passive mode
	254	vc_cec_set_passive(true);
255
256	// register the callback
257	vc_cec_register_callback(((CECSERVICE_CALLBACK_T)rpi_cec_callback), (void*)this);
258
259	// release previous LA
260	vc_cec_release_logical_address();
261	if (!m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged, iTimeoutMs))
262	{
263	LIB_CEC->AddLog(CEC_LOG_ERROR, "failed to release the previous LA");
264	return false;
265	}
266
267	// register LA "freeuse"
268	if (RegisterLogicalAddress(CECDEVICE_FREEUSE))
269	{
270	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vc_cec initialised", __FUNCTION__);
271	CLockObject lock(m_mutex);
272	m_bInitialised = true;
273	}
274	else
275	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vc_cec could not be initialised", __FUNCTION__);
276	}
277
278	return true;
279	}
280
281	uint16_t CRPiCECAdapterCommunication::GetPhysicalAddress(void)
282	{
283	uint16_t iPA(CEC_INVALID_PHYSICAL_ADDRESS);
284	if (!IsInitialised())
285	return iPA;
286
287	if (vc_cec_get_physical_address(&iPA) == VCHIQ_SUCCESS)
288	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - physical address = %04x", __FUNCTION__, iPA);
289	else
290	{
291	LIB_CEC->AddLog(CEC_LOG_WARNING, "%s - failed to get the physical address", __FUNCTION__);
292	iPA = CEC_INVALID_PHYSICAL_ADDRESS;
293	}
294
295	return iPA;
296	}
297
298	void CRPiCECAdapterCommunication::Close(void)
299	{
300	{
301	CLockObject lock(m_mutex);
302	if (m_bInitialised)
303	m_bInitialised = false;
304	else
305	return;
306	}
307	UnregisterLogicalAddress();
308
309	// disable passive mode
310	vc_cec_set_passive(false);
311
312	if (!g_bHostInited)
313	{
314	g_bHostInited = false;
315	bcm_host_deinit();
316	}
317	}
318
319	std::string CRPiCECAdapterCommunication::GetError(void) const
320	{
321	std::string strError(m_strError);
322	return strError;
323	}
324
325	cec_adapter_message_state CRPiCECAdapterCommunication::Write(const cec_command &data, bool &UNUSED(bRetry), uint8_t UNUSED(iLineTimeout), bool bIsReply)
326	{
327	// ensure that the source LA is registered
328	if (!RegisterLogicalAddress(data.initiator))
329	{
330	LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to register logical address %s (%X)", CCECTypeUtils::ToString(data.initiator), data.initiator);
331	return (data.initiator == data.destination) ? ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED : ADAPTER_MESSAGE_STATE_ERROR;
332	}
333
334	if (!data.opcode_set && data.initiator == data.destination)
335	{
336	// registration of the logical address would have failed
337	return ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED;
338	}
339
340	return m_queue->Write(data, bIsReply) ? ADAPTER_MESSAGE_STATE_SENT_ACKED : ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED;
341	}
342
343	uint16_t CRPiCECAdapterCommunication::GetFirmwareVersion(void)
344	{
345	return VC_CECSERVICE_VER;
346	}
347
348	cec_logical_address CRPiCECAdapterCommunication::GetLogicalAddress(void)
349	{
350	{
351	CLockObject lock(m_mutex);
352	if (m_logicalAddress != CECDEVICE_UNKNOWN)
353	return m_logicalAddress;
354	}
355
356	CEC_AllDevices_T address;
357	return (vc_cec_get_logical_address(&address) == VCHIQ_SUCCESS) ?
358	(cec_logical_address)address : CECDEVICE_UNKNOWN;
359	}
360
361	bool CRPiCECAdapterCommunication::UnregisterLogicalAddress(void)
362	{
363	CLockObject lock(m_mutex);
364	if (m_logicalAddress == CECDEVICE_UNKNOWN \|\|
365	m_logicalAddress == CECDEVICE_BROADCAST)
366	return true;
367
368	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - releasing previous logical address", __FUNCTION__);
369	m_bLogicalAddressChanged = false;
370
371	vc_cec_release_logical_address();
372
373	return m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged);
374	}
375
376	bool CRPiCECAdapterCommunication::RegisterLogicalAddress(const cec_logical_address address)
377	{
378	{
379	CLockObject lock(m_mutex);
380	if (m_logicalAddress == address)
381	return true;
382	}
383
384	if (!UnregisterLogicalAddress())
385	return false;
386
387	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - registering address %x", __FUNCTION__, address);
388
389	CLockObject lock(m_mutex);
390	m_bLogicalAddressChanged = false;
391	vc_cec_poll_address((CEC_AllDevices_T)address);
392
393	// register the new LA
394	int iRetval = vc_cec_set_logical_address((CEC_AllDevices_T)address, (CEC_DEVICE_TYPE_T)CCECTypeUtils::GetType(address), CEC_VENDOR_ID_BROADCOM);
395	if (iRetval != VCHIQ_SUCCESS)
396	{
397	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);
398	return false;
399	}
400
401	return m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged);
402	}
403
404	cec_logical_addresses CRPiCECAdapterCommunication::GetLogicalAddresses(void)
405	{
406	cec_logical_addresses addresses; addresses.Clear();
407	cec_logical_address current = GetLogicalAddress();
408	if (current != CECDEVICE_UNKNOWN)
409	addresses.Set(current);
410
411	return addresses;
412	}
413
414	bool CRPiCECAdapterCommunication::SetLogicalAddresses(const cec_logical_addresses &addresses)
415	{
416	// the current generation RPi only supports 1 LA, so just ensure that the primary address is registered
417	return SupportsSourceLogicalAddress(addresses.primary) &&
418	RegisterLogicalAddress(addresses.primary);
419	}
420
421	void CRPiCECAdapterCommunication::InitHost(void)
422	{
423	if (!g_bHostInited)
424	{
425	g_bHostInited = true;
426	bcm_host_init();
427	}
428	}
429
430	#endif