[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);
}

// callback for the TV service
void rpi_tv_callback(void *callback_data, uint32_t reason, uint32_t p0, uint32_t p1)
{
  if (callback_data)
    static_cast<CRPiCECAdapterCommunication *>(callback_data)->OnTVServiceCallback(reason, p0, p1);
}

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::OnTVServiceCallback(uint32_t reason, uint32_t UNUSED(p0), uint32_t UNUSED(p1))
{
  switch(reason)
  {
  case VC_HDMI_UNPLUGGED:
  {
    m_callback->HandlePhysicalAddressChanged(0x1000);
    break;
  }
  case VC_HDMI_ATTACHED:
  {
    uint16_t iNewAddress = GetPhysicalAddress();
    m_callback->HandlePhysicalAddressChanged(iNewAddress);
    break;
  }
  case VC_HDMI_DVI:
  case VC_HDMI_HDMI:
  case VC_HDMI_HDCP_UNAUTH:
  case VC_HDMI_HDCP_AUTH:
  case VC_HDMI_HDCP_KEY_DOWNLOAD:
  case VC_HDMI_HDCP_SRM_DOWNLOAD:
  default:
     break;
  }
}

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 UNUSED(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 callbacks
    vc_cec_register_callback(rpi_cec_callback, (void*)this);
    vc_tv_register_callback(rpi_tv_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;
  }
  vc_tv_unregister_callback(rpi_tv_callback);

  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
49ba42d4 LOK	61	// callback for the TV service
	62	void rpi_tv_callback(void *callback_data, uint32_t reason, uint32_t p0, uint32_t p1)
	63	{
	64	if (callback_data)
	65	static_cast<CRPiCECAdapterCommunication *>(callback_data)->OnTVServiceCallback(reason, p0, p1);
	66	}
	67
29104708 LOK	68	CRPiCECAdapterCommunication::CRPiCECAdapterCommunication(IAdapterCommunicationCallback *callback) :
	69	IAdapterCommunication(callback),
	70	m_logicalAddress(CECDEVICE_UNKNOWN),
d1a2ed70	71	m_bLogicalAddressChanged(false),
057497c6 LOK	72	m_previousLogicalAddress(CECDEVICE_FREEUSE),
057497c6 LOK	73	m_bLogicalAddressRegistered(false)
29104708 LOK	74	{
	75	m_queue = new CRPiCECAdapterMessageQueue(this);
	76	}
	77
	78	CRPiCECAdapterCommunication::~CRPiCECAdapterCommunication(void)
	79	{
	80	delete(m_queue);
	81	Close();
	82	}
	83
	84	const char *ToString(const VC_CEC_ERROR_T error)
	85	{
	86	switch(error)
	87	{
	88	case VC_CEC_SUCCESS:
	89	return "success";
	90	case VC_CEC_ERROR_NO_ACK:
	91	return "no ack";
	92	case VC_CEC_ERROR_SHUTDOWN:
	93	return "shutdown";
	94	case VC_CEC_ERROR_BUSY:
	95	return "device is busy";
	96	case VC_CEC_ERROR_NO_LA:
	97	return "no logical address";
	98	case VC_CEC_ERROR_NO_PA:
	99	return "no physical address";
	100	case VC_CEC_ERROR_NO_TOPO:
	101	return "no topology";
	102	case VC_CEC_ERROR_INVALID_FOLLOWER:
	103	return "invalid follower";
	104	case VC_CEC_ERROR_INVALID_ARGUMENT:
	105	return "invalid arg";
	106	default:
	107	return "unknown";
	108	}
	109	}
	110
	111	bool CRPiCECAdapterCommunication::IsInitialised(void)
	112	{
	113	CLockObject lock(m_mutex);
	114	return m_bInitialised;
	115	}
	116
49ba42d4 LOK	117	void CRPiCECAdapterCommunication::OnTVServiceCallback(uint32_t reason, uint32_t UNUSED(p0), uint32_t UNUSED(p1))
	118	{
	119	switch(reason)
	120	{
	121	case VC_HDMI_UNPLUGGED:
	122	{
	123	m_callback->HandlePhysicalAddressChanged(0x1000);
	124	break;
