[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:
  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);
      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;

      // 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),
171c7eb0	64	m_bLogicalAddressChanged(false)
29104708 LOK	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:
3b106c7d	145	case VC_CEC_REMOTE_PRESSED:
29104708 LOK	146	{
	147	// translate into a cec_command
	148	cec_command command;
3b106c7d LOK	149	cec_command::Format(command,
	150	(cec_logical_address)CEC_CB_INITIATOR(p0),
	151	(cec_logical_address)CEC_CB_FOLLOWER(p0),
	152	reason == VC_CEC_BUTTON_PRESSED ? CEC_OPCODE_USER_CONTROL_PRESSED : CEC_OPCODE_VENDOR_REMOTE_BUTTON_DOWN);
29104708 LOK	153	command.parameters.PushBack((uint8_t)CEC_CB_OPERAND1(p0));
	154
	155	// send to libCEC
	156	m_callback->OnCommandReceived(command);
	157	}
	158	break;
	159	case VC_CEC_BUTTON_RELEASE:
3b106c7d	160	case VC_CEC_REMOTE_RELEASE:
29104708 LOK	161	{
	162	// translate into a cec_command
	163	cec_command command;
3b106c7d LOK	164	cec_command::Format(command,
	165	(cec_logical_address)CEC_CB_INITIATOR(p0),
	166	(cec_logical_address)CEC_CB_FOLLOWER(p0),
	167	reason == VC_CEC_BUTTON_PRESSED ? CEC_OPCODE_USER_CONTROL_RELEASE : CEC_OPCODE_VENDOR_REMOTE_BUTTON_UP);
29104708 LOK	168	command.parameters.PushBack((uint8_t)CEC_CB_OPERAND1(p0));
	169
	170	// send to libCEC
	171	m_callback->OnCommandReceived(command);
	172	}
	173	break;
	174	case VC_CEC_LOGICAL_ADDR:
	175	{
	176	CLockObject lock(m_mutex);
	177	if (CEC_CB_RC(header) == VCHIQ_SUCCESS)
	178	{
	179	m_bLogicalAddressChanged = true;
	180	m_logicalAddress = (cec_logical_address)(p0 & 0xF);
	181	LIB_CEC->AddLog(CEC_LOG_DEBUG, "logical address changed to %s (%x)", LIB_CEC->ToString(m_logicalAddress), m_logicalAddress);
	182	}
	183	else
	184	{
	185	m_logicalAddress = CECDEVICE_BROADCAST;
	186	LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to change the logical address, reset to %s (%x)", LIB_CEC->ToString(m_logicalAddress), m_logicalAddress);
	187	}
	188	m_logicalAddressCondition.Signal();
	189	}
	190	break;
7d27bafc LOK	191	case VC_CEC_LOGICAL_ADDR_LOST:
	192	{
	193	// the logical address was taken by another device
	194	cec_logical_address previousAddress = m_logicalAddress;
	195	m_logicalAddress = CECDEVICE_UNKNOWN;
f60ee8b3	196
40119e0c LOK	197	// notify libCEC that we lost our LA when the connection was initialised
	198	if (m_bInitialised)
	199	m_callback->HandleLogicalAddressLost(previousAddress);
7d27bafc LOK	200	}
7d27bafc LOK	201	break;
29104708	202	case VC_CEC_TOPOLOGY:
29104708 LOK	203	break;
	204	default:
	205	LIB_CEC->AddLog(CEC_LOG_DEBUG, "ignoring unknown reason %x", reason);
	206	break;
	207	}
	208	}
	209
	210	int CRPiCECAdapterCommunication::InitHostCEC(void)
	211	{
	212	VCHIQ_INSTANCE_T vchiq_instance;
	213	int iResult;
	214
	215	if ((iResult = vchiq_initialise(&vchiq_instance)) != VCHIQ_SUCCESS)
	216	{
	217	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchiq_initialise failed (%d)", __FUNCTION__, iResult);
	218	CStdString strError;
	219	strError.Format("%s - vchiq_initialise failed (%d)", __FUNCTION__, iResult);
	220	m_strError = strError;
	221	return iResult;
	222	}
	223	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchiq_initialise succeeded", __FUNCTION__);
	224
	225	if ((iResult = vchi_initialise(&m_vchi_instance)) != VCHIQ_SUCCESS)
