Esempio n. 1
0
/*
 * Do the necessary ALSA-level cleanup to deallocate our driver ...
 */
static void soundscape_free(snd_card_t * c)
{
	register struct soundscape *sscape = get_card_soundscape(c);
	release_resource(sscape->io_res);
	kfree_nocheck(sscape->io_res);
	free_dma(sscape->chip->dma1);
}
Esempio n. 2
0
/*
 * Initialse an MPU-401 subdevice for MIDI support on the SoundScape.
 */
static int __devinit create_mpu401(snd_card_t * card, int devnum, unsigned long port, int irq)
{
	struct soundscape *sscape = get_card_soundscape(card);
	snd_rawmidi_t *rawmidi;
	int err;

#define MPU401_SHARE_HARDWARE  1
	if ((err = snd_mpu401_uart_new(card, devnum,
	                               MPU401_HW_MPU401,
	                               port, MPU401_SHARE_HARDWARE,
	                               irq, SA_INTERRUPT,
	                               &rawmidi)) == 0) {
		mpu401_t *mpu = (mpu401_t *) rawmidi->private_data;
		mpu->open_input = mpu401_open;
		mpu->open_output = mpu401_open;
		mpu->close_input = mpu401_close;
		mpu->close_output = mpu401_close;
		mpu->private_data = sscape;
		sscape->mpu = mpu;

		initialise_mpu401(mpu);
	}

	return err;
}
Esempio n. 3
0
static int __devinit snd_sscape_probe(struct device *pdev, unsigned int dev)
{
	struct snd_card *card;
	struct soundscape *sscape;
	int ret;

	card = snd_card_new(index[dev], id[dev], THIS_MODULE,
			    sizeof(struct soundscape));
	if (!card)
		return -ENOMEM;

	sscape = get_card_soundscape(card);
	sscape->type = SSCAPE;

	dma[dev] &= 0x03;
	ret = create_sscape(dev, card);
	if (ret < 0)
		goto _release_card;

	snd_card_set_dev(card, pdev);
	if ((ret = snd_card_register(card)) < 0) {
		printk(KERN_ERR "sscape: Failed to register sound card\n");
		goto _release_card;
	}
	dev_set_drvdata(pdev, card);
	return 0;

_release_card:
	snd_card_free(card);
	return ret;
}
Esempio n. 4
0
/*
 * Do the necessary ALSA-level cleanup to deallocate our driver ...
 */
static void soundscape_free(struct snd_card *c)
{
	struct soundscape *sscape = get_card_soundscape(c);
	release_and_free_resource(sscape->io_res);
	release_and_free_resource(sscape->wss_res);
	free_dma(sscape->chip->dma1);
}
Esempio n. 5
0
static int sscape_midi_get(struct snd_kcontrol *kctl,
                           struct snd_ctl_elem_value *uctl)
{
	struct snd_wss *chip = snd_kcontrol_chip(kctl);
	struct snd_card *card = chip->card;
	register struct soundscape *s = get_card_soundscape(card);
	unsigned long flags;

	spin_lock_irqsave(&s->lock, flags);
	uctl->value.integer.value[0] = s->midi_vol;
	spin_unlock_irqrestore(&s->lock, flags);
	return 0;
}
Esempio n. 6
0
static int sscape_midi_get(struct snd_kcontrol *kctl,
                           struct snd_ctl_elem_value *uctl)
{
	struct snd_cs4231 *chip = snd_kcontrol_chip(kctl);
	struct snd_card *card = chip->card;
	register struct soundscape *s = get_card_soundscape(card);
	unsigned long flags;

	spin_lock_irqsave(&s->lock, flags);
	set_host_mode_unsafe(s->io_base);

	if (host_write_ctrl_unsafe(s->io_base, CMD_GET_MIDI_VOL, 100)) {
		uctl->value.integer.value[0] = host_read_ctrl_unsafe(s->io_base, 100);
	}

	set_midi_mode_unsafe(s->io_base);
	spin_unlock_irqrestore(&s->lock, flags);
	return 0;
}
Esempio n. 7
0
static int sscape_midi_put(struct snd_kcontrol *kctl,
                           struct snd_ctl_elem_value *uctl)
{
	struct snd_wss *chip = snd_kcontrol_chip(kctl);
	struct snd_card *card = chip->card;
	register struct soundscape *s = get_card_soundscape(card);
	unsigned long flags;
	int change;

	spin_lock_irqsave(&s->lock, flags);

