C++ (Cpp) GUS_MIDI_STATUS Exemples

Exemple #1

Fichier : gus_midi.c Projet : hugh712/Jollen

static int dump_to_midi(unsigned char midi_byte)
{
	unsigned long   flags;
	int             ok = 0;

	output_used = 1;

	save_flags(flags);
	cli();

	if (GUS_MIDI_STATUS() & MIDI_XMIT_EMPTY)
	{
		ok = 1;
		outb((midi_byte), u_MidiData);
	}
	else
	{
		/*
		 * Enable Midi xmit interrupts (again)
		 */
		gus_midi_control |= MIDI_ENABLE_XMIT;
		outb((gus_midi_control), u_MidiControl);
	}

	restore_flags(flags);
	return ok;
}

Exemple #2

Fichier : gus_midi.c Projet : Lakshmipathi/Linux-historic

static int
dump_to_midi (unsigned char midi_byte)
{
  unsigned long   flags;
  int             ok = 0;

  output_used = 1;

  DISABLE_INTR (flags);

  if (GUS_MIDI_STATUS () & MIDI_XMIT_EMPTY)
    {
      ok = 1;
      OUTB (midi_byte, u_MidiData);
    }
  else
    {
      /*
       * Enable Midi xmit interrupts (again)
       */
      gus_midi_control |= MIDI_ENABLE_XMIT;
      OUTB (gus_midi_control, u_MidiControl);
    }

  RESTORE_INTR (flags);
  return ok;
}

Exemple #3

Fichier : gus_midi.c Projet : hugh712/Jollen

static int gus_midi_buffer_status(int dev)
{
	unsigned long   flags;

	if (!output_used)
		return 0;

	save_flags(flags);
	cli();

	if (qlen && dump_to_midi(tmp_queue[qhead]))
	{
		qlen--;
		qhead++;
	}
	restore_flags(flags);
	return (qlen > 0) | !(GUS_MIDI_STATUS() & MIDI_XMIT_EMPTY);
}

Exemple #4

Fichier : gus_midi.c Projet : UnitedMarsupials/kame

void
gus_midi_interrupt (int dummy)
{
  unsigned char   stat, data;
  unsigned long   flags;

  DISABLE_INTR (flags);

  stat = GUS_MIDI_STATUS ();

  if (stat & MIDI_RCV_FULL)
    {
      data = INB (u_MidiData);
      if (input_opened)
	midi_input_intr (my_dev, data);
    }

  if (stat & MIDI_XMIT_EMPTY)
    {
      while (qlen && dump_to_midi (tmp_queue[qhead]))
	{
	  qlen--;
	  qhead++;
	}

      if (!qlen)
	{
	  /*
	   * Disable Midi output interrupts, since no data in the buffer
	   */
	  gus_midi_control &= ~MIDI_ENABLE_XMIT;
	  OUTB (gus_midi_control, u_MidiControl);
	}
    }

#if 0
  if (stat & MIDI_FRAME_ERR)
    printk ("GUS: Midi framing error\n");
  if (stat & MIDI_OVERRUN && input_opened)
    printk ("GUS: Midi input overrun\n");
#endif

  RESTORE_INTR (flags);
}

Exemple #5

Fichier : gus_midi.c Projet : Lakshmipathi/Linux-historic

static int
gus_midi_buffer_status (int dev)
{
  unsigned long   flags;

  if (!output_used)
    return 0;

  DISABLE_INTR (flags);

  if (qlen && dump_to_midi (tmp_queue[qhead]))
    {
      qlen--;
      qhead++;
    }

  RESTORE_INTR (flags);

  return (qlen > 0) | !(GUS_MIDI_STATUS () & MIDI_XMIT_EMPTY);
}

Exemple #6

Fichier : gus_midi.c Projet : hugh712/Jollen

void gus_midi_interrupt(int dummy)
{
	volatile unsigned char stat, data;
	unsigned long flags;
	int timeout = 10;

	save_flags(flags);
	cli();

	while (timeout-- > 0 && (stat = GUS_MIDI_STATUS()) & (MIDI_RCV_FULL | MIDI_XMIT_EMPTY))
	{
		if (stat & MIDI_RCV_FULL)
		{
			data = inb(u_MidiData);
			if (input_opened)
				midi_input_intr(my_dev, data);
		}
		if (stat & MIDI_XMIT_EMPTY)
		{
			while (qlen && dump_to_midi(tmp_queue[qhead]))
			{
				qlen--;
				qhead++;
			}
			if (!qlen)
			{
			      /*
			       * Disable Midi output interrupts, since no data in the buffer
			       */
			      gus_midi_control &= ~MIDI_ENABLE_XMIT;
			      outb((gus_midi_control), u_MidiControl);
			      outb((gus_midi_control), u_MidiControl);
			}
		}
	}
	restore_flags(flags);
}