	226	{
	227	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchi_initialise failed (%d)", __FUNCTION__, iResult);
	228	CStdString strError;
	229	strError.Format("%s - vchi_initialise failed (%d)", __FUNCTION__, iResult);
	230	m_strError = strError;
	231	return iResult;
	232	}
	233	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchi_initialise succeeded", __FUNCTION__);
	234
	235	vchiq_instance = (VCHIQ_INSTANCE_T)m_vchi_instance;
	236
	237	m_vchi_connection = vchi_create_connection(single_get_func_table(),
	238	vchi_mphi_message_driver_func_table());
	239
	240	if ((iResult = vchi_connect(&m_vchi_connection, 1, m_vchi_instance)) != VCHIQ_SUCCESS)
	241	{
	242	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vchi_connect failed (%d)", __FUNCTION__, iResult);
	243	CStdString strError;
	244	strError.Format("%s - vchi_connect failed (%d)", __FUNCTION__, iResult);
	245	m_strError = strError;
	246	return iResult;
	247	}
	248	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vchi_connect succeeded", __FUNCTION__);
	249
	250	return VCHIQ_SUCCESS;
	251	}
	252
	253	bool CRPiCECAdapterCommunication::Open(uint32_t iTimeoutMs /* = CEC_DEFAULT_CONNECT_TIMEOUT /, bool UNUSED(bSkipChecks) / = false */, bool bStartListening)
	254	{
	255	Close();
	256
	257	if (InitHostCEC() != VCHIQ_SUCCESS)
	258	return false;
	259
	260	if (bStartListening)
	261	{
	262	// enable passive mode
	263	vc_cec_set_passive(true);
	264
	265	// register the callback
	266	vc_cec_register_callback(((CECSERVICE_CALLBACK_T)rpi_cec_callback), (void*)this);
267
268	// release previous LA
269	vc_cec_release_logical_address();
270	if (!m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged, iTimeoutMs))
271	{
272	LIB_CEC->AddLog(CEC_LOG_ERROR, "failed to release the previous LA");
273	return false;
274	}
275
276	// register LA "freeuse"
277	if (RegisterLogicalAddress(CECDEVICE_FREEUSE))
278	{
279	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - vc_cec initialised", __FUNCTION__);
280	CLockObject lock(m_mutex);
281	m_bInitialised = true;
282	}
283	else
284	LIB_CEC->AddLog(CEC_LOG_ERROR, "%s - vc_cec could not be initialised", __FUNCTION__);
285	}
286
287	return true;
288	}
289
290	uint16_t CRPiCECAdapterCommunication::GetPhysicalAddress(void)
291	{
292	uint16_t iPA(CEC_INVALID_PHYSICAL_ADDRESS);
293	if (!IsInitialised())
294	return iPA;
295
296	if (vc_cec_get_physical_address(&iPA) == VCHIQ_SUCCESS)
297	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - physical address = %04x", __FUNCTION__, iPA);
298	else
299	{
300	LIB_CEC->AddLog(CEC_LOG_WARNING, "%s - failed to get the physical address", __FUNCTION__);
301	iPA = CEC_INVALID_PHYSICAL_ADDRESS;
302	}
303
304	return iPA;
305	}
306
307	void CRPiCECAdapterCommunication::Close(void)
308	{
309	{
310	CLockObject lock(m_mutex);
311	if (m_bInitialised)
312	m_bInitialised = false;
313	else
314	return;
315	}
316	UnregisterLogicalAddress();
317
318	// disable passive mode
319	vc_cec_set_passive(false);
320
321	if (!g_bHostInited)
322	{
323	g_bHostInited = false;
324	bcm_host_deinit();
325	}
326	}
327
328	std::string CRPiCECAdapterCommunication::GetError(void) const
329	{
330	std::string strError(m_strError);
331	return strError;
332	}
333
334	cec_adapter_message_state CRPiCECAdapterCommunication::Write(const cec_command &data, bool &UNUSED(bRetry), uint8_t UNUSED(iLineTimeout), bool bIsReply)
335	{
336	// ensure that the source LA is registered
