#include "LibCEC.h"
#include "platform/serialport.h"
#include "util/StdString.h"
+#include "platform/timeutils.h"
using namespace std;
using namespace CEC;
+CCECAdapterMessage::CCECAdapterMessage(const cec_command &command)
+{
+ clear();
+
+ //set ack polarity to high when transmitting to the broadcast address
+ //set ack polarity low when transmitting to any other address
+ push_back(MSGSTART);
+ push_escaped(MSGCODE_TRANSMIT_ACK_POLARITY);
+ if (command.destination == CECDEVICE_BROADCAST)
+ push_escaped(CEC_TRUE);
+ else
+ push_escaped(CEC_FALSE);
+ push_back(MSGEND);
+
+ // add source and destination
+ push_back(MSGSTART);
+ push_escaped(command.opcode_set == 0 ? (uint8_t)MSGCODE_TRANSMIT_EOM : (uint8_t)MSGCODE_TRANSMIT);
+ push_back(((uint8_t)command.initiator << 4) + (uint8_t)command.destination);
+ push_back(MSGEND);
+
+ // add opcode
+ if (command.opcode_set == 1)
+ {
+ push_back(MSGSTART);
+ push_escaped(command.parameters.IsEmpty() ? (uint8_t)MSGCODE_TRANSMIT_EOM : (uint8_t)MSGCODE_TRANSMIT);
+ push_back((uint8_t) command.opcode);
+ push_back(MSGEND);
+
+ // add parameters
+ for (int8_t iPtr = 0; iPtr < command.parameters.size; iPtr++)
+ {
+ push_back(MSGSTART);
+
+ if (iPtr == command.parameters.size - 1)
+ push_escaped( MSGCODE_TRANSMIT_EOM);
+ else
+ push_escaped(MSGCODE_TRANSMIT);
+
+ push_escaped(command.parameters[iPtr]);
+
+ push_back(MSGEND);
+ }
+ }
+
+ // set timeout
+ transmit_timeout = command.transmit_timeout;
+}
+
+CCECAdapterMessage &CCECAdapterMessage::operator =(const CCECAdapterMessage &msg)
+{
+ packet = msg.packet;
+ state = msg.state;
+ return *this;
+}
+
+CStdString CCECAdapterMessage::MessageCodeAsString(void) const
+{
+ CStdString strMsg;
+ switch (message())
+ {
+ case MSGCODE_NOTHING:
+ strMsg = "NOTHING";
+ break;
+ case MSGCODE_PING:
+ strMsg = "PING";
+ break;
+ case MSGCODE_TIMEOUT_ERROR:
+ strMsg = "TIMEOUT";
+ break;
+ case MSGCODE_HIGH_ERROR:
+ strMsg = "HIGH_ERROR";
+ break;
+ case MSGCODE_LOW_ERROR:
+ strMsg = "LOW_ERROR";
+ break;
+ case MSGCODE_FRAME_START:
+ strMsg = "FRAME_START";
+ break;
+ case MSGCODE_FRAME_DATA:
+ strMsg = "FRAME_DATA";
+ break;
+ case MSGCODE_RECEIVE_FAILED:
+ strMsg = "RECEIVE_FAILED";
+ break;
+ case MSGCODE_COMMAND_ACCEPTED:
+ strMsg = "COMMAND_ACCEPTED";
+ break;
+ case MSGCODE_COMMAND_REJECTED:
+ strMsg = "COMMAND_REJECTED";
+ break;
+ case MSGCODE_SET_ACK_MASK:
+ strMsg = "SET_ACK_MASK";
+ break;
+ case MSGCODE_TRANSMIT:
+ strMsg = "TRANSMIT";
+ break;
+ case MSGCODE_TRANSMIT_EOM:
+ strMsg = "TRANSMIT_EOM";
+ break;
+ case MSGCODE_TRANSMIT_IDLETIME:
+ strMsg = "TRANSMIT_IDLETIME";
+ break;
+ case MSGCODE_TRANSMIT_ACK_POLARITY:
+ strMsg = "TRANSMIT_ACK_POLARITY";
+ break;
+ case MSGCODE_TRANSMIT_LINE_TIMEOUT:
+ strMsg = "TRANSMIT_LINE_TIMEOUT";
+ break;
+ case MSGCODE_TRANSMIT_SUCCEEDED:
+ strMsg = "TRANSMIT_SUCCEEDED";
+ break;
+ case MSGCODE_TRANSMIT_FAILED_LINE:
+ strMsg = "TRANSMIT_FAILED_LINE";
+ break;
+ case MSGCODE_TRANSMIT_FAILED_ACK:
+ strMsg = "TRANSMIT_FAILED_ACK";