	/*
	 * We need to put the board into HOST mode before we
	 * can send any volume-changing HOST commands ...
	 */
	set_host_mode_unsafe(s->io_base);

	/*
	 * To successfully change the MIDI volume setting, you seem to
	 * have to write a volume command, write the new volume value,
	 * and then perform another volume-related command. Perhaps the
	 * first command is an "open" and the second command is a "close"?
	 */
	if (s->midi_vol == ((unsigned char) uctl->value.integer. value[0] & 127)) {
		change = 0;
		goto __skip_change;
	}
	change = (host_write_ctrl_unsafe(s->io_base, CMD_SET_MIDI_VOL, 100)
	          && host_write_ctrl_unsafe(s->io_base, ((unsigned char) uctl->value.integer. value[0]) & 127, 100)
	          && host_write_ctrl_unsafe(s->io_base, CMD_XXX_MIDI_VOL, 100));
	s->midi_vol = (unsigned char) uctl->value.integer.value[0] & 127;
      __skip_change:

	/*
	 * Take the board out of HOST mode and back into MIDI mode ...
	 */
	set_midi_mode_unsafe(s->io_base);

	spin_unlock_irqrestore(&s->lock, flags);
	return change;
}
Esempio n. 8
0
/*
 * Initialse an MPU-401 subdevice for MIDI support on the SoundScape.
 */
static int __devinit create_mpu401(struct snd_card *card, int devnum, unsigned long port, int irq)
{
	struct soundscape *sscape = get_card_soundscape(card);
	struct snd_rawmidi *rawmidi;
	int err;

	if ((err = snd_mpu401_uart_new(card, devnum,
	                               MPU401_HW_MPU401,
	                               port, MPU401_INFO_INTEGRATED,
	                               irq, IRQF_DISABLED,
	                               &rawmidi)) == 0) {
		struct snd_mpu401 *mpu = (struct snd_mpu401 *) rawmidi->private_data;
		mpu->open_input = mpu401_open;
		mpu->open_output = mpu401_open;
		mpu->close_input = mpu401_close;
		mpu->close_output = mpu401_close;
		mpu->private_data = sscape;
		sscape->mpu = mpu;

		initialise_mpu401(mpu);
	}

	return err;
}
Esempio n. 9
0
/*
 * Create an AD1845 PCM subdevice on the SoundScape. The AD1845
 * is very much like a CS4231, with a few extra bits. We will
 * try to support at least some of the extra bits by overriding
 * some of the CS4231 callback.
 */
static int __devinit create_ad1845(struct snd_card *card, unsigned port, int irq, int dma1)
{
	register struct soundscape *sscape = get_card_soundscape(card);
	struct snd_cs4231 *chip;
	int err;

#define CS4231_SHARE_HARDWARE  (CS4231_HWSHARE_DMA1 | CS4231_HWSHARE_DMA2)
	/*
	 * The AD1845 PCM device is only half-duplex, and so
	 * we only give it one DMA channel ...
	 */
	if ((err = snd_cs4231_create(card,
				     port, -1, irq, dma1, dma1,
				     CS4231_HW_DETECT,
				     CS4231_HWSHARE_DMA1, &chip)) == 0) {
		unsigned long flags;
		struct snd_pcm *pcm;

