[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_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:
  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
      if (m_bInitialised)
        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);

    // 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),
d1a2ed70 LOK	64	m_bLogicalAddressChanged(false),
d1a2ed70 LOK	65	m_previousLogicalAddress(CECDEVICE_FREEUSE)
29104708 LOK	66	{
	67	m_queue = new CRPiCECAdapterMessageQueue(this);
	68	}
	69
	70	CRPiCECAdapterCommunication::~CRPiCECAdapterCommunication(void)
	71	{
	72	delete(m_queue);
	73	Close();
	74	}
	75
	76	const char *ToString(const VC_CEC_ERROR_T error)
	77	{
	78	switch(error)
	79	{
	80	case VC_CEC_SUCCESS:
	81	return "success";
	82	case VC_CEC_ERROR_NO_ACK:
	83	return "no ack";
	84	case VC_CEC_ERROR_SHUTDOWN:
	85	return "shutdown";
	86	case VC_CEC_ERROR_BUSY:
	87	return "device is busy";
	88	case VC_CEC_ERROR_NO_LA:
	89	return "no logical address";
	90	case VC_CEC_ERROR_NO_PA:
	91	return "no physical address";
	92	case VC_CEC_ERROR_NO_TOPO:
	93	return "no topology";
	94	case VC_CEC_ERROR_INVALID_FOLLOWER:
	95	return "invalid follower";
	96	case VC_CEC_ERROR_INVALID_ARGUMENT:
	97	return "invalid arg";
	98	default:
	99	return "unknown";
	100	}
	101	}
	102
	103	bool CRPiCECAdapterCommunication::IsInitialised(void)
	104	{
	105	CLockObject lock(m_mutex);
	106	return m_bInitialised;
	107	}
	108
	109	void CRPiCECAdapterCommunication::OnDataReceived(uint32_t header, uint32_t p0, uint32_t p1, uint32_t p2, uint32_t p3)
	110	{
	111	VC_CEC_NOTIFY_T reason = (VC_CEC_NOTIFY_T)CEC_CB_REASON(header);
	112
	113	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);
	114
	115	switch (reason)
	116	{
	117	case VC_CEC_RX:
	118	// CEC data received
	119	{
	120	// translate into a VC_CEC_MESSAGE_T
	121	VC_CEC_MESSAGE_T message;
	122	vc_cec_param2message(header, p0, p1, p2, p3, &message);
	123
	124	// translate to a cec_command
	125	cec_command command;
	126	cec_command::Format(command,
	127	(cec_logical_address)message.initiator,
	128	(cec_logical_address)message.follower,
	129	(cec_opcode)CEC_CB_OPCODE(p0));
130
131	// copy parameters
132	for (uint8_t iPtr = 1; iPtr < message.length; iPtr++)
133	command.PushBack(message.payload[iPtr]);
134
135	// send to libCEC
136	m_callback->OnCommandReceived(command);
137	}
138	break;
139	case VC_CEC_TX:
140	{
141	// handle response to a command that was sent earlier
142	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));
143	}
144	break;
145	case VC_CEC_BUTTON_PRESSED:
3b106c7d	146	case VC_CEC_REMOTE_PRESSED:
29104708 LOK	147	{
	148	// translate into a cec_command
	149	cec_command command;
3b106c7d LOK	150	cec_command::Format(command,
	151	(cec_logical_address)CEC_CB_INITIATOR(p0),
	152	(cec_logical_address)CEC_CB_FOLLOWER(p0),
	153	reason == VC_CEC_BUTTON_PRESSED ? CEC_OPCODE_USER_CONTROL_PRESSED : CEC_OPCODE_VENDOR_REMOTE_BUTTON_DOWN);
29104708 LOK	154	command.parameters.PushBack((uint8_t)CEC_CB_OPERAND1(p0));
	155
	156	// send to libCEC
	157	m_callback->OnCommandReceived(command);
	158	}
	159	break;
	160	case VC_CEC_BUTTON_RELEASE:
3b106c7d	161	case VC_CEC_REMOTE_RELEASE:
29104708 LOK	162	{
	163	// translate into a cec_command
	164	cec_command command;
3b106c7d LOK	165	cec_command::Format(command,
	166	(cec_logical_address)CEC_CB_INITIATOR(p0),
	167	(cec_logical_address)CEC_CB_FOLLOWER(p0),
	168	reason == VC_CEC_BUTTON_PRESSED ? CEC_OPCODE_USER_CONTROL_RELEASE : CEC_OPCODE_VENDOR_REMOTE_BUTTON_UP);
29104708 LOK	169	command.parameters.PushBack((uint8_t)CEC_CB_OPERAND1(p0));
	170
	171	// send to libCEC
	172	m_callback->OnCommandReceived(command);
	173	}
	174	break;
	175	case VC_CEC_LOGICAL_ADDR:
	176	{
	177	CLockObject lock(m_mutex);
d1a2ed70	178	m_previousLogicalAddress = m_logicalAddress;
29104708 LOK	179	if (CEC_CB_RC(header) == VCHIQ_SUCCESS)
	180	{
	181	m_bLogicalAddressChanged = true;
	182	m_logicalAddress = (cec_logical_address)(p0 & 0xF);
	183	LIB_CEC->AddLog(CEC_LOG_DEBUG, "logical address changed to %s (%x)", LIB_CEC->ToString(m_logicalAddress), m_logicalAddress);
	184	}
	185	else
	186	{
d1a2ed70	187	m_logicalAddress = CECDEVICE_FREEUSE;
29104708 LOK	188	LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to change the logical address, reset to %s (%x)", LIB_CEC->ToString(m_logicalAddress), m_logicalAddress);
	189	}
	190	m_logicalAddressCondition.Signal();
	191	}
	192	break;
7d27bafc LOK	193	case VC_CEC_LOGICAL_ADDR_LOST:
	194	{
	195	// the logical address was taken by another device
d1a2ed70	196	cec_logical_address previousAddress = m_logicalAddress == CECDEVICE_BROADCAST ? m_previousLogicalAddress : m_logicalAddress;
7d27bafc	197	m_logicalAddress = CECDEVICE_UNKNOWN;
f60ee8b3	198
