[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_previousLogicalAddress(CECDEVICE_FREEUSE),
    m_bLogicalAddressRegistered(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);

#ifdef CEC_DEBUGGING
  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);
#endif

  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:
  case VC_CEC_REMOTE_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),
                          reason == VC_CEC_BUTTON_PRESSED ? CEC_OPCODE_USER_CONTROL_PRESSED : CEC_OPCODE_VENDOR_REMOTE_BUTTON_DOWN);
      command.parameters.PushBack((uint8_t)CEC_CB_OPERAND1(p0));

      // send to libCEC
      m_callback->OnCommandReceived(command);
    }
    break;
  case VC_CEC_BUTTON_RELEASE:
  case VC_CEC_REMOTE_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),
                          reason == VC_CEC_BUTTON_PRESSED ? CEC_OPCODE_USER_CONTROL_RELEASE : CEC_OPCODE_VENDOR_REMOTE_BUTTON_UP);
      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);
      m_previousLogicalAddress = m_logicalAddress;
      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_FREEUSE;
        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 == CECDEVICE_BROADCAST ? m_previousLogicalAddress : m_logicalAddress;
      m_logicalAddress = CECDEVICE_UNKNOWN;

      // notify libCEC that we lost our LA when the connection was initialised
      bool bNotify(false);
      {
        CLockObject lock(m_mutex);
        bNotify = m_bInitialised && m_bLogicalAddressRegistered;
      }
      if (bNotify)
        m_callback->HandleLogicalAddressLost(previousAddress);
    }
    break;
  case VC_CEC_TOPOLOGY:
    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);

    // 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__);
  {
    CLockObject lock(m_mutex);
    m_bLogicalAddressRegistered = false;
    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;
  }

  if (m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged))
  {
    m_bLogicalAddressRegistered = true;
    return true;
  }
  return false;
}

