Example #1
0
static int reset_controller(struct lola *chip)
{
	unsigned int gctl = lola_readl(chip, BAR0, GCTL);
	unsigned long end_time;

	if (gctl) {
		/*            */
		lola_writel(chip, BAR1, BOARD_MODE, 0);
		return 0;
	}

	chip->cold_reset = 1;
	lola_writel(chip, BAR0, GCTL, LOLA_GCTL_RESET);
	end_time = jiffies + msecs_to_jiffies(200);
	do {
		msleep(1);
		gctl = lola_readl(chip, BAR0, GCTL);
		if (gctl)
			break;
	} while (time_before(jiffies, end_time));
	if (!gctl) {
		printk(KERN_ERR SFX "cannot reset controller\n");
		return -EIO;
	}
	return 0;
}
Example #2
0
static unsigned int lola_get_lrc(struct lola *chip)
{
	return lola_readl(chip, BAR1, LRC);
}
Example #3
0
static int __devinit lola_create(struct snd_card *card, struct pci_dev *pci,
				 int dev, struct lola **rchip)
{
	struct lola *chip;
	int err;
	unsigned int dever;
	static struct snd_device_ops ops = {
		.dev_free = lola_dev_free,
	};

	*rchip = NULL;

	err = pci_enable_device(pci);
	if (err < 0)
		return err;

	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
	if (!chip) {
		snd_printk(KERN_ERR SFX "cannot allocate chip\n");
		pci_disable_device(pci);
		return -ENOMEM;
	}

	spin_lock_init(&chip->reg_lock);
	mutex_init(&chip->open_mutex);
	chip->card = card;
	chip->pci = pci;
	chip->irq = -1;

	chip->granularity = granularity[dev];
	switch (chip->granularity) {
	case 8:
		chip->sample_rate_max = 48000;
		break;
	case 16:
		chip->sample_rate_max = 96000;
		break;
	case 32:
		chip->sample_rate_max = 192000;
		break;
	default:
		snd_printk(KERN_WARNING SFX
			   "Invalid granularity %d, reset to %d\n",
			   chip->granularity, LOLA_GRANULARITY_MAX);
		chip->granularity = LOLA_GRANULARITY_MAX;
		chip->sample_rate_max = 192000;
		break;
	}
	chip->sample_rate_min = sample_rate_min[dev];
	if (chip->sample_rate_min > chip->sample_rate_max) {
		snd_printk(KERN_WARNING SFX
			   "Invalid sample_rate_min %d, reset to 16000\n",
			   chip->sample_rate_min);
		chip->sample_rate_min = 16000;
	}

	err = pci_request_regions(pci, DRVNAME);
	if (err < 0) {
		kfree(chip);
		pci_disable_device(pci);
		return err;
	}

	chip->bar[0].addr = pci_resource_start(pci, 0);
	chip->bar[0].remap_addr = pci_ioremap_bar(pci, 0);
	chip->bar[1].addr = pci_resource_start(pci, 2);
	chip->bar[1].remap_addr = pci_ioremap_bar(pci, 2);
	if (!chip->bar[0].remap_addr || !chip->bar[1].remap_addr) {
		snd_printk(KERN_ERR SFX "ioremap error\n");
		err = -ENXIO;
		goto errout;
	}

	pci_set_master(pci);

	err = reset_controller(chip);
	if (err < 0)
		goto errout;

	if (request_irq(pci->irq, lola_interrupt, IRQF_SHARED,
			KBUILD_MODNAME, chip)) {
		printk(KERN_ERR SFX "unable to grab IRQ %d\n", pci->irq);
		err = -EBUSY;
		goto errout;
	}
	chip->irq = pci->irq;
	synchronize_irq(chip->irq);

	dever = lola_readl(chip, BAR1, DEVER);
	chip->pcm[CAPT].num_streams = (dever >> 0) & 0x3ff;
	chip->pcm[PLAY].num_streams = (dever >> 10) & 0x3ff;
	chip->version = (dever >> 24) & 0xff;
	snd_printdd(SFX "streams in=%d, out=%d, version=0x%x\n",
		    chip->pcm[CAPT].num_streams, chip->pcm[PLAY].num_streams,
		    chip->version);

