GIBV2IONode.cpp

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#include "timing/GIBV2IONode.hpp"
 
#include <string>
#include <math.h>
 
namespace dunedaq {
namespace timing {
 
UHAL_REGISTER_DERIVED_NODE(GIBV2IONode)
 
//-----------------------------------------------------------------------------
GIBV2IONode::GIBV2IONode(const uhal::Node& node)
  : GIBIONode(node, "i2c", "i2c", { "PLL" }, { "PLL", "SFP CDR 0", "SFP CDR 1", "SFP CDR 2", "SFP CDR 3", "SFP CDR 4", "SFP CDR 5", "10 MHz" }, { "i2c", "i2c", "i2c", "i2c", "i2c", "i2c", "i2c" })
{
}
//-----------------------------------------------------------------------------
 
//-----------------------------------------------------------------------------
GIBV2IONode::~GIBV2IONode() {}
//-----------------------------------------------------------------------------
 
//-----------------------------------------------------------------------------
uint8_t
GIBV2IONode::read_sfps_los() const { // NOLINT(build/unsigned)
  uint32_t expander_bits = read_io_expanders();
 
  // A-CLK LOS is 1st bit
  uint8_t los_bits = static_cast<uint8_t>(expander_bits & 0b01);
 
  for (uint8_t sfp = 0; sfp<6; sfp++) {
    // Each SFP has 4 bits, the 3rd bit is the LOS
    // Adds the SFPs in inverse order
    los_bits = (los_bits << 1) + ((expander_bits >> (2 + 20 - 4*sfp)) & 1);
  }
 
  return los_bits;
}
//-----------------------------------------------------------------------------
 
//-----------------------------------------------------------------------------
uint8_t
GIBV2IONode::read_sfps_fault() const { // NOLINT(build/unsigned)
  uint32_t expander_bits = read_io_expanders();
 
  // A-CLK fault is 2nd bit
  uint8_t fault_bits = static_cast<uint8_t>(expander_bits & 0b10);
 
  for (uint8_t sfp = 0; sfp<6; sfp++) {
    // Each SFP has 4 bits, the 4th bit is the fault
    // Adds the SFPs in inverse order
    fault_bits = (fault_bits << 1) + ((expander_bits >> (3 + 20 - 4*sfp)) & 1);
  }
 
  return fault_bits;
}
//-----------------------------------------------------------------------------
 
//-----------------------------------------------------------------------------
bool
GIBV2IONode::clocks_ok() const
{
  std::stringstream status;
 
  auto states = read_sub_nodes(getNode("csr.stat"));
  bool pll_lol = states.find("clk_gen_lol")->second.value();
  //bool pll_interrupt = states.find("clk_gen_intr")->second.value();
  bool mmcm_ok = states.find("mmcm_ok")->second.value();
 
  TLOG_DEBUG(5) << "pll lol: " << pll_lol << ", mmcm ok: " << mmcm_ok;
 
  return !pll_lol && mmcm_ok;
}
//-----------------------------------------------------------------------------
 
//-----------------------------------------------------------------------------
void
GIBV2IONode::switch_sfp_tx(uint32_t sfp_id, bool turn_on) const { // NOLINT(build/unsigned)
 
  validate_sfp_id(sfp_id);
 
  set_i2c_mux_channels(0x1);
 
  // A-CLK is the 7th SFP, but is in slot 7 not 6
  // TODO make this a map dlindebaum 25/10/02
  sfp_id = sfp_id + (sfp_id/6);
 
  auto sfp_expander_1 = get_i2c_device<I2CExpanderSlave>(m_uid_i2c_bus, "SFPExpander1");
    uint8_t current_sfp_tx_control_flags = sfp_expander_1->read_outputs_config(1); // NOLINT(build/unsigned)
 
    uint8_t new_sfp_tx_control_flags; // NOLINT(build/unsigned)
    if (turn_on)
    {
        new_sfp_tx_control_flags = current_sfp_tx_control_flags & ~(1UL << sfp_id);
    }
  else
  {
    new_sfp_tx_control_flags = current_sfp_tx_control_flags | (1UL << sfp_id);
  }
 
  sfp_expander_1->set_outputs(1, new_sfp_tx_control_flags);
}
//-----------------------------------------------------------------------------
 
//-----------------------------------------------------------------------------
uint8_t
GIBV2IONode::get_sfp_tx_disable_bitmap() const { // NOLINT(build/unsigned)
  // First 6 bits and the 8th bit are tx disable for GIBv2/3
  return 0x40;
}
//-----------------------------------------------------------------------------
 
//-----------------------------------------------------------------------------
uint8_t
GIBV2IONode::get_num_sfps() const { // NOLINT(build/unsigned)
  // 7 SFPs on GIBv2/3
  return 7;
}
//-----------------------------------------------------------------------------
 
} // namespace timing
} // namespace dunedaq