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),
d1a2ed70	64	m_bLogicalAddressChanged(false),
057497c6 LOK	65	m_previousLogicalAddress(CECDEVICE_FREEUSE),
057497c6 LOK	66	m_bLogicalAddressRegistered(false)
29104708 LOK	67	{
	68	m_queue = new CRPiCECAdapterMessageQueue(this);
	69	}
	70
	71	CRPiCECAdapterCommunication::~CRPiCECAdapterCommunication(void)
	72	{
	73	delete(m_queue);
	74	Close();
	75	}
	76
	77	const char *ToString(const VC_CEC_ERROR_T error)
	78	{
	79	switch(error)
	80	{
	81	case VC_CEC_SUCCESS:
	82	return "success";
	83	case VC_CEC_ERROR_NO_ACK:
	84	return "no ack";
	85	case VC_CEC_ERROR_SHUTDOWN:
	86	return "shutdown";
	87	case VC_CEC_ERROR_BUSY:
	88	return "device is busy";
	89	case VC_CEC_ERROR_NO_LA:
	90	return "no logical address";
	91	case VC_CEC_ERROR_NO_PA:
	92	return "no physical address";
	93	case VC_CEC_ERROR_NO_TOPO:
	94	return "no topology";
	95	case VC_CEC_ERROR_INVALID_FOLLOWER:
	96	return "invalid follower";
	97	case VC_CEC_ERROR_INVALID_ARGUMENT:
	98	return "invalid arg";
	99	default:
	100	return "unknown";
	101	}
	102	}
	103
	104	bool CRPiCECAdapterCommunication::IsInitialised(void)
	105	{
	106	CLockObject lock(m_mutex);
	107	return m_bInitialised;
	108	}
	109
	110	void CRPiCECAdapterCommunication::OnDataReceived(uint32_t header, uint32_t p0, uint32_t p1, uint32_t p2, uint32_t p3)
	111	{
	112	VC_CEC_NOTIFY_T reason = (VC_CEC_NOTIFY_T)CEC_CB_REASON(header);
	113
b509ba1a	114	#ifdef CEC_DEBUGGING
29104708	115	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);
b509ba1a	116	#endif
29104708 LOK	117
	118	switch (reason)
	119	{
	120	case VC_CEC_RX:
	121	// CEC data received
	122	{
	123	// translate into a VC_CEC_MESSAGE_T
	124	VC_CEC_MESSAGE_T message;
	125	vc_cec_param2message(header, p0, p1, p2, p3, &message);
	126
	127	// translate to a cec_command
	128	cec_command command;
	129	cec_command::Format(command,
	130	(cec_logical_address)message.initiator,
	131	(cec_logical_address)message.follower,
	132	(cec_opcode)CEC_CB_OPCODE(p0));
	133
	134	// copy parameters
	135	for (uint8_t iPtr = 1; iPtr < message.length; iPtr++)
	136	command.PushBack(message.payload[iPtr]);
	137
	138	// send to libCEC
	139	m_callback->OnCommandReceived(command);
	140	}
	141	break;
	142	case VC_CEC_TX:
	143	{
	144	// handle response to a command that was sent earlier
	145	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));
	146	}
	147	break;
	148	case VC_CEC_BUTTON_PRESSED:
3b106c7d	149	case VC_CEC_REMOTE_PRESSED:
29104708 LOK	150	{
	151	// translate into a cec_command
	152	cec_command command;
3b106c7d LOK	153	cec_command::Format(command,
	154	(cec_logical_address)CEC_CB_INITIATOR(p0),
	155	(cec_logical_address)CEC_CB_FOLLOWER(p0),
	156	reason == VC_CEC_BUTTON_PRESSED ? CEC_OPCODE_USER_CONTROL_PRESSED : CEC_OPCODE_VENDOR_REMOTE_BUTTON_DOWN);
29104708 LOK	157	command.parameters.PushBack((uint8_t)CEC_CB_OPERAND1(p0));
	158
	159	// send to libCEC
	160	m_callback->OnCommandReceived(command);
	161	}
	162	break;
	163	case VC_CEC_BUTTON_RELEASE:
3b106c7d	164	case VC_CEC_REMOTE_RELEASE:
29104708 LOK	165	{
	166	// translate into a cec_command
	167	cec_command command;
3b106c7d LOK	168	cec_command::Format(command,
	169	(cec_logical_address)CEC_CB_INITIATOR(p0),
	170	(cec_logical_address)CEC_CB_FOLLOWER(p0),
	171	reason == VC_CEC_BUTTON_PRESSED ? CEC_OPCODE_USER_CONTROL_RELEASE : CEC_OPCODE_VENDOR_REMOTE_BUTTON_UP);
29104708 LOK	172	command.parameters.PushBack((uint8_t)CEC_CB_OPERAND1(p0));
	173
	174	// send to libCEC
	175	m_callback->OnCommandReceived(command);
	176	}
	177	break;
	178	case VC_CEC_LOGICAL_ADDR:
	179	{
	180	CLockObject lock(m_mutex);
d1a2ed70	181	m_previousLogicalAddress = m_logicalAddress;
29104708 LOK	182	if (CEC_CB_RC(header) == VCHIQ_SUCCESS)
	183	{
	184	m_bLogicalAddressChanged = true;
	185	m_logicalAddress = (cec_logical_address)(p0 & 0xF);
	186	LIB_CEC->AddLog(CEC_LOG_DEBUG, "logical address changed to %s (%x)", LIB_CEC->ToString(m_logicalAddress), m_logicalAddress);
	187	}
	188	else
	189	{
d1a2ed70	190	m_logicalAddress = CECDEVICE_FREEUSE;
29104708 LOK	191	LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to change the logical address, reset to %s (%x)", LIB_CEC->ToString(m_logicalAddress), m_logicalAddress);
	192	}