#define AD1845_FREQ_SEL_ENABLE  0x08

#define AD1845_PWR_DOWN_CTRL   0x1b
#define AD1845_CRYS_CLOCK_SEL  0x1d

/*
 * It turns out that the PLAYBACK_ENABLE bit is set
 * by the lowlevel driver ...
 *
#define AD1845_IFACE_CONFIG  \
           (CS4231_AUTOCALIB | CS4231_RECORD_ENABLE | CS4231_PLAYBACK_ENABLE)
    snd_cs4231_mce_up(chip);
    spin_lock_irqsave(&chip->reg_lock, flags);
    snd_cs4231_out(chip, CS4231_IFACE_CTRL, AD1845_IFACE_CONFIG);
    spin_unlock_irqrestore(&chip->reg_lock, flags);
    snd_cs4231_mce_down(chip);
 */

		/*
		 * The input clock frequency on the SoundScape must
		 * be 14.31818 MHz, because we must set this register
		 * to get the playback to sound correct ...
		 */
		snd_cs4231_mce_up(chip);
		spin_lock_irqsave(&chip->reg_lock, flags);
		snd_cs4231_out(chip, AD1845_CRYS_CLOCK_SEL, 0x20);
		spin_unlock_irqrestore(&chip->reg_lock, flags);
		snd_cs4231_mce_down(chip);

		/*
		 * More custom configuration:
		 * a) select "mode 2", and provide a current drive of 8 mA
		 * b) enable frequency selection (for capture/playback)
		 */
		spin_lock_irqsave(&chip->reg_lock, flags);
		snd_cs4231_out(chip, CS4231_MISC_INFO, (CS4231_MODE2 | 0x10));
		snd_cs4231_out(chip, AD1845_PWR_DOWN_CTRL, snd_cs4231_in(chip, AD1845_PWR_DOWN_CTRL) | AD1845_FREQ_SEL_ENABLE);
		spin_unlock_irqrestore(&chip->reg_lock, flags);

		if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0) {
			snd_printk(KERN_ERR "sscape: No PCM device for AD1845 chip\n");
			goto _error;
		}

		if ((err = snd_cs4231_mixer(chip)) < 0) {
			snd_printk(KERN_ERR "sscape: No mixer device for AD1845 chip\n");
			goto _error;
		}

		if ((err = snd_ctl_add(card, snd_ctl_new1(&midi_mixer_ctl, chip))) < 0) {
			snd_printk(KERN_ERR "sscape: Could not create MIDI mixer control\n");
			goto _error;
		}

		strcpy(card->driver, "SoundScape");
		strcpy(card->shortname, pcm->name);
		snprintf(card->longname, sizeof(card->longname),
		         "%s at 0x%lx, IRQ %d, DMA %d\n",
		         pcm->name, chip->port, chip->irq, chip->dma1);
		chip->set_playback_format = ad1845_playback_format;
		chip->set_capture_format = ad1845_capture_format;
		sscape->chip = chip;
	}

	_error:
	return err;
}
Esempio n. 10
0
/*
 * Create an ALSA soundcard entry for the SoundScape, using
 * the given list of port, IRQ and DMA resources.
 */
static int __devinit create_sscape(int dev, struct snd_card **rcardp)
{
	struct snd_card *card;
	register struct soundscape *sscape;
	register unsigned dma_cfg;
	unsigned irq_cfg;
	unsigned mpu_irq_cfg;
	unsigned xport;
	struct resource *io_res;
	unsigned long flags;
	int err;

	/*
	 * Check that the user didn't pass us garbage data ...
	 */
	irq_cfg = get_irq_config(irq[dev]);
	if (irq_cfg == INVALID_IRQ) {
		snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n", irq[dev]);
		return -ENXIO;
	}

	mpu_irq_cfg = get_irq_config(mpu_irq[dev]);
	if (mpu_irq_cfg == INVALID_IRQ) {
		printk(KERN_ERR "sscape: Invalid IRQ %d\n", mpu_irq[dev]);
		return -ENXIO;
	}
	xport = port[dev];

	/*
	 * Grab IO ports that we will need to probe so that we
	 * can detect and control this hardware ...
	 */
	if ((io_res = request_region(xport, 8, "SoundScape")) == NULL) {
		snd_printk(KERN_ERR "sscape: can't grab port 0x%x\n", xport);
		return -EBUSY;
	}