	/*                      */
	if (chip->pcm[CAPT].num_streams > MAX_STREAM_IN_COUNT ||
	    chip->pcm[PLAY].num_streams > MAX_STREAM_OUT_COUNT ||
	    (!chip->pcm[CAPT].num_streams &&
	     !chip->pcm[PLAY].num_streams)) {
		printk(KERN_ERR SFX "invalid DEVER = %x\n", dever);
		err = -EINVAL;
		goto errout;
	}

	err = setup_corb_rirb(chip);
	if (err < 0)
		goto errout;

	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
	if (err < 0) {
		snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
		goto errout;
	}

	strcpy(card->driver, "Lola");
	strlcpy(card->shortname, "Digigram Lola", sizeof(card->shortname));
	snprintf(card->longname, sizeof(card->longname),
		 "%s at 0x%lx irq %i",
		 card->shortname, chip->bar[0].addr, chip->irq);
	strcpy(card->mixername, card->shortname);

	lola_irq_enable(chip);

	chip->initialized = 1;
	*rchip = chip;
	return 0;

 errout:
	lola_free(chip);
	return err;
}
Example #4
0
static irqreturn_t lola_interrupt(int irq, void *dev_id)
{
	struct lola *chip = dev_id;
	unsigned int notify_ins, notify_outs, error_ins, error_outs;
	int handled = 0;
	int i;

	notify_ins = notify_outs = error_ins = error_outs = 0;
	spin_lock(&chip->reg_lock);
	for (;;) {
		unsigned int status, in_sts, out_sts;
		unsigned int reg;

		status = lola_readl(chip, BAR1, DINTSTS);
		if (!status || status == -1)
			break;

		in_sts = lola_readl(chip, BAR1, DIINTSTS);
		out_sts = lola_readl(chip, BAR1, DOINTSTS);

		/*                        */
		for (i = 0; in_sts && i < chip->pcm[CAPT].num_streams; i++) {
			if (!(in_sts & (1 << i)))
				continue;
			in_sts &= ~(1 << i);
			reg = lola_dsd_read(chip, i, STS);
			if (reg & LOLA_DSD_STS_DESE) /*       */
				error_ins |= (1 << i);
			if (reg & LOLA_DSD_STS_BCIS) /*        */
				notify_ins |= (1 << i);
			/*       */
			lola_dsd_write(chip, i, STS, reg);
		}

		/*                         */
		for (i = 0; out_sts && i < chip->pcm[PLAY].num_streams; i++) {
			if (!(out_sts & (1 << i)))
				continue;
			out_sts &= ~(1 << i);
			reg = lola_dsd_read(chip, i + MAX_STREAM_IN_COUNT, STS);
			if (reg & LOLA_DSD_STS_DESE) /*       */
				error_outs |= (1 << i);
			if (reg & LOLA_DSD_STS_BCIS) /*        */
				notify_outs |= (1 << i);
			lola_dsd_write(chip, i + MAX_STREAM_IN_COUNT, STS, reg);
		}

		if (status & LOLA_DINT_CTRL) {
			unsigned char rbsts; /*                            */
			rbsts = lola_readb(chip, BAR0, RIRBSTS);
			rbsts &= LOLA_RIRB_INT_MASK;
			if (rbsts)
				lola_writeb(chip, BAR0, RIRBSTS, rbsts);
			rbsts = lola_readb(chip, BAR0, CORBSTS);
			rbsts &= LOLA_CORB_INT_MASK;
			if (rbsts)
				lola_writeb(chip, BAR0, CORBSTS, rbsts);

			lola_update_rirb(chip);
		}

		if (status & (LOLA_DINT_FIFOERR | LOLA_DINT_MUERR)) {
			/*                                   */
			lola_writel(chip, BAR1, DINTSTS,
				    (status & (LOLA_DINT_FIFOERR | LOLA_DINT_MUERR)));
		}
		handled = 1;
	}
	spin_unlock(&chip->reg_lock);

	lola_pcm_update(chip, &chip->pcm[CAPT], notify_ins);
	lola_pcm_update(chip, &chip->pcm[PLAY], notify_outs);

	return IRQ_RETVAL(handled);
}