	193	m_logicalAddressCondition.Signal();
	194	}
	195	break;
7d27bafc LOK	196	case VC_CEC_LOGICAL_ADDR_LOST:
	197	{
	198	// the logical address was taken by another device
d1a2ed70	199	cec_logical_address previousAddress = m_logicalAddress == CECDEVICE_BROADCAST ? m_previousLogicalAddress : m_logicalAddress;
7d27bafc	200	m_logicalAddress = CECDEVICE_UNKNOWN;
f60ee8b3	201
40119e0c	202	// notify libCEC that we lost our LA when the connection was initialised
057497c6 LOK	203	bool bNotify(false);
	204	{
	205	CLockObject lock(m_mutex);
	206	bNotify = m_bInitialised && m_bLogicalAddressRegistered;
	207	}
	208	if (bNotify)
40119e0c	209	m_callback->HandleLogicalAddressLost(previousAddress);
7d27bafc LOK	210	}
7d27bafc LOK	211	break;
29104708	212	case VC_CEC_TOPOLOGY:
29104708 LOK	213	break;
	214	default:
	215	LIB_CEC->AddLog(CEC_LOG_DEBUG, "ignoring unknown reason %x", reason);
	216	break;
	217	}
	218	}
	219
	220	int CRPiCECAdapterCommunication::InitHostCEC(void)
	221	{
	222	VCHIQ_INSTANCE_T vchiq_instance;
	223	int iResult;
	224
	225	if ((iResult = vchiq_initialise(&vchiq_instance)) != VCHIQ_SUCCESS)
	226	{
	227	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchiq_initialise failed (%d)", __FUNCTION__, iResult);
	228	CStdString strError;
	229	strError.Format("%s - vchiq_initialise failed (%d)", __FUNCTION__, iResult);
	230	m_strError = strError;
	231	return iResult;
	232	}
	233	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchiq_initialise succeeded", __FUNCTION__);
	234
	235	if ((iResult = vchi_initialise(&m_vchi_instance)) != VCHIQ_SUCCESS)
	236	{
	237	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchi_initialise failed (%d)", __FUNCTION__, iResult);
	238	CStdString strError;
	239	strError.Format("%s - vchi_initialise failed (%d)", __FUNCTION__, iResult);
	240	m_strError = strError;
	241	return iResult;
	242	}
	243	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchi_initialise succeeded", __FUNCTION__);
	244
	245	vchiq_instance = (VCHIQ_INSTANCE_T)m_vchi_instance;
	246
	247	m_vchi_connection = vchi_create_connection(single_get_func_table(),
	248	vchi_mphi_message_driver_func_table());
	249
	250	if ((iResult = vchi_connect(&m_vchi_connection, 1, m_vchi_instance)) != VCHIQ_SUCCESS)
	251	{
	252	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchi_connect failed (%d)", __FUNCTION__, iResult);
	253	CStdString strError;
	254	strError.Format("%s - vchi_connect failed (%d)", __FUNCTION__, iResult);
	255	m_strError = strError;
	256	return iResult;
	257	}
	258	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchi_connect succeeded", __FUNCTION__);
	259
	260	return VCHIQ_SUCCESS;
	261	}
	262
	263	bool CRPiCECAdapterCommunication::Open(uint32_t iTimeoutMs /* = CEC_DEFAULT_CONNECT_TIMEOUT /, bool UNUSED(bSkipChecks) / = false */, bool bStartListening)
	264	{
	265	Close();
	266
	267	if (InitHostCEC() != VCHIQ_SUCCESS)
	268	return false;
	269
	270	if (bStartListening)
	271	{
	272	// enable passive mode
	273	vc_cec_set_passive(true);
	274
	275	// register the callback
	276	vc_cec_register_callback(((CECSERVICE_CALLBACK_T)rpi_cec_callback), (void*)this);
277
29104708 LOK	278	// register LA "freeuse"
	279	if (RegisterLogicalAddress(CECDEVICE_FREEUSE))
	280	{
	281	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vc_cec initialised", __FUNCTION__);
	282	CLockObject lock(m_mutex);
	283	m_bInitialised = true;
	284	}
	285	else
	286	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vc_cec could not be initialised", __FUNCTION__);
	287	}
	288
	289	return true;
	290	}
	291
	292	uint16_t CRPiCECAdapterCommunication::GetPhysicalAddress(void)
	293	{
	294	uint16_t iPA(CEC_INVALID_PHYSICAL_ADDRESS);
	295	if (!IsInitialised())
	296	return iPA;
	297
	298	if (vc_cec_get_physical_address(&iPA) == VCHIQ_SUCCESS)
	299	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - physical address = %04x", __FUNCTION__, iPA);
	300	else
	301	{
	302	LIB_CEC->AddLog(CEC_LOG_WARNING, "%s - failed to get the physical address", __FUNCTION__);
	303	iPA = CEC_INVALID_PHYSICAL_ADDRESS;
	304	}
	305
	306	return iPA;
	307	}
	308
	309	void CRPiCECAdapterCommunication::Close(void)
	310	{
	311	{
	312	CLockObject lock(m_mutex);
	313	if (m_bInitialised)
	314	m_bInitialised = false;
	315	else
	316	return;