	/*
	 * Grab both DMA channels (OK, only one for now) ...
	 */
	if ((err = request_dma(dma[dev], "SoundScape")) < 0) {
		snd_printk(KERN_ERR "sscape: can't grab DMA %d\n", dma[dev]);
		goto _release_region;
	}

	/*
	 * Create a new ALSA sound card entry, in anticipation
	 * of detecting our hardware ...
	 */
	if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
				 sizeof(struct soundscape))) == NULL) {
		err = -ENOMEM;
		goto _release_dma;
	}

	sscape = get_card_soundscape(card);
	spin_lock_init(&sscape->lock);
	spin_lock_init(&sscape->fwlock);
	sscape->io_res = io_res;
	sscape->io_base = xport;

	if (!detect_sscape(sscape)) {
		printk(KERN_ERR "sscape: hardware not detected at 0x%x\n", sscape->io_base);
		err = -ENODEV;
		goto _release_card;
	}

	printk(KERN_INFO "sscape: hardware detected at 0x%x, using IRQ %d, DMA %d\n",
	                 sscape->io_base, irq[dev], dma[dev]);

	/*
	 * Now create the hardware-specific device so that we can
	 * load the microcode into the on-board processor.
	 * We cannot use the MPU-401 MIDI system until this firmware
	 * has been loaded into the card.
	 */
	if ((err = snd_hwdep_new(card, "MC68EC000", 0, &(sscape->hw))) < 0) {
		printk(KERN_ERR "sscape: Failed to create firmware device\n");
		goto _release_card;
	}
	strlcpy(sscape->hw->name, "SoundScape M68K", sizeof(sscape->hw->name));
	sscape->hw->name[sizeof(sscape->hw->name) - 1] = '\0';
	sscape->hw->iface = SNDRV_HWDEP_IFACE_SSCAPE;
	sscape->hw->ops.open = sscape_hw_open;
	sscape->hw->ops.release = sscape_hw_release;
	sscape->hw->ops.ioctl = sscape_hw_ioctl;
	sscape->hw->private_data = sscape;

	/*
	 * Tell the on-board devices where their resources are (I think -
	 * I can't be sure without a datasheet ... So many magic values!)
	 */
	spin_lock_irqsave(&sscape->lock, flags);

	activate_ad1845_unsafe(sscape->io_base);

	sscape_write_unsafe(sscape->io_base, GA_INTENA_REG, 0x00); /* disable */
	sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2e);
	sscape_write_unsafe(sscape->io_base, GA_SMCFGB_REG, 0x00);

	/*
	 * Enable and configure the DMA channels ...
	 */
	sscape_write_unsafe(sscape->io_base, GA_DMACFG_REG, 0x50);
	dma_cfg = (sscape->ic_type == IC_ODIE ? 0x70 : 0x40);
	sscape_write_unsafe(sscape->io_base, GA_DMAA_REG, dma_cfg);
	sscape_write_unsafe(sscape->io_base, GA_DMAB_REG, 0x20);

	sscape_write_unsafe(sscape->io_base,
	                    GA_INTCFG_REG, 0xf0 | (mpu_irq_cfg << 2) | mpu_irq_cfg);
	sscape_write_unsafe(sscape->io_base,
	                    GA_CDCFG_REG, 0x09 | DMA_8BIT | (dma[dev] << 4) | (irq_cfg << 1));

	spin_unlock_irqrestore(&sscape->lock, flags);

	/*
	 * We have now enabled the codec chip, and so we should
	 * detect the AD1845 device ...
	 */
	if ((err = create_ad1845(card, CODEC_IO(xport), irq[dev], dma[dev])) < 0) {
		printk(KERN_ERR "sscape: No AD1845 device at 0x%x, IRQ %d\n",
		                CODEC_IO(xport), irq[dev]);
		goto _release_card;
	}
#define MIDI_DEVNUM  0
	if ((err = create_mpu401(card, MIDI_DEVNUM, MPU401_IO(xport), mpu_irq[dev])) < 0) {
		printk(KERN_ERR "sscape: Failed to create MPU-401 device at 0x%x\n",
		                MPU401_IO(xport));
		goto _release_card;
	}

