/// <summary>
/// On MMI Closed callback
/// </summary>
/// <param name="pUSBCIFilter">WinTV CI filter</param>
/// <returns></returns>
public Int32 OnMMIClosed(IBaseFilter pUSBCIFilter)
{
Log.Log.Info("WinTvCi OnMMIClosed");
if (m_ciMenuCallback != null)
{
m_ciMenuCallback.OnCiCloseDisplay(0);
}
return(0);
}
/// <summary>
/// Callback from driver to close display
/// </summary>
/// <param name="slot">Slot</param>
/// <param name="nDelay">delay in ms</param>
/// <param name="pParam">Context pointer</param>
public void OnCiCloseDisplay(byte slot, uint nDelay, IntPtr pParam)
{
try
{
lock (this)
{
Log.Log.Debug("OnKncCiCloseDisplay slot:{0} nDelay:{1}", slot, nDelay);
if (m_ciMenuCallback != null)
{
m_ciMenuCallback.OnCiCloseDisplay((int)nDelay);
}
}
}
catch (Exception ex)
{
Log.Log.Debug("KncCiCloseDisplay exception: {0}", ex.ToString());
}
}
/// <summary>
/// Thread that checks for CI menu
/// </summary>
private void CiMenuHandler()
{
Log.Log.Debug("TwinHan: CI handler thread start polling status");
try
{
while (!StopThread)
{
uint CIState;
uint MMIState;
GetCAMStatus(out CIState, out MMIState, true);
switch (MMIState)
{
case 3: // TODO: find proper MMIState codings
MMIInfoStruct MMI = ReadMMI();
if (MMI != null)
{
Log.Log.Debug("TwinHan MMI:");
Log.Log.Debug("Type :{0}", MMI.Type);
Log.Log.Debug("Header: {0}", MMI.Header);
Log.Log.Debug("SubHeader: {0}", MMI.SubHeader);
Log.Log.Debug("ButtomLine: {0}", MMI.BottomLine);
Log.Log.Debug("ItemCount: {0}", MMI.ItemCount);
Log.Log.Debug("EnqFlag: {0}", MMI.EnqFlag);
Log.Log.Debug("Prompt: {0}", MMI.Prompt);
Log.Log.Debug("AnswerLength:{0}", MMI.Answer_Text_Length);
Log.Log.Debug("Blind_Answer:{0}", MMI.Blind_Answer);
// which types do we get???
switch (MMI.Type)
{
case 0:
m_ciMenuCallback.OnCiCloseDisplay(0);
break;
case 1:
if (m_ciMenuCallback != null)
{
m_ciMenuCallback.OnCiMenu(MMI.Header, MMI.SubHeader, MMI.BottomLine, MMI.ItemCount);
for (int m = 0; m < MMI.ItemCount; m++)
{
// choice number start with 0
m_ciMenuCallback.OnCiMenuChoice(m, MMI.MenuItems[m].MenuItem);
}
}
break;
case 3:
if (MMI.EnqFlag != 0)
{
if (m_ciMenuCallback != null)
{
m_ciMenuCallback.OnCiRequest((MMI.Blind_Answer == 1), (uint)MMI.Answer_Text_Length, MMI.Prompt);
}
}
break;
}
}
break;
default:
Log.Log.Write("MMI State {0}", (CIState)MMIState);
break;
}
Thread.Sleep(500);
}
}
catch (ThreadAbortException) {}
catch (Exception ex)
{
Log.Log.Debug("TwinHan: error in CiMenuHandler thread\r\n{0}", ex.ToString());
return;
}
}
/// <summary>
/// Handles APDU (MMI) objects and perform callbacks
/// </summary>
/// <param name="MMI">MMI byte[]</param>
/// <param name="MMI_length">length</param>
public void HandleMMI(byte[] MMI, int MMI_length)
{
// parse starting 3 bytes == tag
DVB_MMI.MMI_TAGS uMMITag = DVB_MMI.ToMMITag(MMI, 0);
// dumping binary APDU
#if DEBUG
DVB_MMI.DumpBinary(MMI, 0, MMI_length);
#endif
// calculate length and offset
int countLengthBytes;
int mmiLength = DVB_MMI.GetLength(MMI, 3 /* bytes for mmi_tag */, out countLengthBytes);
int mmiOffset = 3 + countLengthBytes; // 3 bytes mmi tag + 1 byte length field ?
