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C:/temp/src/j2k/QNX4/Board.cpp

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#ifndef __J2K__QNX__Board_CPP__
#define __J2K__QNX__Board_CPP__

#include <j2k/Fred/QNX/Board.hpp>

// In16 and Out16 Stuff
static const int Board::input_base_addr  =  INPUT_BASE_ADDR;
static const int Board::output_base_addr = OUTPUT_BASE_ADDR;
static const int Board::enable_addr      = OUTPUT_BASE_ADDR + ENABLE_OFFSET;

// Switch 1->4, Inside/Outside
static const int Board::SwitchTable[8] = {
  SWITCH_1_INSIDE,
  SWITCH_1_OUTSIDE,
  SWITCH_2_INSIDE,
  SWITCH_2_OUTSIDE,
  SWITCH_3_INSIDE,
  SWITCH_3_OUTSIDE,
  SWITCH_4_INSIDE,
  SWITCH_4_OUTSIDE 
};


Board::Board() {
  outp( output_base_addr, 255);
  outp( enable_addr, 3 );   // Enable Output Port 0 & 1 (%0000 0011)
}
    
virtual Board::~Board() {
  outp( output_base_addr,     255 ); // Send 0xFF to Port 0 & 1
  outp( output_base_addr + 1, 255 );
  outp( enable_addr, 0 );            // Disable All Output Port 
}

void Board::Write( int port, int val) {
  port = ( port >= 1 ) ? ( 1 ) : ( 0 );
  val  = ( val > VAL_MAX ) ? ( 0 ) : ( val );
  outp( output_base_addr + port, val);
}

void Board::Write( int val ) {
  int val1 = (val & 0x00FF);
  int val2 = (val & 0xFF00) >> 8;

//   int port = ( val > VAL_MAX ) ? ( 1 ) : ( 0 );
//       val  = ( val > VAL_MAX ) ? ( 0 ) : ( val );

  outp( output_base_addr,     val1 );
  outp( output_base_addr + 1, val2 );
}

void Board::Switch( int switch_id, int direction ) {
  // If the switch_id doesn't make sense then return
  if ( switch_id < 0 || switch_id > 3 ) return;

  // If the direction doesn't make sense then return
  if ( direction < 0 || direction > 1 ) return;

  // Optimized version
  int index = (switch_id << 1) + direction;
  int val   = SwitchTable[index];

  printf( "Send %d", val );
  outp( output_base_addr, val );
}

void Board::SwitchNormal() {
  outp( output_base_addr, 255 );
}

int Board::Read( int port ) {
  port = ( port >= 1 ) ? ( 1 ) : ( 0 );
  return ( inp( input_base_addr + port ) );
}

int Board::Read() {
  int r1 = inp( input_base_addr     );
  int r2 = inp( input_base_addr + 1 );
  return ( ( r2 << 8 ) + r1 );    // Shift Left 8 bits and Add.
}

#endif

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