CUSBCECAdapterCommunication::CUSBCECAdapterCommunication(CCECProcessor *processor, const char *strPort, uint16_t iBaudRate /* = 38400 */) :
m_port(NULL),
m_processor(processor),
+ m_bHasData(false),
m_iLineTimeout(0),
m_iFirmwareVersion(CEC_FW_VERSION_UNKNOWN),
m_lastInitiator(CECDEVICE_UNKNOWN),
CUSBCECAdapterCommunication::~CUSBCECAdapterCommunication(void)
{
Close();
-
- if (m_port)
- {
- delete m_port;
- m_port = NULL;
- }
}
-bool CUSBCECAdapterCommunication::Open(uint32_t iTimeoutMs /* = 10000 */)
+bool CUSBCECAdapterCommunication::CheckAdapter(uint32_t iTimeoutMs /* = 10000 */)
{
+ bool bReturn(false);
uint64_t iNow = GetTimeMs();
- uint64_t iTimeout = iNow + iTimeoutMs;
-
- CLockObject lock(m_mutex);
+ uint64_t iTarget = iTimeoutMs > 0 ? iNow + iTimeoutMs : iNow + CEC_DEFAULT_TRANSMIT_WAIT;
- if (!m_port)
+ /* try to ping the adapter */
+ bool bPinged(false);
+ unsigned iPingTry(0);
+ while (iNow < iTarget && (bPinged = PingAdapter()) == false)
{
- CLibCEC::AddLog(CEC_LOG_ERROR, "port is NULL");
- return false;
+ CLibCEC::AddLog(CEC_LOG_ERROR, "the adapter did not respond correctly to a ping (try %d)", ++iPingTry);
+ Sleep(500);
+ iNow = GetTimeMs();
}
- if (IsOpen())
+ /* try to read the firmware version */
+ m_iFirmwareVersion = CEC_FW_VERSION_UNKNOWN;
+ unsigned iFwVersionTry(0);
+ while (bPinged && iNow < iTarget && (m_iFirmwareVersion = GetFirmwareVersion()) == CEC_FW_VERSION_UNKNOWN)
{
- CLibCEC::AddLog(CEC_LOG_ERROR, "port is already open");
- return true;
+ CLibCEC::AddLog(CEC_LOG_ERROR, "the adapter did not respond with a correct firmware version (try %d)", ++iFwVersionTry);
+ Sleep(500);
+ iNow = GetTimeMs();
}
- CStdString strError;
- bool bConnected(false);
- while (!bConnected && iNow < iTimeout)
+ if (m_iFirmwareVersion >= 2)
{
- if ((bConnected = m_port->Open(iTimeout)) == false)
+ /* try to set controlled mode */
+ unsigned iControlledTry(0);
+ bool bControlled(false);
+ while (iNow < iTarget && (bControlled = SetControlledMode(true)) == false)
{
- strError.Format("error opening serial port '%s': %s", m_port->GetName().c_str(), m_port->GetError().c_str());
- Sleep(250);
+ CLibCEC::AddLog(CEC_LOG_ERROR, "the adapter did not respond correctly to setting controlled mode (try %d)", ++iControlledTry);
+ Sleep(500);
iNow = GetTimeMs();
}
+ bReturn = bControlled;
}
+ else
+ bReturn = true;
- if (!bConnected)
- {
- CLibCEC::AddLog(CEC_LOG_ERROR, strError);
- return false;
- }
+ return bReturn;
+}
- CLibCEC::AddLog(CEC_LOG_DEBUG, "connection opened, clearing any previous input and waiting for active transmissions to end before starting");
+bool CUSBCECAdapterCommunication::Open(IAdapterCommunicationCallback *cb, uint32_t iTimeoutMs /* = 10000 */)
+{
+ uint64_t iNow = GetTimeMs();
+ uint64_t iTimeout = iNow + iTimeoutMs;
- //clear any input bytes
- uint8_t buff[1024];
- while (m_port->Read(buff, 1024, 100) > 0)
{
- CLibCEC::AddLog(CEC_LOG_DEBUG, "data received, clearing it");
- Sleep(250);
+ CLockObject lock(m_mutex);
+
+ if (!m_port)
+ {
+ CLibCEC::AddLog(CEC_LOG_ERROR, "port is NULL");