	317	}
	318	UnregisterLogicalAddress();
	319
	320	// disable passive mode
	321	vc_cec_set_passive(false);
	322
	323	if (!g_bHostInited)
	324	{
	325	g_bHostInited = false;
	326	bcm_host_deinit();
	327	}
	328	}
	329
	330	std::string CRPiCECAdapterCommunication::GetError(void) const
	331	{
	332	std::string strError(m_strError);
	333	return strError;
	334	}
	335
	336	cec_adapter_message_state CRPiCECAdapterCommunication::Write(const cec_command &data, bool &UNUSED(bRetry), uint8_t UNUSED(iLineTimeout), bool bIsReply)
	337	{
	338	// ensure that the source LA is registered
	339	if (!RegisterLogicalAddress(data.initiator))
	340	{
	341	LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to register logical address %s (%X)", CCECTypeUtils::ToString(data.initiator), data.initiator);
342	return (data.initiator == data.destination) ? ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED : ADAPTER_MESSAGE_STATE_ERROR;
343	}
344
345	if (!data.opcode_set && data.initiator == data.destination)
346	{
347	// registration of the logical address would have failed
348	return ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED;
349	}
350
351	return m_queue->Write(data, bIsReply) ? ADAPTER_MESSAGE_STATE_SENT_ACKED : ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED;
352	}
353
354	uint16_t CRPiCECAdapterCommunication::GetFirmwareVersion(void)
355	{
356	return VC_CECSERVICE_VER;
357	}
358
359	cec_logical_address CRPiCECAdapterCommunication::GetLogicalAddress(void)
360	{
361	{
362	CLockObject lock(m_mutex);
363	if (m_logicalAddress != CECDEVICE_UNKNOWN)
364	return m_logicalAddress;
365	}
366
367	CEC_AllDevices_T address;
368	return (vc_cec_get_logical_address(&address) == VCHIQ_SUCCESS) ?
369	(cec_logical_address)address : CECDEVICE_UNKNOWN;
370	}
371
372	bool CRPiCECAdapterCommunication::UnregisterLogicalAddress(void)
373	{
374	CLockObject lock(m_mutex);
375	if (m_logicalAddress == CECDEVICE_UNKNOWN \|\|
376	m_logicalAddress == CECDEVICE_BROADCAST)
377	return true;
378
379	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - releasing previous logical address", __FUNCTION__);
057497c6 LOK	380	{
	381	CLockObject lock(m_mutex);
	382	m_bLogicalAddressRegistered = false;
	383	m_bLogicalAddressChanged = false;
	384	}
29104708 LOK	385
	386	vc_cec_release_logical_address();
	387
	388	return m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged);
	389	}
	390
	391	bool CRPiCECAdapterCommunication::RegisterLogicalAddress(const cec_logical_address address)
	392	{
	393	{
	394	CLockObject lock(m_mutex);
	395	if (m_logicalAddress == address)
	396	return true;
	397	}
	398
	399	if (!UnregisterLogicalAddress())
	400	return false;
	401
	402	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - registering address %x", __FUNCTION__, address);
	403
	404	CLockObject lock(m_mutex);
	405	m_bLogicalAddressChanged = false;
	406	vc_cec_poll_address((CEC_AllDevices_T)address);
	407
	408	// register the new LA
	409	int iRetval = vc_cec_set_logical_address((CEC_AllDevices_T)address, (CEC_DEVICE_TYPE_T)CCECTypeUtils::GetType(address), CEC_VENDOR_ID_BROADCOM);
	410	if (iRetval != VCHIQ_SUCCESS)
	411	{
	412	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);
	413	return false;
	414	}
	415
057497c6 LOK	416	if (m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged))
	417	{
	418	m_bLogicalAddressRegistered = true;
	419	return true;
	420	}
	421	return false;
29104708 LOK	422	}
	423
	424	cec_logical_addresses CRPiCECAdapterCommunication::GetLogicalAddresses(void)
	425	{
	426	cec_logical_addresses addresses; addresses.Clear();
	427	cec_logical_address current = GetLogicalAddress();
	428	if (current != CECDEVICE_UNKNOWN)
	429	addresses.Set(current);
	430
	431	return addresses;
	432	}
	433
	434	bool CRPiCECAdapterCommunication::SetLogicalAddresses(const cec_logical_addresses &addresses)
	435	{
	436	// the current generation RPi only supports 1 LA, so just ensure that the primary address is registered
	437	return SupportsSourceLogicalAddress(addresses.primary) &&
	438	RegisterLogicalAddress(addresses.primary);
	439	}
	440
	441	void CRPiCECAdapterCommunication::InitHost(void)
	442	{
	443	if (!g_bHostInited)
	444	{
	445	g_bHostInited = true;
	446	bcm_host_init();
	447	}
	448	}
	449
	450	#endif