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claraty::DIO_sim Class Reference

#include <digital_io_sim.h>

Inheritance diagram for claraty::DIO_sim:

[legend]Collaboration diagram for claraty::DIO_sim:

[legend]List of all members.

Public Member Functions
	DIO_sim (size_t n_bits, char *dir_str="", bool invert_signal=false)
int	input ()
int	output ()
int	output (unsigned long data)
void	set_hw_bits (unsigned long data)
DIO_impl &	set_mask (unsigned long mask)
void	set_IO_direction (char *dir_str)
void	invert_IO (bool val=true)
std::string	to_str () const
void	print (const char *msg="") const
Protected Attributes
Bits	_data_bits
Bits	_mask_bits
int	_invert_signal
Private Attributes
Bits	_hw_bits

---

Detailed Description

Definition at line 40 of file digital_io_sim.h.

---

Constructor & Destructor Documentation

claraty::DIO_sim::DIO_sim	(	size_t	n_bits,
		char *	dir_str = "",
		bool	invert_signal = false
	)

Definition at line 34 of file digital_io_sim.cc.

  :  DIO_impl(n_bits, dir_str, invert_signal),
     _hw_bits (0, n_bits)
{
}

---

Member Function Documentation

int claraty::DIO_sim::input

(

)

[virtual]

Implements claraty::DIO_impl.

Definition at line 40 of file digital_io_sim.cc.

References claraty::DIO_impl::_data_bits, _hw_bits, claraty::DIO_impl::_invert_signal, and OK.

{
  _data_bits = _invert_signal ? ~_hw_bits : _hw_bits;

  // _hw_bits.print("==DIO_sim::input() _hw_bits");

  return OK;
}

int claraty::DIO_sim::output

(

)

[virtual]

Implements claraty::DIO_impl.

Definition at line 49 of file digital_io_sim.cc.

References claraty::DIO_impl::_data_bits, _hw_bits, claraty::DIO_impl::_invert_signal, and OK.

{
  _hw_bits = _invert_signal ? ~_data_bits : _data_bits;

  // _hw_bits.print("DIO_sim::output() _hw_bits");

  return OK;
}

int claraty::DIO_sim::output

(

unsigned long

data

)

[virtual]

Implements claraty::DIO_impl.

Definition at line 58 of file digital_io_sim.cc.

References _hw_bits, and claraty::DIO_impl::_invert_signal.

{
  _hw_bits = _invert_signal ? ~data : data;

  // _hw_bits.print("==DIO_sim::output() _hw_bits");

  return 0;
}

void claraty::DIO_sim::set_hw_bits

(

unsigned long

data

)

Definition at line 67 of file digital_io_sim.cc.

References _hw_bits, and claraty::Bits::print().

{
  _hw_bits = data;
  _hw_bits.print("DIO_sim::set_hw_bits() _hw_bits");
}

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DIO_impl & claraty::DIO_impl::set_mask

(

unsigned long

mask

)

[inherited]

Definition at line 80 of file digital_io_impl.cc.

References claraty::DIO_impl::_mask_bits, and claraty::Bits::unchecked_set().

{
  _mask_bits.unchecked_set (mask);      // for effciency

  return *this;
}

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void claraty::DIO_impl::set_IO_direction

(

char *

dir_str

)

[inherited]

Definition at line 87 of file digital_io_impl.cc.

References claraty::DIO_impl::_input_bits, claraty::DIO_impl::_output_bits, claraty::Bits::clr(), claraty::Bits::set(), and claraty::Bits::set_bit().

Referenced by claraty::DIO_impl::DIO_impl(), and claraty::DIO_null::DIO_null().

{
  // Setting I/O direction for all bits:        B = bi-directional for all bits
  //                                            I = input for all bits
  //                                            O = output for all bits
  //
  // Setting I/O direction for each bit
  // e.g., "BBIO" for 4 bits where rightmost character is bit 0 or LSB
  //
  //                                            b = input bit
  //                                            i = input bit
  //                                            o = input bit
  //                                            x = neither input nor output
  //

  int len = strlen(dir_str);


  if (len == 1) {
    switch (dir_str[0]) {
    case 'B':
      _input_bits.set();
      _output_bits.set();
      return;
    case 'I':
      _input_bits.set();
      _output_bits.clr();
      return;
    case 'O':
      _input_bits.clr();
      _output_bits.set();
      return;
    }
  }


  _input_bits.clr();
  _output_bits.clr();

  for (int i=0; i < len; ++i) {
    // start with the last character for bit 0 or LSB
    //
    switch (dir_str[len-i-1]) {
    case 'b':
      _input_bits.set_bit(i);
      _output_bits.set_bit(i);
      break;
    case 'i':
      _input_bits.set_bit(i);
      break;
    case 'o':
      _output_bits.set_bit(i);
      break;
    case 'x':
      break;
    default:
      cerr << "invalid argument DIO_impl::set_IO_direction" << endl;
    } // switch
  } // for i
}

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void claraty::DIO_impl::invert_IO

(

bool

val = true

)

[inherited]

Definition at line 149 of file digital_io_impl.cc.

References claraty::DIO_impl::_invert_signal.

{
  //  default: invert_signal
  //

  _invert_signal = val;
}

string claraty::DIO_impl::to_str

(

)

const [inherited]

Definition at line 158 of file digital_io_impl.cc.

References claraty::DIO_impl::_data_bits, and claraty::Bits::to_str().

{
  return _data_bits.to_str();
}

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void claraty::DIO_impl::print

(

const char *

msg = ""

)

const [inherited]

Definition at line 164 of file digital_io_impl.cc.

References claraty::DIO_impl::_data_bits, and claraty::Bits::print().

{
  _data_bits.print(msg);
}

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Member Data Documentation

Bits claraty::DIO_sim::_hw_bits [private]

Definition at line 50 of file digital_io_sim.h.

Referenced by input(), output(), and set_hw_bits().

Bits claraty::DIO_impl::_data_bits [protected, inherited]

Definition at line 72 of file digital_io_impl.h.

Referenced by claraty::DIO::clr(), claraty::DIO::clr_bit(), input(), claraty::DIO::operator unsigned long(), output(), claraty::DIO_impl::print(), claraty::DIO::set(), claraty::DIO::set_bit(), claraty::DIO::test(), claraty::DIO_impl::to_str(), claraty::DIO::toggle(), and claraty::DIO::toggle_bit().

Bits claraty::DIO_impl::_mask_bits [protected, inherited]

Definition at line 73 of file digital_io_impl.h.

Referenced by claraty::DIO::input(), claraty::DIO::output(), and claraty::DIO_impl::set_mask().

int claraty::DIO_impl::_invert_signal [protected, inherited]

Definition at line 74 of file digital_io_impl.h.

Referenced by claraty::DIO::DIO(), input(), claraty::DIO_impl::invert_IO(), claraty::DIO::operator unsigned long(), and output().

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The documentation for this class was generated from the following files:

• digital_io_sim.h
• digital_io_sim.cc

Last modified: June 05 2007 10:19:53

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