	/*
	 * Enable the master IRQ ...
	 */
	sscape_write(sscape, GA_INTENA_REG, 0x80);

	/*
	 * Initialize mixer
	 */
	sscape->midi_vol = 0;
	host_write_ctrl_unsafe(sscape->io_base, CMD_SET_MIDI_VOL, 100);
	host_write_ctrl_unsafe(sscape->io_base, 0, 100);
	host_write_ctrl_unsafe(sscape->io_base, CMD_XXX_MIDI_VOL, 100);

	/*
	 * Now that we have successfully created this sound card,
	 * it is safe to store the pointer.
	 * NOTE: we only register the sound card's "destructor"
	 *       function now that our "constructor" has completed.
	 */
	card->private_free = soundscape_free;
	*rcardp = card;

	return 0;

	_release_card:
	snd_card_free(card);

	_release_dma:
	free_dma(dma[dev]);

	_release_region:
	release_and_free_resource(io_res);

	return err;
}
Esempio n. 11
0
static int __devinit sscape_pnp_detect(struct pnp_card_link *pcard,
				       const struct pnp_card_device_id *pid)
{
	static int idx = 0;
	struct pnp_dev *dev;
	struct snd_card *card;
	struct soundscape *sscape;
	int ret;

	/*
	 * Allow this function to fail *quietly* if all the ISA PnP
	 * devices were configured using module parameters instead.
	 */
	if ((idx = get_next_autoindex(idx)) >= SNDRV_CARDS)
		return -ENOSPC;

	/*
	 * We have found a candidate ISA PnP card. Now we
	 * have to check that it has the devices that we
	 * expect it to have.
	 *
	 * We will NOT try and autoconfigure all of the resources
	 * needed and then activate the card as we are assuming that
	 * has already been done at boot-time using /proc/isapnp.
	 * We shall simply try to give each active card the resources
	 * that it wants. This is a sensible strategy for a modular
	 * system where unused modules are unloaded regularly.
	 *
	 * This strategy is utterly useless if we compile the driver
	 * into the kernel, of course.
	 */
	// printk(KERN_INFO "sscape: %s\n", card->name);

	/*
	 * Check that we still have room for another sound card ...
	 */
	dev = pnp_request_card_device(pcard, pid->devs[0].id, NULL);
	if (! dev)
		return -ENODEV;

	if (!pnp_is_active(dev)) {
		if (pnp_activate_dev(dev) < 0) {
			printk(KERN_INFO "sscape: device is inactive\n");
			return -EBUSY;
		}
	}

	/*
	 * Create a new ALSA sound card entry, in anticipation
	 * of detecting our hardware ...
	 */
	card = snd_card_new(index[idx], id[idx], THIS_MODULE,
			    sizeof(struct soundscape));
	if (!card)
		return -ENOMEM;

	sscape = get_card_soundscape(card);

	/*
	 * Identify card model ...
	 */
	if (!strncmp("ENS4081", pid->id, 7))
		sscape->type = SSCAPE_VIVO;
	else
		sscape->type = SSCAPE_PNP;

	/*
	 * Read the correct parameters off the ISA PnP bus ...
	 */
	port[idx] = pnp_port_start(dev, 0);
	irq[idx] = pnp_irq(dev, 0);
	mpu_irq[idx] = pnp_irq(dev, 1);
	dma[idx] = pnp_dma(dev, 0) & 0x03;
	if (sscape->type == SSCAPE_PNP) {
		dma2[idx] = dma[idx];
		wss_port[idx] = CODEC_IO(port[idx]);
	} else {
		wss_port[idx] = pnp_port_start(dev, 1);
		dma2[idx] = pnp_dma(dev, 1);
	}

	ret = create_sscape(idx, card);
	if (ret < 0)
		goto _release_card;

	snd_card_set_dev(card, &pcard->card->dev);
	if ((ret = snd_card_register(card)) < 0) {
		printk(KERN_ERR "sscape: Failed to register sound card\n");
		goto _release_card;
	}

	pnp_set_card_drvdata(pcard, card);
	++idx;
	return 0;