+ return false;
+ }
+
+ if (IsOpen())
+ {
+ CLibCEC::AddLog(CEC_LOG_ERROR, "port is already open");
+ return true;
+ }
+
+ m_callback = cb;
+ CStdString strError;
+ bool bConnected(false);
+ while (!bConnected && iNow < iTimeout)
+ {
+ if ((bConnected = m_port->Open(iTimeout)) == false)
+ {
+ strError.Format("error opening serial port '%s': %s", m_port->GetName().c_str(), m_port->GetError().c_str());
+ Sleep(250);
+ iNow = GetTimeMs();
+ }
+ }
+
+ if (!bConnected)
+ {
+ CLibCEC::AddLog(CEC_LOG_ERROR, strError);
+ return false;
+ }
+
+ CLibCEC::AddLog(CEC_LOG_DEBUG, "connection opened, clearing any previous input and waiting for active transmissions to end before starting");
+
+ //clear any input bytes
+ uint8_t buff[1024];
+ while (m_port->Read(buff, 1024, 100) > 0)
+ {
+ CLibCEC::AddLog(CEC_LOG_DEBUG, "data received, clearing it");
+ Sleep(250);
+ }
}
if (CreateThread())
{
- CLibCEC::AddLog(CEC_LOG_DEBUG, "communication thread started");
- return true;
- }
- else
- {
- CLibCEC::AddLog(CEC_LOG_ERROR, "could not create a communication thread");
+ if (!CheckAdapter())
+ {
+ StopThread();
+ CLibCEC::AddLog(CEC_LOG_ERROR, "the adapter failed to pass basic checks");
+ }
+ else
+ {
+ CLibCEC::AddLog(CEC_LOG_DEBUG, "communication thread started");
+ return true;
+ }
}
+ CLibCEC::AddLog(CEC_LOG_ERROR, "could not create a communication thread");
return false;
}
void CUSBCECAdapterCommunication::Close(void)
{
- CLockObject lock(m_mutex);
- m_rcvCondition.Broadcast();
+ SetAckMask(0);
+ {
+ CLockObject lock(m_mutex);
+ m_bHasData = true;
+ m_rcvCondition.Broadcast();
+ }
StopThread();
}
void *CUSBCECAdapterCommunication::Process(void)
{
+ cec_command command;
+ bool bCommandReceived(false);
while (!IsStopped())
{
- ReadFromDevice(50);
- Sleep(5);
- WriteNextCommand();
+ {
+ CLockObject lock(m_mutex);
+ ReadFromDevice(50);
+ bCommandReceived = m_callback && Read(command, 0);
+ }
+
+ /* push the next command to the callback method if there is one */
+ if (!IsStopped() && bCommandReceived)
+ m_callback->OnCommandReceived(command);
+
+ if (!IsStopped())
+ {
+ Sleep(5);
+ WriteNextCommand();
+ }
}
CCECAdapterMessage *msg(NULL);
if (m_outBuffer.Pop(msg))
- msg->condition.Broadcast();
+ msg->event.Broadcast();
+
+ if (m_port)
+ {
+ delete m_port;
+ m_port = NULL;
+ }
return NULL;
}
cec_adapter_message_state CUSBCECAdapterCommunication::Write(const cec_command &data, uint8_t iMaxTries, uint8_t iLineTimeout /* = 3 */, uint8_t iRetryLineTimeout /* = 3 */)
{
cec_adapter_message_state retVal(ADAPTER_MESSAGE_STATE_UNKNOWN);
+ if (!IsRunning())
+ return retVal;
CCECAdapterMessage *output = new CCECAdapterMessage(data);
bool CUSBCECAdapterCommunication::Write(CCECAdapterMessage *data)
{
- bool bReturn(false);
-
- CLockObject lock(data->mutex);
data->state = ADAPTER_MESSAGE_STATE_WAITING_TO_BE_SENT;
m_outBuffer.Push(data);
- data->condition.Wait(data->mutex);
+ data->event.Wait();
- if (data->state != ADAPTER_MESSAGE_STATE_SENT)
- {
- CLibCEC::AddLog(CEC_LOG_ERROR, "command was not sent");
- }
- else if (data->expectControllerAck)