+ break;
+ case MSGCODE_TRANSMIT_FAILED_TIMEOUT_DATA:
+ strMsg = "TRANSMIT_FAILED_TIMEOUT_DATA";
+ break;
+ case MSGCODE_TRANSMIT_FAILED_TIMEOUT_LINE:
+ strMsg = "TRANSMIT_FAILED_TIMEOUT_LINE";
+ break;
+ case MSGCODE_FIRMWARE_VERSION:
+ strMsg = "FIRMWARE_VERSION";
+ break;
+ case MSGCODE_START_BOOTLOADER:
+ strMsg = "START_BOOTLOADER";
+ break;
+ case MSGCODE_FRAME_EOM:
+ strMsg = "FRAME_EOM";
+ break;
+ case MSGCODE_FRAME_ACK:
+ strMsg = "FRAME_ACK";
+ break;
+ }
+
+ return strMsg;
+}
+
+CStdString CCECAdapterMessage::ToString(void) const
+{
+ CStdString strMsg;
+ strMsg = MessageCodeAsString();
+
+ switch (message())
+ {
+ case MSGCODE_TIMEOUT_ERROR:
+ case MSGCODE_HIGH_ERROR:
+ case MSGCODE_LOW_ERROR:
+ {
+ int iLine = (size() >= 3) ? (at(1) << 8) | at(2) : 0;
+ uint32_t iTime = (size() >= 7) ? (at(3) << 24) | (at(4) << 16) | (at(5) << 8) | at(6) : 0;
+ strMsg.AppendFormat(" line:%i", iLine);
+ strMsg.AppendFormat(" time:%u", iTime);
+ }
+ break;
+ case MSGCODE_FRAME_START:
+ if (size() >= 2)
+ strMsg.AppendFormat(" initiator:%1x destination:%1x ack:%s %s", initiator(), destination(), ack() ? "high" : "low", eom() ? "eom" : "");
+ break;
+ case MSGCODE_FRAME_DATA:
+ if (size() >= 2)
+ strMsg.AppendFormat(" %02x %s", at(1), eom() ? "eom" : "");
+ break;
+ default:
+ break;
+ }
+
+ return strMsg;
+}
+
+bool CCECAdapterMessage::is_error(void) const
+{
+ cec_adapter_messagecode code = message();
+ return (code == MSGCODE_HIGH_ERROR ||
+ code == MSGCODE_LOW_ERROR ||
+ code == MSGCODE_RECEIVE_FAILED ||
+ code == MSGCODE_COMMAND_REJECTED ||
+ code == MSGCODE_TRANSMIT_LINE_TIMEOUT ||
+ code == MSGCODE_TRANSMIT_FAILED_LINE ||
+ code == MSGCODE_TRANSMIT_FAILED_ACK ||
+ code == MSGCODE_TRANSMIT_FAILED_TIMEOUT_DATA ||
+ code == MSGCODE_TRANSMIT_FAILED_TIMEOUT_LINE);
+}
+
+void CCECAdapterMessage::push_escaped(uint8_t byte)
+{
+ if (byte >= MSGESC)
+ {
+ push_back(MSGESC);
+ push_back(byte - ESCOFFSET);
+ }
+ else
+ push_back(byte);
+}
+
CAdapterCommunication::CAdapterCommunication(CLibCEC *controller) :
- m_controller(controller),
- m_inbuf(NULL),
- m_iInbufSize(0),
- m_iInbufUsed(0),
- m_bStarted(false),
- m_bStop(false)
+ m_port(NULL),
+ m_controller(controller)
{
m_port = new CSerialPort;
}
CAdapterCommunication::~CAdapterCommunication(void)
{
- m_port->Close();
- m_port = NULL;
+ Close();
+
+ if (m_port)
+ {
+ delete m_port;
+ m_port = NULL;
+ }
}
-bool CAdapterCommunication::Open(const char *strPort, int iBaudRate /* = 38400 */, int iTimeoutMs /* = 10000 */)
+bool CAdapterCommunication::Open(const char *strPort, uint16_t iBaudRate /* = 38400 */, uint32_t iTimeoutMs /* = 10000 */)
{
- CLockObject lock(&m_commMutex);
- if (m_bStarted)
+ CLockObject lock(&m_mutex);
+ if (!m_port)
+ {
+ m_controller->AddLog(CEC_LOG_ERROR, "port is NULL");
return false;
+ }
+
+ if (IsOpen())
+ {
+ m_controller->AddLog(CEC_LOG_ERROR, "port is already open");
+ }
if (!m_port->Open(strPort, iBaudRate))
{
//clear any input bytes
uint8_t buff[1024];
- m_port->Read(buff, sizeof(buff), 50);