	125	}
	126	case VC_HDMI_ATTACHED:
	127	{
	128	uint16_t iNewAddress = GetPhysicalAddress();
	129	m_callback->HandlePhysicalAddressChanged(iNewAddress);
	130	break;
	131	}
	132	case VC_HDMI_DVI:
	133	case VC_HDMI_HDMI:
	134	case VC_HDMI_HDCP_UNAUTH:
	135	case VC_HDMI_HDCP_AUTH:
	136	case VC_HDMI_HDCP_KEY_DOWNLOAD:
	137	case VC_HDMI_HDCP_SRM_DOWNLOAD:
	138	default:
	139	break;
	140	}
	141	}
	142
29104708 LOK	143	void CRPiCECAdapterCommunication::OnDataReceived(uint32_t header, uint32_t p0, uint32_t p1, uint32_t p2, uint32_t p3)
	144	{
	145	VC_CEC_NOTIFY_T reason = (VC_CEC_NOTIFY_T)CEC_CB_REASON(header);
	146
b509ba1a	147	#ifdef CEC_DEBUGGING
29104708	148	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	149	#endif
29104708 LOK	150
	151	switch (reason)
	152	{
	153	case VC_CEC_RX:
	154	// CEC data received
	155	{
	156	// translate into a VC_CEC_MESSAGE_T
	157	VC_CEC_MESSAGE_T message;
	158	vc_cec_param2message(header, p0, p1, p2, p3, &message);
	159
	160	// translate to a cec_command
	161	cec_command command;
	162	cec_command::Format(command,
	163	(cec_logical_address)message.initiator,
	164	(cec_logical_address)message.follower,
	165	(cec_opcode)CEC_CB_OPCODE(p0));
	166
	167	// copy parameters
	168	for (uint8_t iPtr = 1; iPtr < message.length; iPtr++)
	169	command.PushBack(message.payload[iPtr]);
	170
	171	// send to libCEC
	172	m_callback->OnCommandReceived(command);
	173	}
	174	break;
	175	case VC_CEC_TX:
	176	{
	177	// handle response to a command that was sent earlier
	178	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));
	179	}
	180	break;
	181	case VC_CEC_BUTTON_PRESSED:
3b106c7d	182	case VC_CEC_REMOTE_PRESSED:
29104708 LOK	183	{
	184	// translate into a cec_command
	185	cec_command command;
3b106c7d LOK	186	cec_command::Format(command,
	187	(cec_logical_address)CEC_CB_INITIATOR(p0),
	188	(cec_logical_address)CEC_CB_FOLLOWER(p0),
	189	reason == VC_CEC_BUTTON_PRESSED ? CEC_OPCODE_USER_CONTROL_PRESSED : CEC_OPCODE_VENDOR_REMOTE_BUTTON_DOWN);
29104708 LOK	190	command.parameters.PushBack((uint8_t)CEC_CB_OPERAND1(p0));
	191
	192	// send to libCEC
	193	m_callback->OnCommandReceived(command);
	194	}
	195	break;
	196	case VC_CEC_BUTTON_RELEASE:
3b106c7d	197	case VC_CEC_REMOTE_RELEASE:
29104708 LOK	198	{
	199	// translate into a cec_command
	200	cec_command command;
3b106c7d LOK	201	cec_command::Format(command,
	202	(cec_logical_address)CEC_CB_INITIATOR(p0),
	203	(cec_logical_address)CEC_CB_FOLLOWER(p0),
	204	reason == VC_CEC_BUTTON_PRESSED ? CEC_OPCODE_USER_CONTROL_RELEASE : CEC_OPCODE_VENDOR_REMOTE_BUTTON_UP);
29104708 LOK	205	command.parameters.PushBack((uint8_t)CEC_CB_OPERAND1(p0));
	206
	207	// send to libCEC
	208	m_callback->OnCommandReceived(command);
	209	}
	210	break;
	211	case VC_CEC_LOGICAL_ADDR:
	212	{
	213	CLockObject lock(m_mutex);
d1a2ed70	214	m_previousLogicalAddress = m_logicalAddress;
29104708 LOK	215	if (CEC_CB_RC(header) == VCHIQ_SUCCESS)
	216	{
	217	m_bLogicalAddressChanged = true;
	218	m_logicalAddress = (cec_logical_address)(p0 & 0xF);
	219	LIB_CEC->AddLog(CEC_LOG_DEBUG, "logical address changed to %s (%x)", LIB_CEC->ToString(m_logicalAddress), m_logicalAddress);
	220	}
	221	else
	222	{