+ if ((data->expectControllerAck && data->state != ADAPTER_MESSAGE_STATE_SENT_ACKED) ||
+ (!data->expectControllerAck && data->state != ADAPTER_MESSAGE_STATE_SENT))
{
- bReturn = WaitForAck(*data);
- if (bReturn)
- {
- if (data->isTransmission)
- data->state = ADAPTER_MESSAGE_STATE_SENT_ACKED;
- }
- else
- {
- data->state = ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED;
- CLibCEC::AddLog(CEC_LOG_DEBUG, "did not receive ack");
- }
- }
- else
- {
- bReturn = true;
+ CLibCEC::AddLog(CEC_LOG_DEBUG, "command was not %s", data->state == ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED ? "acked" : "sent");
+ return false;
}
- return bReturn;
+ return true;
}
bool CUSBCECAdapterCommunication::Read(cec_command &command, uint32_t iTimeout)
{
+ if (!IsRunning())
+ return false;
+
CCECAdapterMessage msg;
if (Read(msg, iTimeout))
{
if (!m_inBuffer.Pop(buf))
{
- if (!m_rcvCondition.Wait(m_mutex, iTimeout))
+ if (iTimeout == 0 || !m_rcvCondition.Wait(m_mutex, m_bHasData, iTimeout))
return false;
m_inBuffer.Pop(buf);
+ m_bHasData = m_inBuffer.Size() > 0;
}
if (buf)
{
msg.packet = buf->packet;
- msg.state = msg.state = ADAPTER_MESSAGE_STATE_INCOMING;
+ msg.state = ADAPTER_MESSAGE_STATE_INCOMING;
delete buf;
return true;
}
if (iReturn == CEC_FW_VERSION_UNKNOWN)
{
+ CLockObject lock(m_mutex);
CLibCEC::AddLog(CEC_LOG_DEBUG, "requesting the firmware version");
CCECAdapterMessage *output = new CCECAdapterMessage;
output->expectControllerAck = false;
SendMessageToAdapter(output);
+ bool bWriteOk = output->state == ADAPTER_MESSAGE_STATE_SENT;
delete output;
+ if (!bWriteOk)
+ {
+ CLibCEC::AddLog(CEC_LOG_ERROR, "could not request the firmware version");
+ return iReturn;
+ }
+ Sleep(250); // TODO ReadFromDevice() isn't waiting for the timeout to pass on win32
+ ReadFromDevice(CEC_DEFAULT_TRANSMIT_WAIT, 5 /* start + msgcode + 2 bytes for fw version + end */);
CCECAdapterMessage input;
- if (!Read(input, CEC_DEFAULT_TRANSMIT_WAIT) || input.Message() != MSGCODE_FIRMWARE_VERSION || input.Size() != 3)
- CLibCEC::AddLog(CEC_LOG_ERROR, "no or invalid firmware version (size = %d, message = %d)", input.Size(), input.Message());
+ if (Read(input, 0))
+ {
+ if (input.Message() != MSGCODE_FIRMWARE_VERSION || input.Size() != 3)
+ CLibCEC::AddLog(CEC_LOG_ERROR, "invalid firmware version (size = %d, message = %d)", input.Size(), input.Message());
+ else
+ {
+ m_iFirmwareVersion = (input[1] << 8 | input[2]);
+ iReturn = m_iFirmwareVersion;
+ }
+ }
else
{
- m_iFirmwareVersion = (input[1] << 8 | input[2]);
- iReturn = m_iFirmwareVersion;
+ CLibCEC::AddLog(CEC_LOG_ERROR, "no firmware version received");
}
}
bool CUSBCECAdapterCommunication::SetAckMask(uint16_t iMask)
{
bool bReturn(false);
- CStdString strLog;
- strLog.Format("setting ackmask to %2x", iMask);
- CLibCEC::AddLog(CEC_LOG_DEBUG, strLog.c_str());
+ CLibCEC::AddLog(CEC_LOG_DEBUG, "setting ackmask to %2x", iMask);
CCECAdapterMessage *output = new CCECAdapterMessage;
bool CUSBCECAdapterCommunication::SetControlledMode(bool controlled)
{
bool bReturn(false);
- CStdString strLog;