-
- CCondition::Sleep(CEC_SETTLE_DOWN_TIME);
-
- m_bStop = false;
- m_bStarted = true;
+ while (m_port->Read(buff, sizeof(buff), 500) > 0) {}
if (CreateThread())
{
- m_controller->AddLog(CEC_LOG_DEBUG, "reader thread created");
+ m_startCondition.Wait(&m_mutex);
+ m_controller->AddLog(CEC_LOG_DEBUG, "communication thread started");
return true;
}
else
{
- m_controller->AddLog(CEC_LOG_DEBUG, "could not create a reader thread");
+ m_controller->AddLog(CEC_LOG_DEBUG, "could not create a communication thread");
}
return false;
void CAdapterCommunication::Close(void)
{
+ CLockObject lock(&m_mutex);
+ m_startCondition.Broadcast();
+ m_rcvCondition.Broadcast();
StopThread();
- m_port->Close();
}
void *CAdapterCommunication::Process(void)
{
- while (!m_bStop)
{
- if (!ReadFromDevice(250))
- {
- m_bStarted = false;
- break;
- }
-
- if (!m_bStop)
- CCondition::Sleep(50);
+ CLockObject lock(&m_mutex);
+ m_startCondition.Signal();
}
- m_controller->AddLog(CEC_LOG_DEBUG, "reader thread terminated");
+ while (!IsStopped())
+ {
+ ReadFromDevice(500);
+ Sleep(5);
+ WriteNextCommand();
+ }
- CLockObject lock(&m_commMutex);
- m_bStarted = false;
return NULL;
}
-bool CAdapterCommunication::ReadFromDevice(int iTimeout)
+bool CAdapterCommunication::ReadFromDevice(uint32_t iTimeout)
{
+ int32_t iBytesRead;
uint8_t buff[1024];
- CLockObject lock(&m_commMutex);
- int iBytesRead = m_port->Read(buff, sizeof(buff), iTimeout);
- lock.Leave();
- if (iBytesRead < 0)
+ if (!m_port)
+ return false;
+
+ iBytesRead = m_port->Read(buff, sizeof(buff), iTimeout);
+ if (iBytesRead < 0 || iBytesRead > 256)
{
CStdString strError;
strError.Format("error reading from serial port: %s", m_port->GetError().c_str());
return false;
}
else if (iBytesRead > 0)
- AddData(buff, iBytesRead);
+ AddData(buff, (uint8_t) iBytesRead);
- return true;
+ return iBytesRead > 0;
}
-void CAdapterCommunication::AddData(uint8_t *data, int iLen)
+void CAdapterCommunication::AddData(uint8_t *data, uint8_t iLen)
{
- CLockObject lock(&m_bufferMutex);
- if (iLen + m_iInbufUsed > m_iInbufSize)
- {
- m_iInbufSize = iLen + m_iInbufUsed;
- m_inbuf = (uint8_t*)realloc(m_inbuf, m_iInbufSize);
- }
+ CLockObject lock(&m_mutex);
+ for (unsigned int iPtr = 0; iPtr < iLen; iPtr++)
+ m_inBuffer.Push(data[iPtr]);
- memcpy(m_inbuf + m_iInbufUsed, data, iLen);
- m_iInbufUsed += iLen;
- lock.Leave();
- m_condition.Signal();
+ m_rcvCondition.Signal();
}
-bool CAdapterCommunication::Write(const cec_frame &data)
+void CAdapterCommunication::WriteNextCommand(void)
{
- CLockObject lock(&m_commMutex);
+ CCECAdapterMessage *msg;
+ if (m_outBuffer.Pop(msg))
+ SendMessageToAdapter(msg);
+}
- if (m_port->Write(data) != data.size())
+void CAdapterCommunication::SendMessageToAdapter(CCECAdapterMessage *msg)
+{
+ CLockObject lock(&msg->mutex);
+ if (m_port->Write(msg) != (int32_t) msg->size())
{
CStdString strError;
strError.Format("error writing to serial port: %s", m_port->GetError().c_str());
m_controller->AddLog(CEC_LOG_ERROR, strError);