#if DEBUG
Log.Log.Debug("{0}: MMITag:{1}, MMIObjectLength: {2} ({2:X2}), mmiOffset: {3}", m_cardName, uMMITag, mmiLength,
mmiOffset);
#endif
int offset = 0; // starting with 0; reading whole struct from start
if (uMMITag == DVB_MMI.MMI_TAGS.CLOSE)
{
// Close menu
byte nDelay = 0;
byte CloseCmd = MMI[mmiOffset + 0];
if (CloseCmd != 0)
{
nDelay = MMI[mmiOffset + 1];
}
if (m_ciMenuCallback != null)
{
Log.Log.Debug("{0}: OnCiClose()", m_cardName);
m_ciMenuCallback.OnCiCloseDisplay(nDelay);
}
else
{
Log.Log.Debug("{0}: OnCiCloseDisplay: cannot do callback!", m_cardName);
}
}
if (uMMITag == DVB_MMI.MMI_TAGS.ENQUIRY)
{
// request input
bool bPasswordMode = false;
byte answer_text_length = MMI[mmiOffset + 1];
string strText = "";
if ((MMI[mmiOffset + 0] & 0x01) != 0)
{
bPasswordMode = true;
}
// mmioffset +4 because there a 2 other bytes before text starts
// length is these 2 bytes shorter
strText = DVB_MMI.BytesToString(MMI, mmiOffset + 4, mmiLength - mmiOffset - 2);
if (m_ciMenuCallback != null)
{
Log.Log.Debug("{0}: OnCiRequest: bPasswordMode:{1}, answer_text_length:{2}, strText:{3}", m_cardName,
bPasswordMode, answer_text_length, strText);
m_ciMenuCallback.OnCiRequest(bPasswordMode, answer_text_length, strText);
}
else
{
Log.Log.Debug("{0}: OnCiRequest: cannot do callback!", m_cardName);
}
}
if (uMMITag == DVB_MMI.MMI_TAGS.LIST_LAST || uMMITag == DVB_MMI.MMI_TAGS.MENU_LAST ||
uMMITag == DVB_MMI.MMI_TAGS.MENU_MORE || uMMITag == DVB_MMI.MMI_TAGS.LIST_MORE)
{
// step forward; begin with offset+1; stop when 0x9F reached
// should be modified to offset + mmioffset+1 ?
offset++;
while (MMI[offset] != (byte)0x9F)
{
//Log.Log.Debug("Skip to offset {0} value {1:X2}", offset, MMI[offset]);
offset++;
}
uMMITag = DVB_MMI.ToMMITag(MMI, offset); // get next MMI tag
Log.Log.Debug("{0}: MMI Parse: Got MENU_LAST, skipped to next block on index: {1}; new Tag {2}", m_cardName,
offset, uMMITag);
int nChoices = 0;
List <string> Choices = new List <string>();
// Always three line with menu info (DVB Standard)
// Title Text
offset += DVB_MMI.GetCIText(MMI, offset, ref Choices);
// Subtitle Text
offset += DVB_MMI.GetCIText(MMI, offset, ref Choices);
// Bottom Text
offset += DVB_MMI.GetCIText(MMI, offset, ref Choices);
// first step through the choices, to get info and count them
int max = 20;
while (max-- > 0)
{
// if the offset gets to mmi object length then end here
if (offset >= mmiLength - 1)
{
break;
}
offset += DVB_MMI.GetCIText(MMI, offset, ref Choices);
nChoices++;
}
// when title and choices are ready now, send to client
#if DEBUG
for (int c = 0; c < Choices.Count; c++)
{
Log.Log.Debug("{0}: {1} : {2}", m_cardName, c, Choices[c]);
}
#endif
if (m_ciMenuCallback != null)
{
m_ciMenuCallback.OnCiMenu(Choices[0], Choices[1], Choices[2], nChoices);
for (int c = 3; c < Choices.Count; c++)
{
m_ciMenuCallback.OnCiMenuChoice(c - 3, Choices[c]);
}
}
else
{
Log.Log.Debug("{0}: OnCiMenu: cannot do callback!", m_cardName);
}
}
}