40119e0c LOK	199	// notify libCEC that we lost our LA when the connection was initialised
	200	if (m_bInitialised)
	201	m_callback->HandleLogicalAddressLost(previousAddress);
7d27bafc LOK	202	}
7d27bafc LOK	203	break;
29104708	204	case VC_CEC_TOPOLOGY:
29104708 LOK	205	break;
	206	default:
	207	LIB_CEC->AddLog(CEC_LOG_DEBUG, "ignoring unknown reason %x", reason);
	208	break;
	209	}
	210	}
	211
	212	int CRPiCECAdapterCommunication::InitHostCEC(void)
	213	{
	214	VCHIQ_INSTANCE_T vchiq_instance;
	215	int iResult;
	216
	217	if ((iResult = vchiq_initialise(&vchiq_instance)) != VCHIQ_SUCCESS)
	218	{
	219	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchiq_initialise failed (%d)", __FUNCTION__, iResult);
	220	CStdString strError;
	221	strError.Format("%s - vchiq_initialise failed (%d)", __FUNCTION__, iResult);
	222	m_strError = strError;
	223	return iResult;
	224	}
	225	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchiq_initialise succeeded", __FUNCTION__);
	226
	227	if ((iResult = vchi_initialise(&m_vchi_instance)) != VCHIQ_SUCCESS)
	228	{
	229	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchi_initialise failed (%d)", __FUNCTION__, iResult);
	230	CStdString strError;
	231	strError.Format("%s - vchi_initialise failed (%d)", __FUNCTION__, iResult);
	232	m_strError = strError;
	233	return iResult;
	234	}
	235	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchi_initialise succeeded", __FUNCTION__);
	236
	237	vchiq_instance = (VCHIQ_INSTANCE_T)m_vchi_instance;
	238
	239	m_vchi_connection = vchi_create_connection(single_get_func_table(),
	240	vchi_mphi_message_driver_func_table());
	241
	242	if ((iResult = vchi_connect(&m_vchi_connection, 1, m_vchi_instance)) != VCHIQ_SUCCESS)
	243	{
	244	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchi_connect failed (%d)", __FUNCTION__, iResult);
	245	CStdString strError;
	246	strError.Format("%s - vchi_connect failed (%d)", __FUNCTION__, iResult);
	247	m_strError = strError;
	248	return iResult;
	249	}
	250	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchi_connect succeeded", __FUNCTION__);
	251
	252	return VCHIQ_SUCCESS;
	253	}
	254
	255	bool CRPiCECAdapterCommunication::Open(uint32_t iTimeoutMs /* = CEC_DEFAULT_CONNECT_TIMEOUT /, bool UNUSED(bSkipChecks) / = false */, bool bStartListening)
	256	{
	257	Close();
	258
	259	if (InitHostCEC() != VCHIQ_SUCCESS)
	260	return false;
	261
	262	if (bStartListening)
	263	{
	264	// enable passive mode
	265	vc_cec_set_passive(true);
	266
	267	// register the callback
	268	vc_cec_register_callback(((CECSERVICE_CALLBACK_T)rpi_cec_callback), (void*)this);
269
270	// release previous LA
271	vc_cec_release_logical_address();
272	if (!m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged, iTimeoutMs))
273	{
274	LIB_CEC->AddLog(CEC_LOG_ERROR, "failed to release the previous LA");
275	return false;
276	}
277
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__);
380	m_bLogicalAddressChanged = false;
381
382	vc_cec_release_logical_address();
383
384	return m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged);
385	}
386
387	bool CRPiCECAdapterCommunication::RegisterLogicalAddress(const cec_logical_address address)
388	{
389	{
390	CLockObject lock(m_mutex);
391	if (m_logicalAddress == address)
392	return true;
393	}
394
395	if (!UnregisterLogicalAddress())
396	return false;
397
398	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - registering address %x", __FUNCTION__, address);
399
400	CLockObject lock(m_mutex);
401	m_bLogicalAddressChanged = false;
402	vc_cec_poll_address((CEC_AllDevices_T)address);
403
404	// register the new LA
405	int iRetval = vc_cec_set_logical_address((CEC_AllDevices_T)address, (CEC_DEVICE_TYPE_T)CCECTypeUtils::GetType(address), CEC_VENDOR_ID_BROADCOM);
406	if (iRetval != VCHIQ_SUCCESS)
407	{
408	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);
409	return false;
410	}
411
412	return m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged);
413	}
414
415	cec_logical_addresses CRPiCECAdapterCommunication::GetLogicalAddresses(void)
416	{
417	cec_logical_addresses addresses; addresses.Clear();
418	cec_logical_address current = GetLogicalAddress();
419	if (current != CECDEVICE_UNKNOWN)
420	addresses.Set(current);
421
422	return addresses;
423	}
424
425	bool CRPiCECAdapterCommunication::SetLogicalAddresses(const cec_logical_addresses &addresses)
426	{
427	// the current generation RPi only supports 1 LA, so just ensure that the primary address is registered
428	return SupportsSourceLogicalAddress(addresses.primary) &&
429	RegisterLogicalAddress(addresses.primary);
430	}
431
432	void CRPiCECAdapterCommunication::InitHost(void)
433	{
434	if (!g_bHostInited)
435	{
436	g_bHostInited = true;
437	bcm_host_init();
438	}
439	}
440
441	#endif