- return false;
+ msg->state = ADAPTER_MESSAGE_STATE_ERROR;
}
+ else
+ {
+ m_controller->AddLog(CEC_LOG_DEBUG, "command sent");
+ CCondition::Sleep((uint32_t) msg->size() * 24 /*data*/ + 5 /*start bit (4.5 ms)*/);
+ msg->state = ADAPTER_MESSAGE_STATE_SENT;
+ }
+ msg->condition.Signal();
+}
- m_controller->AddLog(CEC_LOG_DEBUG, "command sent");
-
- CCondition::Sleep((int) data.size() * 24 /*data*/ + 5 /*start bit (4.5 ms)*/ + 50 /* to be on the safe side */);
-
+bool CAdapterCommunication::Write(CCECAdapterMessage *data)
+{
+ data->state = ADAPTER_MESSAGE_STATE_WAITING;
+ m_outBuffer.Push(data);
return true;
}
-bool CAdapterCommunication::Read(cec_frame &msg, int iTimeout)
+bool CAdapterCommunication::Read(CCECAdapterMessage &msg, uint32_t iTimeout)
{
- CLockObject lock(&m_bufferMutex);
+ CLockObject lock(&m_mutex);
- if (m_iInbufUsed < 1)
- m_condition.Wait(&m_bufferMutex, iTimeout);
-
- if (m_iInbufUsed < 1)
- return false;
+ msg.clear();
+ uint64_t iNow = GetTimeMs();
+ uint64_t iTarget = iNow + iTimeout;
+ bool bGotFullMessage(false);
+ bool bNextIsEscaped(false);
+ bool bGotStart(false);
- //search for first start of message
- int startpos = -1;
- for (int i = 0; i < m_iInbufUsed; i++)
+ while(!bGotFullMessage && iNow < iTarget)
{
- if (m_inbuf[i] == MSGSTART)
+ uint8_t buf = 0;
+ if (!m_inBuffer.Pop(buf))
{
- startpos = i;
- break;
+ if (!m_rcvCondition.Wait(&m_mutex, (uint32_t) (iTarget - iNow)))
+ return false;
}
- }
-
- if (startpos == -1)
- return false;
-
- //move anything from the first start of message to the beginning of the buffer
- if (startpos > 0)
- {
- memmove(m_inbuf, m_inbuf + startpos, m_iInbufUsed - startpos);
- m_iInbufUsed -= startpos;
- }
-
- if (m_iInbufUsed < 2)
- return false;
- //look for end of message
- startpos = -1;
- int endpos = -1;
- for (int i = 1; i < m_iInbufUsed; i++)
- {
- if (m_inbuf[i] == MSGEND)
+ if (!bGotStart)
{
- endpos = i;
- break;
+ if (buf == MSGSTART)
+ bGotStart = true;
+ continue;
}
- else if (m_inbuf[i] == MSGSTART)
+ else if (buf == MSGSTART) //we found a msgstart before msgend, this is not right, remove
{
- startpos = i;
- break;
+ if (msg.size() > 0)
+ m_controller->AddLog(CEC_LOG_WARNING, "received MSGSTART before MSGEND, removing previous buffer contents");
+ msg.clear();
+ bGotStart = true;
}
- }
-
- if (startpos > 0) //we found a msgstart before msgend, this is not right, remove
- {
- m_controller->AddLog(CEC_LOG_ERROR, "received MSGSTART before MSGEND");
- memmove(m_inbuf, m_inbuf + startpos, m_iInbufUsed - startpos);
- m_iInbufUsed -= startpos;
- return false;
- }
- if (endpos > 0) //found a MSGEND
- {
- msg.clear();
- bool isesc = false;
- for (int i = 1; i < endpos; i++)
+ if (buf == MSGEND)
{
- if (isesc)
- {
- msg.push_back(m_inbuf[i] + (uint8_t)ESCOFFSET);
- isesc = false;
- }
- else if (m_inbuf[i] == MSGESC)
- {
- isesc = true;
- }
- else
- {
- msg.push_back(m_inbuf[i]);
- }
+ bGotFullMessage = true;
}
-
- if (endpos + 1 < m_iInbufUsed)
