Exemple #1
0
/*
 * Handle interrupts on GUS devices until there aren't any left.
 */
static void
gusc_intr(void *arg)
{
	sc_p scp = (sc_p)arg;
	int did_something;

	do {
		did_something = 0;
		if (scp->pcm_intr.intr != NULL &&
		    (port_rd(scp->io[2], 2) & 1)) {
			(*scp->pcm_intr.intr)(scp->pcm_intr.arg);
			did_something = 1;
		}
		if (scp->midi_intr.intr != NULL &&
		    (port_rd(scp->io[1], 0) & 0x80)) {
			(*scp->midi_intr.intr)(scp->midi_intr.arg);
			did_something = 1;
		}
	} while (did_something != 0);
}
static int
io_rd(struct ad1816_info *ad1816, int reg)
{
    return port_rd(ad1816->io_base, reg);
}
Exemple #3
0
Fichier : sb16.c Projet : kame/kame
static int
sb_rd(struct sb_info *sb, int reg)
{
    return port_rd(sb->io_base, reg);
}
Exemple #4
0
static int
gusisa_probe(device_t dev)
{
	device_t child;
	struct resource *res, *res2;
	int base, rid, rid2, s, flags;
	unsigned char val;

	base = isa_get_port(dev);
	flags = device_get_flags(dev);
	rid = 1;
	res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, base + 0x100,
				 base + 0x107, 8, RF_ACTIVE);

	if (res == NULL)
		return ENXIO;

	res2 = NULL;

	/*
	 * Check for the presence of some GUS card.  Reset the card,
	 * then see if we can access the memory on it.
	 */

	port_wr(res, 3, 0x4c);
	port_wr(res, 5, 0);
	DELAY(30 * 1000);

	port_wr(res, 3, 0x4c);
	port_wr(res, 5, 1);
	DELAY(30 * 1000);

	s = splhigh();

	/* Write to DRAM.  */

	port_wr(res, 3, 0x43);		/* Register select */
	port_wr(res, 4, 0);		/* Low addr */
	port_wr(res, 5, 0);		/* Med addr */

	port_wr(res, 3, 0x44);		/* Register select */
	port_wr(res, 4, 0);		/* High addr */
	port_wr(res, 7, 0x55);		/* DRAM */

	/* Read from DRAM.  */

	port_wr(res, 3, 0x43);		/* Register select */
	port_wr(res, 4, 0);		/* Low addr */
	port_wr(res, 5, 0);		/* Med addr */

	port_wr(res, 3, 0x44);		/* Register select */
	port_wr(res, 4, 0);		/* High addr */
	val = port_rd(res, 7);		/* DRAM */

	splx(s);

	if (val != 0x55)
		goto fail;

	rid2 = 0;
	res2 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid2, base, base, 1,
				  RF_ACTIVE);

	if (res2 == NULL)
		goto fail;

	s = splhigh();
	port_wr(res2, 0x0f, 0x20);
	val = port_rd(res2, 0x0f);
	splx(s);

	if (val == 0xff || (val & 0x06) == 0)
		val = 0;
	else {
		val = port_rd(res2, 0x506);	/* XXX Out of range.  */
		if (val == 0xff)
			val = 0;
	}

	bus_release_resource(dev, SYS_RES_IOPORT, rid2, res2);
	bus_release_resource(dev, SYS_RES_IOPORT, rid, res);

	if (val >= 10) {
		struct sndcard_func *func;

		/* Looks like a GUS MAX.  Set the rest of the resources.  */

		bus_set_resource(dev, SYS_RES_IOPORT, 2, base + 0x10c, 8);

		if (flags & DV_F_DUAL_DMA)
			bus_set_resource(dev, SYS_RES_DRQ, 1,
					 flags & DV_F_DRQ_MASK, 1);

		/* We can support the CS4231 and MIDI devices.  */

		func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT | M_ZERO);
		if (func == NULL)
			return ENOMEM;
		func->func = SCF_MIDI;
		child = device_add_child(dev, "midi", -1);
		device_set_ivars(child, func);

		func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT | M_ZERO);
		if (func == NULL)
			printf("xxx: gus pcm not attached, out of memory\n");
		else {
			func->func = SCF_PCM;
			child = device_add_child(dev, "pcm", -1);
			device_set_ivars(child, func);
		}
		device_set_desc(dev, "Gravis UltraSound MAX");
		return 0;
	} else {

		/*
		 * TODO: Support even older GUS cards.  MIDI should work on
		 * all models.
		 */
		return ENXIO;
	}

fail:
	bus_release_resource(dev, SYS_RES_IOPORT, rid, res);
	return ENXIO;
}
Exemple #5
0
static int
ess_rd(struct ess_info *sc, int reg)
{
	return port_rd(sc->io_base, reg);
}
Exemple #6
0
static int
ess_rd(struct ess_info *sc, int reg)
{
	return port_rd(sc->sb, reg, 1);
}