WIB_spybuffer.cpp

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#include "wibmod/WIB1/WIB.hh"
#include "wibmod/WIB1/WIBException.hh"
 
std::vector<data_8b10b_t>
WIB::ReadOutCDLinkSpyBuffer()
{
  if (Read("FEMB_SPY.FIFO_EMPTY")) {
    BUException::WIB_ERROR e;
    e.Append("CD Spy fifo is empty!");
    throw e;
  }
 
  std::vector<data_8b10b_t> data;
  while (!Read("FEMB_SPY.FIFO_EMPTY")) {
    uint32_t val = Read("FEMB_SPY.DATA");
    data.push_back(data_8b10b_t((val >> 8) & 0x1, uint8_t(val & 0xff)));
  }
  return data;
}
 
std::vector<data_8b10b_t>
WIB::ReadDAQLinkSpyBuffer(uint8_t iDAQLink, uint8_t trigger_mode)
{
  // TODO read DAQ link count
  std::string base("DAQ_LINK_");
  base.push_back(GetDAQLinkChar(iDAQLink));
  base.append(".SPY_BUFFER.");
 
  // Check if there is an active capture
  if (ReadWithRetry(base + "CAPTURING_DATA")) {
    BUException::WIB_BUSY e;
    e.Append(base);
    e.Append(" is busy\n");
    throw e;
  }
  // The spy buffer isn't busy, so let's make sure the fifo is empty
  while (!ReadWithRetry(base + "EMPTY")) {
    // Read out a workd from the fifo
    WriteWithRetry(base + "DATA", 0x0);
  }
 
  // write trigger mode
  WriteWithRetry(base + "TRIGGER_MODE", trigger_mode & 0x1);
 
  // Start the capture
  Write(base + "START", 0x1);
 
  // Wait for capture to finish
  while (ReadWithRetry(base + "CAPTURING_DATA")) {
  }
 
  // Read out the data
  std::vector<data_8b10b_t> ret;
 
  while (!ReadWithRetry(base + "EMPTY")) {
    // read out the k-chars
    uint32_t k_data = ReadWithRetry(base + "K_DATA");
    // read out the data
    uint32_t data = ReadWithRetry(base + "DATA");
 
    //    printf("0x%08X 0x%08X\n",k_data,data);
 
    for (size_t iWord = 0; iWord < 4; iWord++) {
      ret.push_back(data_8b10b_t((k_data >> iWord) & 0x1, (data >> (iWord * 8) & 0xFF)));
    }
    // mark word as read
    Write(base + "DATA", 0x0);
  }
  return ret;
}