d1a2ed70	223	m_logicalAddress = CECDEVICE_FREEUSE;
29104708 LOK	224	LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to change the logical address, reset to %s (%x)", LIB_CEC->ToString(m_logicalAddress), m_logicalAddress);
	225	}
	226	m_logicalAddressCondition.Signal();
	227	}
	228	break;
7d27bafc LOK	229	case VC_CEC_LOGICAL_ADDR_LOST:
	230	{
	231	// the logical address was taken by another device
d1a2ed70	232	cec_logical_address previousAddress = m_logicalAddress == CECDEVICE_BROADCAST ? m_previousLogicalAddress : m_logicalAddress;
7d27bafc	233	m_logicalAddress = CECDEVICE_UNKNOWN;
f60ee8b3	234
40119e0c	235	// notify libCEC that we lost our LA when the connection was initialised
057497c6 LOK	236	bool bNotify(false);
	237	{
	238	CLockObject lock(m_mutex);
	239	bNotify = m_bInitialised && m_bLogicalAddressRegistered;
	240	}
	241	if (bNotify)
40119e0c	242	m_callback->HandleLogicalAddressLost(previousAddress);
7d27bafc LOK	243	}
7d27bafc LOK	244	break;
29104708	245	case VC_CEC_TOPOLOGY:
29104708 LOK	246	break;
	247	default:
	248	LIB_CEC->AddLog(CEC_LOG_DEBUG, "ignoring unknown reason %x", reason);
	249	break;
	250	}
	251	}
	252
	253	int CRPiCECAdapterCommunication::InitHostCEC(void)
	254	{
	255	VCHIQ_INSTANCE_T vchiq_instance;
	256	int iResult;
	257
	258	if ((iResult = vchiq_initialise(&vchiq_instance)) != VCHIQ_SUCCESS)
	259	{
	260	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchiq_initialise failed (%d)", __FUNCTION__, iResult);
	261	CStdString strError;
	262	strError.Format("%s - vchiq_initialise failed (%d)", __FUNCTION__, iResult);
	263	m_strError = strError;
	264	return iResult;
	265	}
	266	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchiq_initialise succeeded", __FUNCTION__);
	267
	268	if ((iResult = vchi_initialise(&m_vchi_instance)) != VCHIQ_SUCCESS)
	269	{
	270	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchi_initialise failed (%d)", __FUNCTION__, iResult);
	271	CStdString strError;
	272	strError.Format("%s - vchi_initialise failed (%d)", __FUNCTION__, iResult);
	273	m_strError = strError;
	274	return iResult;
	275	}
	276	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchi_initialise succeeded", __FUNCTION__);
	277
	278	vchiq_instance = (VCHIQ_INSTANCE_T)m_vchi_instance;
	279
	280	m_vchi_connection = vchi_create_connection(single_get_func_table(),
	281	vchi_mphi_message_driver_func_table());
	282
	283	if ((iResult = vchi_connect(&m_vchi_connection, 1, m_vchi_instance)) != VCHIQ_SUCCESS)
	284	{
	285	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchi_connect failed (%d)", __FUNCTION__, iResult);
	286	CStdString strError;
	287	strError.Format("%s - vchi_connect failed (%d)", __FUNCTION__, iResult);
	288	m_strError = strError;
	289	return iResult;
	290	}
	291	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchi_connect succeeded", __FUNCTION__);
	292
	293	return VCHIQ_SUCCESS;
	294	}
	295
49ba42d4	296	bool CRPiCECAdapterCommunication::Open(uint32_t UNUSED(iTimeoutMs) /* = CEC_DEFAULT_CONNECT_TIMEOUT /, bool UNUSED(bSkipChecks) / = false */, bool bStartListening)
29104708 LOK	297	{
	298	Close();
	299
	300	if (InitHostCEC() != VCHIQ_SUCCESS)
	301	return false;
	302
	303	if (bStartListening)
	304	{
