Line data    Source code

       1              : /**
       2              :  * @file I2CExpanderNode.cpp
       3              :  *
       4              :  * This is part of the DUNE DAQ Software Suite, copyright 2020.
       5              :  * Licensing/copyright details are in the COPYING file that you should have
       6              :  * received with this code.
       7              :  */
       8              : 
       9              : #include "timing/I2C9546SwitchNode.hpp"
      10              : 
      11              : // PDT headers
      12              : #include "ers/ers.hpp"
      13              : #include "timing/toolbox.hpp"
      14              : 
      15              : #include <vector>
      16              : // #include <fstream>
      17              : // #include <sstream>
      18              : 
      19              : namespace dunedaq {
      20              : namespace timing {
      21              : 
      22              : //-----------------------------------------------------------------------------
      23            0 : I2C9546SwitchSlave::I2C9546SwitchSlave(const I2CMasterNode* i2c_master, uint8_t address) // NOLINT(build/unsigned)
      24            0 :   : I2CSlave(i2c_master, address)
      25            0 : {}
      26              : //-----------------------------------------------------------------------------
      27              : 
      28              : //-----------------------------------------------------------------------------
      29            0 : I2C9546SwitchSlave::~I2C9546SwitchSlave() {}
      30              : //-----------------------------------------------------------------------------
      31              : 
      32              : //-----------------------------------------------------------------------------
      33              : void
      34            0 : I2C9546SwitchSlave::ensure_valid_channel(uint8_t channel) const // NOLINT(build/unsigned)
      35              : {
      36            0 :   if (channel < 4)
      37            0 :     return;
      38              : 
      39            0 :   throw I2C9546SwitchSlaveChannelError(ERS_HERE, std::to_string(channel));
      40              : }
      41              : //-----------------------------------------------------------------------------
      42              : 
      43              : 
      44              : //-----------------------------------------------------------------------------
      45              : void
      46            0 : I2C9546SwitchSlave::enable_channel(uint8_t channel) const // NOLINT(build/unsigned)
      47              : {
      48            0 :   this->ensure_valid_channel(channel);
      49            0 :   std::vector<uint8_t> enable_byte = this->read_i2cPrimitive(1); // NOLINT(build/unsigned)
      50            0 :   uint8_t new_enable_byte = enable_byte.at(0) | (1UL << channel); // NOLINT(build/unsigned)
      51            0 :   this->write_i2cPrimitive({new_enable_byte});
      52            0 : }
      53              : //-----------------------------------------------------------------------------
      54              : 
      55              : //-----------------------------------------------------------------------------
      56              : void
      57            0 : I2C9546SwitchSlave::disable_channel(uint8_t channel) const // NOLINT(build/unsigned)
      58              : {
      59            0 :   this->ensure_valid_channel(channel);
      60            0 :   std::vector<uint8_t> enable_byte = this->read_i2cPrimitive(1); // NOLINT(build/unsigned)
      61            0 :   uint8_t new_enable_byte = enable_byte.at(0) & ~(1UL << channel); // NOLINT(build/unsigned)
      62            0 :   this->write_i2cPrimitive({new_enable_byte});
      63            0 : }
      64              : //-----------------------------------------------------------------------------
      65              : 
      66              : //-----------------------------------------------------------------------------
      67              : uint8_t                                               // NOLINT(build/unsigned)
      68            0 : I2C9546SwitchSlave::read_channels_states() const
      69              : {
      70            0 :   std::vector<uint8_t> enable_byte = this->read_i2cPrimitive(1); // NOLINT(build/unsigned)
      71            0 :   return enable_byte.at(0);
      72            0 : }
      73              : //-----------------------------------------------------------------------------
      74              : 
      75              : //-----------------------------------------------------------------------------
      76              : void                                                         // NOLINT(build/unsigned)
      77            0 : I2C9546SwitchSlave::set_channels_states(uint8_t channels) const // NOLINT(build/unsigned)
      78              : { 
      79            0 :   this->write_i2cPrimitive({channels});
      80            0 : }
      81              : //-----------------------------------------------------------------------------
      82              : 
      83              : } // namespace timing
      84              : } // namespace dunedaq