337	if (!RegisterLogicalAddress(data.initiator))
338	{
339	LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to register logical address %s (%X)", CCECTypeUtils::ToString(data.initiator), data.initiator);
340	return (data.initiator == data.destination) ? ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED : ADAPTER_MESSAGE_STATE_ERROR;
341	}
342
343	if (!data.opcode_set && data.initiator == data.destination)
344	{
345	// registration of the logical address would have failed
346	return ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED;
347	}
348
349	return m_queue->Write(data, bIsReply) ? ADAPTER_MESSAGE_STATE_SENT_ACKED : ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED;
350	}
351
352	uint16_t CRPiCECAdapterCommunication::GetFirmwareVersion(void)
353	{
354	return VC_CECSERVICE_VER;
355	}
356
357	cec_logical_address CRPiCECAdapterCommunication::GetLogicalAddress(void)
358	{
359	{
360	CLockObject lock(m_mutex);
361	if (m_logicalAddress != CECDEVICE_UNKNOWN)
362	return m_logicalAddress;
363	}
364
365	CEC_AllDevices_T address;
366	return (vc_cec_get_logical_address(&address) == VCHIQ_SUCCESS) ?
367	(cec_logical_address)address : CECDEVICE_UNKNOWN;
368	}
369
370	bool CRPiCECAdapterCommunication::UnregisterLogicalAddress(void)
371	{
372	CLockObject lock(m_mutex);
373	if (m_logicalAddress == CECDEVICE_UNKNOWN \|\|
374	m_logicalAddress == CECDEVICE_BROADCAST)
375	return true;
376
377	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - releasing previous logical address", __FUNCTION__);
378	m_bLogicalAddressChanged = false;
379
380	vc_cec_release_logical_address();
381
382	return m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged);
383	}
384
385	bool CRPiCECAdapterCommunication::RegisterLogicalAddress(const cec_logical_address address)
386	{
387	{
388	CLockObject lock(m_mutex);
389	if (m_logicalAddress == address)
390	return true;
391	}
392
393	if (!UnregisterLogicalAddress())
394	return false;
395
396	LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s - registering address %x", __FUNCTION__, address);
397
398	CLockObject lock(m_mutex);
399	m_bLogicalAddressChanged = false;
400	vc_cec_poll_address((CEC_AllDevices_T)address);
401
402	// register the new LA
403	int iRetval = vc_cec_set_logical_address((CEC_AllDevices_T)address, (CEC_DEVICE_TYPE_T)CCECTypeUtils::GetType(address), CEC_VENDOR_ID_BROADCOM);
404	if (iRetval != VCHIQ_SUCCESS)
405	{
406	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);
407	return false;
408	}
409
410	return m_logicalAddressCondition.Wait(m_mutex, m_bLogicalAddressChanged);
411	}
412
413	cec_logical_addresses CRPiCECAdapterCommunication::GetLogicalAddresses(void)
414	{
415	cec_logical_addresses addresses; addresses.Clear();
416	cec_logical_address current = GetLogicalAddress();
417	if (current != CECDEVICE_UNKNOWN)
418	addresses.Set(current);
419
420	return addresses;
421	}
422
423	bool CRPiCECAdapterCommunication::SetLogicalAddresses(const cec_logical_addresses &addresses)
424	{
425	// the current generation RPi only supports 1 LA, so just ensure that the primary address is registered
426	return SupportsSourceLogicalAddress(addresses.primary) &&
427	RegisterLogicalAddress(addresses.primary);
428	}
429
430	void CRPiCECAdapterCommunication::InitHost(void)
431	{
432	if (!g_bHostInited)
433	{
434	g_bHostInited = true;
435	bcm_host_init();
436	}
437	}
438
439	#endif