- memmove(m_inbuf, m_inbuf + endpos + 1, m_iInbufUsed - endpos - 1);
-
- m_iInbufUsed -= endpos + 1;
-
- return true;
+ else if (bNextIsEscaped)
+ {
+ msg.push_back(buf + (uint8_t)ESCOFFSET);
+ bNextIsEscaped = false;
+ }
+ else if (buf == MSGESC)
+ bNextIsEscaped = true;
+ else
+ msg.push_back(buf);
}
- return false;
+ if (bGotFullMessage)
+ msg.state = ADAPTER_MESSAGE_STATE_RECEIVED;
+
+ return bGotFullMessage;
}
std::string CAdapterCommunication::GetError(void) const
bool CAdapterCommunication::StartBootloader(void)
{
+ bool bReturn(false);
if (!IsRunning())
- return false;
+ return bReturn;
m_controller->AddLog(CEC_LOG_DEBUG, "starting the bootloader");
- cec_frame output;
- output.push_back(MSGSTART);
- PushEscaped(output, MSGCODE_START_BOOTLOADER);
- output.push_back(MSGEND);
+ CCECAdapterMessage *output = new CCECAdapterMessage;
- if (!Write(output))
- {
- m_controller->AddLog(CEC_LOG_ERROR, "could not start the bootloader");
- return false;
- }
- m_controller->AddLog(CEC_LOG_DEBUG, "bootloader start command transmitted");
- return true;
-}
+ output->push_back(MSGSTART);
+ output->push_escaped(MSGCODE_START_BOOTLOADER);
+ output->push_back(MSGEND);
-void CAdapterCommunication::PushEscaped(cec_frame &vec, uint8_t byte)
-{
- if (byte >= MSGESC && byte != MSGSTART)
- {
- vec.push_back(MSGESC);
- vec.push_back(byte - ESCOFFSET);
- }
- else
- {
- vec.push_back(byte);
- }
-}
-
-bool CAdapterCommunication::SetAckMask(uint16_t iMask)
-{
- if (!IsRunning())
- return false;
+ SendMessageToAdapter(output);
+ bReturn = output->state == ADAPTER_MESSAGE_STATE_SENT;
+ delete output;
- CStdString strLog;
- strLog.Format("setting ackmask to %2x", iMask);
- m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
-
- cec_frame output;
-
- output.push_back(MSGSTART);
- PushEscaped(output, MSGCODE_SET_ACK_MASK);
- PushEscaped(output, iMask >> 8);
- PushEscaped(output, (uint8_t)iMask);
- output.push_back(MSGEND);
-
- if (!Write(output))
- {
- m_controller->AddLog(CEC_LOG_ERROR, "could not set the ackmask");
- return false;
- }
-
- return true;
+ return bReturn;
}
bool CAdapterCommunication::PingAdapter(void)
{
+ bool bReturn(false);
if (!IsRunning())
- return false;
+ return bReturn;
m_controller->AddLog(CEC_LOG_DEBUG, "sending ping");
- cec_frame output;
- output.push_back(MSGSTART);
- PushEscaped(output, MSGCODE_PING);
- output.push_back(MSGEND);
+ CCECAdapterMessage *output = new CCECAdapterMessage;
- if (!Write(output))
- {
- m_controller->AddLog(CEC_LOG_ERROR, "could not send ping command");
- return false;
- }
+ output->push_back(MSGSTART);
+ output->push_escaped(MSGCODE_PING);
+ output->push_back(MSGEND);
- m_controller->AddLog(CEC_LOG_DEBUG, "ping tranmitted");
+ SendMessageToAdapter(output);
+ bReturn = output->state == ADAPTER_MESSAGE_STATE_SENT;
+ delete output;
- // TODO check for pong
- return true;
+ return bReturn;
+}
+
+bool CAdapterCommunication::IsOpen(void) const
+{
+ return !IsStopped() && m_port->IsOpen() && IsRunning();
}
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