コード例 #1
0
void _CPU_ISR_Set_level( uint32_t new_level )
{
  uint32_t status = _Nios2_Get_ctlreg_status();

  status = _Nios2_ISR_Set_level( new_level, status );

  _Nios2_Set_ctlreg_status( status );
}
コード例 #2
0
bool _ISR_Is_in_progress( void )
{
  if ( _Nios2_Has_internal_interrupt_controller() ) {
    return _ISR_Nest_level != 0;
  } else {
    uint32_t status = _Nios2_Get_ctlreg_status();

    return (status & NIOS2_STATUS_IH) != 0;
  }
}
コード例 #3
0
uint32_t _CPU_ISR_Get_level( void )
{
  uint32_t status = _Nios2_Get_ctlreg_status();
  uint32_t level = 0;

  switch ( _Nios2_ISR_Get_status_mask() ) {
    case NIOS2_ISR_STATUS_MASK_IIC:
      level = (status & NIOS2_STATUS_PIE) == 0;
      break;
    case NIOS2_ISR_STATUS_MASK_EIC_IL:
      level = (status & NIOS2_STATUS_IL_MASK) >> NIOS2_STATUS_IL_OFFSET;
      break;
    case NIOS2_ISR_STATUS_MASK_EIC_RSIE:
      level = (status & NIOS2_STATUS_RSIE) == 0;
      break;
    default:
      /* FIXME */
      _Terminate( INTERNAL_ERROR_CORE, false, 0xdeadbeef );
      break;
  }

  return level;
}