	305	// enable passive mode
	306	vc_cec_set_passive(true);
	307
49ba42d4 LOK	308	// register the callbacks
	309	vc_cec_register_callback(rpi_cec_callback, (void*)this);
	310	vc_tv_register_callback(rpi_tv_callback, (void*)this);
29104708	311
29104708 LOK	312	// register LA "freeuse"
	313	if (RegisterLogicalAddress(CECDEVICE_FREEUSE))
	314	{
	315	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vc_cec initialised", __FUNCTION__);
	316	CLockObject lock(m_mutex);
	317	m_bInitialised = true;
	318	}
	319	else
	320	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vc_cec could not be initialised", __FUNCTION__);
	321	}
	322
	323	return true;
	324	}
	325
	326	uint16_t CRPiCECAdapterCommunication::GetPhysicalAddress(void)
	327	{
	328	uint16_t iPA(CEC_INVALID_PHYSICAL_ADDRESS);
	329	if (!IsInitialised())
	330	return iPA;
	331
	332	if (vc_cec_get_physical_address(&iPA) == VCHIQ_SUCCESS)
	333	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - physical address = %04x", __FUNCTION__, iPA);
	334	else
	335	{
	336	LIB_CEC->AddLog(CEC_LOG_WARNING, "%s - failed to get the physical address", __FUNCTION__);
	337	iPA = CEC_INVALID_PHYSICAL_ADDRESS;
	338	}
	339
	340	return iPA;
	341	}
	342
	343	void CRPiCECAdapterCommunication::Close(void)
	344	{
	345	{
	346	CLockObject lock(m_mutex);
	347	if (m_bInitialised)
	348	m_bInitialised = false;
	349	else
	350	return;
	351	}
49ba42d4 LOK	352	vc_tv_unregister_callback(rpi_tv_callback);
49ba42d4 LOK	353
29104708 LOK	354	UnregisterLogicalAddress();
	355
	356	// disable passive mode
	357	vc_cec_set_passive(false);
	358
	359	if (!g_bHostInited)
	360	{
	361	g_bHostInited = false;
	362	bcm_host_deinit();
	363	}
	364	}
	365
	366	std::string CRPiCECAdapterCommunication::GetError(void) const
	367	{
	368	std::string strError(m_strError);
	369	return strError;
	370	}
	371
	372	cec_adapter_message_state CRPiCECAdapterCommunication::Write(const cec_command &data, bool &UNUSED(bRetry), uint8_t UNUSED(iLineTimeout), bool bIsReply)
	373	{
	374	// ensure that the source LA is registered
	375	if (!RegisterLogicalAddress(data.initiator))
	376	{
	377	LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to register logical address %s (%X)", CCECTypeUtils::ToString(data.initiator), data.initiator);
	378	return (data.initiator == data.destination) ? ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED : ADAPTER_MESSAGE_STATE_ERROR;
	379	}
	380
	381	if (!data.opcode_set && data.initiator == data.destination)
	382	{
	383	// registration of the logical address would have failed
	384	return ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED;
	385	}
	386
	387	return m_queue->Write(data, bIsReply) ? ADAPTER_MESSAGE_STATE_SENT_ACKED : ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED;
	388	}
	389
	390	uint16_t CRPiCECAdapterCommunication::GetFirmwareVersion(void)
	391	{
	392	return VC_CECSERVICE_VER;
	393	}
	394
	395	cec_logical_address CRPiCECAdapterCommunication::GetLogicalAddress(void)
	396	{
	397	{
	398	CLockObject lock(m_mutex);
	399	if (m_logicalAddress != CECDEVICE_UNKNOWN)
	400	return m_logicalAddress;
	401	}
	402
	403	CEC_AllDevices_T address;
	404	return (vc_cec_get_logical_address(&address) == VCHIQ_SUCCESS) ?