_release_card:
	snd_card_free(card);
	return ret;
}
Esempio n. 12
0
/*
 * Create an AD1845 PCM subdevice on the SoundScape. The AD1845
 * is very much like a CS4231, with a few extra bits. We will
 * try to support at least some of the extra bits by overriding
 * some of the CS4231 callback.
 */
static int __devinit create_ad1845(struct snd_card *card, unsigned port,
				   int irq, int dma1, int dma2)
{
	register struct soundscape *sscape = get_card_soundscape(card);
	struct snd_wss *chip;
	int err;

	if (sscape->type == SSCAPE_VIVO)
		port += 4;

	if (dma1 == dma2)
		dma2 = -1;

	err = snd_wss_create(card, port, -1, irq, dma1, dma2,
			     WSS_HW_DETECT, WSS_HWSHARE_DMA1, &chip);
	if (!err) {
		unsigned long flags;
		struct snd_pcm *pcm;

#define AD1845_FREQ_SEL_ENABLE  0x08

#define AD1845_PWR_DOWN_CTRL   0x1b
#define AD1845_CRYS_CLOCK_SEL  0x1d

/*
 * It turns out that the PLAYBACK_ENABLE bit is set
 * by the lowlevel driver ...
 *
#define AD1845_IFACE_CONFIG  \
           (CS4231_AUTOCALIB | CS4231_RECORD_ENABLE | CS4231_PLAYBACK_ENABLE)
    snd_wss_mce_up(chip);
    spin_lock_irqsave(&chip->reg_lock, flags);
    snd_wss_out(chip, CS4231_IFACE_CTRL, AD1845_IFACE_CONFIG);
    spin_unlock_irqrestore(&chip->reg_lock, flags);
    snd_wss_mce_down(chip);
 */

		if (sscape->type != SSCAPE_VIVO) {
			int val;
			/*
			 * The input clock frequency on the SoundScape must
			 * be 14.31818 MHz, because we must set this register
			 * to get the playback to sound correct ...
			 */
			snd_wss_mce_up(chip);
			spin_lock_irqsave(&chip->reg_lock, flags);
			snd_wss_out(chip, AD1845_CRYS_CLOCK_SEL, 0x20);
			spin_unlock_irqrestore(&chip->reg_lock, flags);
			snd_wss_mce_down(chip);

			/*
			 * More custom configuration:
			 * a) select "mode 2" and provide a current drive of 8mA
			 * b) enable frequency selection (for capture/playback)
			 */
			spin_lock_irqsave(&chip->reg_lock, flags);
			snd_wss_out(chip, CS4231_MISC_INFO,
				    CS4231_MODE2 | 0x10);
			val = snd_wss_in(chip, AD1845_PWR_DOWN_CTRL);
			snd_wss_out(chip, AD1845_PWR_DOWN_CTRL,
				    val | AD1845_FREQ_SEL_ENABLE);
			spin_unlock_irqrestore(&chip->reg_lock, flags);
		}

		err = snd_wss_pcm(chip, 0, &pcm);
		if (err < 0) {
			snd_printk(KERN_ERR "sscape: No PCM device "
					    "for AD1845 chip\n");
			goto _error;
		}

		err = snd_wss_mixer(chip);
		if (err < 0) {
			snd_printk(KERN_ERR "sscape: No mixer device "
					    "for AD1845 chip\n");
			goto _error;
		}
		err = snd_wss_timer(chip, 0, NULL);
		if (err < 0) {
			snd_printk(KERN_ERR "sscape: No timer device "
					    "for AD1845 chip\n");
			goto _error;
		}

		if (sscape->type != SSCAPE_VIVO) {
			err = snd_ctl_add(card,
					  snd_ctl_new1(&midi_mixer_ctl, chip));
			if (err < 0) {
				snd_printk(KERN_ERR "sscape: Could not create "
						    "MIDI mixer control\n");
				goto _error;
			}
			chip->set_playback_format = ad1845_playback_format;
			chip->set_capture_format = ad1845_capture_format;
		}