- strLog.Format("turning controlled mode %s", controlled ? "on" : "off");
- CLibCEC::AddLog(CEC_LOG_DEBUG, strLog.c_str());
+ CLibCEC::AddLog(CEC_LOG_DEBUG, "turning controlled mode %s", controlled ? "on" : "off");
CCECAdapterMessage *output = new CCECAdapterMessage;
uint8_t iPacketsLeft(message.Size() / 4);
int64_t iNow = GetTimeMs();
- int64_t iTargetTime = iNow + message.transmit_timeout;
+ int64_t iTargetTime = iNow + (message.transmit_timeout <= 5 ? CEC_DEFAULT_TRANSMIT_WAIT : message.transmit_timeout);
- while (!bTransmitSucceeded && !bError && (message.transmit_timeout == 0 || iNow < iTargetTime))
+ while (!bTransmitSucceeded && !bError && iNow < iTargetTime)
{
+ ReadFromDevice(50);
CCECAdapterMessage msg;
- int32_t iWait = (int32_t)(iTargetTime - iNow);
- if (iWait <= 5 || message.transmit_timeout <= 5)
- iWait = CEC_DEFAULT_TRANSMIT_WAIT;
-
- if (!Read(msg, iWait))
+ if (!Read(msg, 0))
{
iNow = GetTimeMs();
continue;
}
}
+ message.state = bTransmitSucceeded && !bError ?
+ ADAPTER_MESSAGE_STATE_SENT_ACKED :
+ ADAPTER_MESSAGE_STATE_SENT_NOT_ACKED;
+
return bTransmitSucceeded && !bError;
}
m_currentAdapterMessage.Clear();
m_bGotStart = false;
m_bNextIsEscaped = false;
+ m_bHasData = true;
m_rcvCondition.Signal();
}
else if (m_bNextIsEscaped)
}
}
-bool CUSBCECAdapterCommunication::ReadFromDevice(uint32_t iTimeout)
+bool CUSBCECAdapterCommunication::ReadFromDevice(uint32_t iTimeout, size_t iSize /* = 256 */)
{
ssize_t iBytesRead;
uint8_t buff[256];
if (!m_port)
return false;
+ if (iSize > 256)
+ iSize = 256;
CLockObject lock(m_mutex);
- iBytesRead = m_port->Read(buff, sizeof(buff), iTimeout);
+ iBytesRead = m_port->Read(buff, sizeof(uint8_t) * iSize, iTimeout);
if (iBytesRead < 0 || iBytesRead > 256)
{
CLibCEC::AddLog(CEC_LOG_ERROR, "error reading from serial port: %s", m_port->GetError().c_str());
+ StopThread(false);
return false;
}
else if (iBytesRead > 0)
void CUSBCECAdapterCommunication::SendMessageToAdapter(CCECAdapterMessage *msg)
{
CLockObject adapterLock(m_mutex);
- CLockObject lock(msg->mutex);
if (msg->tries == 1)
SetLineTimeout(msg->lineTimeout);
else
if (m_port->Write(msg->packet.data, msg->Size()) != (ssize_t) msg->Size())
{
- CStdString strError;
- strError.Format("error writing to serial port: %s", m_port->GetError().c_str());
- CLibCEC::AddLog(CEC_LOG_ERROR, strError);
+ CLibCEC::AddLog(CEC_LOG_ERROR, "error writing to serial port: %s", m_port->GetError().c_str());
msg->state = ADAPTER_MESSAGE_STATE_ERROR;
}
else
{
CLibCEC::AddLog(CEC_LOG_DEBUG, "command sent");
msg->state = ADAPTER_MESSAGE_STATE_SENT;
+
+ if (msg->expectControllerAck)
+ {
+ if (!WaitForAck(*msg))
+ CLibCEC::AddLog(CEC_LOG_DEBUG, "did not receive ack");
+ }
}
- msg->condition.Signal();
+ msg->event.Signal();
}
void CUSBCECAdapterCommunication::WriteNextCommand(void)
if (m_outBuffer.Pop(msg))
SendMessageToAdapter(msg);
}
+
+CStdString CUSBCECAdapterCommunication::GetPortName(void)
+{
+ CStdString strName;
+ strName = m_port->GetName();
+ return strName;
+}
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