	405	(cec_logical_address)address : CECDEVICE_UNKNOWN;
	406	}
	407
	408	bool CRPiCECAdapterCommunication::UnregisterLogicalAddress(void)
	409	{
	410	CLockObject lock(m_mutex);
	411	if (m_logicalAddress == CECDEVICE_UNKNOWN \|\|
	412	m_logicalAddress == CECDEVICE_BROADCAST)
	413	return true;
	414
	415	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - releasing previous logical address", __FUNCTION__);
057497c6 LOK	416	{
	417	CLockObject lock(m_mutex);
	418	m_bLogicalAddressRegistered = false;
	419	m_bLogicalAddressChanged = false;
	420	}
29104708 LOK	421
	422	vc_cec_release_logical_address();
	423
	424	return m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged);
	425	}
	426
	427	bool CRPiCECAdapterCommunication::RegisterLogicalAddress(const cec_logical_address address)
	428	{
	429	{
	430	CLockObject lock(m_mutex);
	431	if (m_logicalAddress == address)
	432	return true;
	433	}
	434
	435	if (!UnregisterLogicalAddress())
	436	return false;
	437
	438	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - registering address %x", __FUNCTION__, address);
	439
	440	CLockObject lock(m_mutex);
	441	m_bLogicalAddressChanged = false;
	442	vc_cec_poll_address((CEC_AllDevices_T)address);
	443
	444	// register the new LA
	445	int iRetval = vc_cec_set_logical_address((CEC_AllDevices_T)address, (CEC_DEVICE_TYPE_T)CCECTypeUtils::GetType(address), CEC_VENDOR_ID_BROADCOM);
	446	if (iRetval != VCHIQ_SUCCESS)
	447	{
	448	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);
	449	return false;
	450	}
	451
057497c6 LOK	452	if (m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged))
	453	{
	454	m_bLogicalAddressRegistered = true;
	455	return true;
	456	}
	457	return false;
29104708 LOK	458	}
	459
	460	cec_logical_addresses CRPiCECAdapterCommunication::GetLogicalAddresses(void)
	461	{
	462	cec_logical_addresses addresses; addresses.Clear();
	463	cec_logical_address current = GetLogicalAddress();
	464	if (current != CECDEVICE_UNKNOWN)
	465	addresses.Set(current);
	466
	467	return addresses;
	468	}
	469
	470	bool CRPiCECAdapterCommunication::SetLogicalAddresses(const cec_logical_addresses &addresses)
	471	{
	472	// the current generation RPi only supports 1 LA, so just ensure that the primary address is registered
	473	return SupportsSourceLogicalAddress(addresses.primary) &&
	474	RegisterLogicalAddress(addresses.primary);
	475	}
	476
	477	void CRPiCECAdapterCommunication::InitHost(void)
	478	{
	479	if (!g_bHostInited)
	480	{
	481	g_bHostInited = true;
	482	bcm_host_init();
	483	}
	484	}
	485
	486	#endif