		strcpy(card->driver, "SoundScape");
		strcpy(card->shortname, pcm->name);
		snprintf(card->longname, sizeof(card->longname),
			 "%s at 0x%lx, IRQ %d, DMA1 %d, DMA2 %d\n",
			 pcm->name, chip->port, chip->irq,
			 chip->dma1, chip->dma2);

		sscape->chip = chip;
	}

	_error:
	return err;
}
Esempio n. 13
0
/*
 * Create an AD1845 PCM subdevice on the SoundScape. The AD1845
 * is very much like a CS4231, with a few extra bits. We will
 * try to support at least some of the extra bits by overriding
 * some of the CS4231 callback.
 */
static int __devinit create_ad1845(struct snd_card *card, unsigned port,
				   int irq, int dma1, int dma2)
{
	register struct soundscape *sscape = get_card_soundscape(card);
	struct snd_wss *chip;
	int err;

	if (sscape->type == SSCAPE_VIVO)
		port += 4;

	if (dma1 == dma2)
		dma2 = -1;

	err = snd_wss_create(card, port, -1, irq, dma1, dma2,
			     WSS_HW_DETECT, WSS_HWSHARE_DMA1, &chip);
	if (!err) {
		unsigned long flags;
		struct snd_pcm *pcm;

/*
 * It turns out that the PLAYBACK_ENABLE bit is set
 * by the lowlevel driver ...
 *
#define AD1845_IFACE_CONFIG  \
           (CS4231_AUTOCALIB | CS4231_RECORD_ENABLE | CS4231_PLAYBACK_ENABLE)
    snd_wss_mce_up(chip);
    spin_lock_irqsave(&chip->reg_lock, flags);
    snd_wss_out(chip, CS4231_IFACE_CTRL, AD1845_IFACE_CONFIG);
    spin_unlock_irqrestore(&chip->reg_lock, flags);
    snd_wss_mce_down(chip);
 */

		if (sscape->type != SSCAPE_VIVO) {
			/*
			 * The input clock frequency on the SoundScape must
			 * be 14.31818 MHz, because we must set this register
			 * to get the playback to sound correct ...
			 */
			snd_wss_mce_up(chip);
			spin_lock_irqsave(&chip->reg_lock, flags);
			snd_wss_out(chip, AD1845_CLOCK, 0x20);
			spin_unlock_irqrestore(&chip->reg_lock, flags);
			snd_wss_mce_down(chip);

		}

		err = snd_wss_pcm(chip, 0, &pcm);
		if (err < 0) {
			snd_printk(KERN_ERR "sscape: No PCM device "
					    "for AD1845 chip\n");
			goto _error;
		}

		err = snd_wss_mixer(chip);
		if (err < 0) {
			snd_printk(KERN_ERR "sscape: No mixer device "
					    "for AD1845 chip\n");
			goto _error;
		}
		if (chip->hardware != WSS_HW_AD1848) {
			err = snd_wss_timer(chip, 0, NULL);
			if (err < 0) {
				snd_printk(KERN_ERR "sscape: No timer device "
						    "for AD1845 chip\n");
				goto _error;
			}
		}

		if (sscape->type != SSCAPE_VIVO) {
			err = snd_ctl_add(card,
					  snd_ctl_new1(&midi_mixer_ctl, chip));
			if (err < 0) {
				snd_printk(KERN_ERR "sscape: Could not create "
						    "MIDI mixer control\n");
				goto _error;
			}
		}

		strcpy(card->driver, "SoundScape");
		strcpy(card->shortname, pcm->name);
		snprintf(card->longname, sizeof(card->longname),
			 "%s at 0x%lx, IRQ %d, DMA1 %d, DMA2 %d\n",
			 pcm->name, chip->port, chip->irq,
			 chip->dma1, chip->dma2);

		sscape->chip = chip;
	}

	_error:
	return err;
}