Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 775 insertions, 0 deletions

diff --git a/sound/pci/lola/lola.c b/sound/pci/lola/lola.c
new file mode 100644
index 000000000..254f24366
--- /dev/null
+++ b/sound/pci/lola/lola.c
@@ -0,0 +1,775 @@
+/*
+ *  Support for Digigram Lola PCI-e boards
+ *
+ *  Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License as published by the Free
+ *  Software Foundation; either version 2 of the License, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ *  more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with
+ *  this program; if not, write to the Free Software Foundation, Inc., 59
+ *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/pcm.h>
+#include <sound/initval.h>
+#include "lola.h"
+
+/* Standard options */
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for Digigram Lola driver.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for Digigram Lola driver.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable Digigram Lola driver.");
+
+/* Lola-specific options */
+
+/* for instance use always max granularity which is compatible
+ * with all sample rates
+ */
+static int granularity[SNDRV_CARDS] = {
+	[0 ... (SNDRV_CARDS - 1)] = LOLA_GRANULARITY_MAX
+};
+
+/* below a sample_rate of 16kHz the analogue audio quality is NOT excellent */
+static int sample_rate_min[SNDRV_CARDS] = {
+	[0 ... (SNDRV_CARDS - 1) ] = 16000
+};
+
+module_param_array(granularity, int, NULL, 0444);
+MODULE_PARM_DESC(granularity, "Granularity value");
+module_param_array(sample_rate_min, int, NULL, 0444);
+MODULE_PARM_DESC(sample_rate_min, "Minimal sample rate");
+
+/*
+ */
+
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Digigram, Lola}}");
+MODULE_DESCRIPTION("Digigram Lola driver");
+MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
+
+#ifdef CONFIG_SND_DEBUG_VERBOSE
+static int debug;
+module_param(debug, int, 0644);
+#define verbose_debug(fmt, args...)			\
+	do { if (debug > 1) pr_debug(SFX fmt, ##args); } while (0)
+#else
+#define verbose_debug(fmt, args...)
+#endif
+
+/*
+ * pseudo-codec read/write via CORB/RIRB
+ */
+
+static int corb_send_verb(struct lola *chip, unsigned int nid,
+			  unsigned int verb, unsigned int data,
+			  unsigned int extdata)
+{
+	unsigned long flags;
+	int ret = -EIO;
+
+	chip->last_cmd_nid = nid;
+	chip->last_verb = verb;
+	chip->last_data = data;
+	chip->last_extdata = extdata;
+	data |= (nid << 20) | (verb << 8);
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	if (chip->rirb.cmds < LOLA_CORB_ENTRIES - 1) {
+		unsigned int wp = chip->corb.wp + 1;
+		wp %= LOLA_CORB_ENTRIES;
+		chip->corb.wp = wp;
+		chip->corb.buf[wp * 2] = cpu_to_le32(data);
+		chip->corb.buf[wp * 2 + 1] = cpu_to_le32(extdata);
+		lola_writew(chip, BAR0, CORBWP, wp);
+		chip->rirb.cmds++;
+		smp_wmb();
+		ret = 0;
+	}
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return ret;
+}
+
+static void lola_queue_unsol_event(struct lola *chip, unsigned int res,
+				   unsigned int res_ex)
+{
+	lola_update_ext_clock_freq(chip, res);
+}
+
+/* retrieve RIRB entry - called from interrupt handler */
+static void lola_update_rirb(struct lola *chip)
+{
+	unsigned int rp, wp;
+	u32 res, res_ex;
+
+	wp = lola_readw(chip, BAR0, RIRBWP);
+	if (wp == chip->rirb.wp)
+		return;
+	chip->rirb.wp = wp;
+
+	while (chip->rirb.rp != wp) {
+		chip->rirb.rp++;
+		chip->rirb.rp %= LOLA_CORB_ENTRIES;
+
+		rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
+		res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
+		res = le32_to_cpu(chip->rirb.buf[rp]);
+		if (res_ex & LOLA_RIRB_EX_UNSOL_EV)
+			lola_queue_unsol_event(chip, res, res_ex);
+		else if (chip->rirb.cmds) {
+			chip->res = res;
+			chip->res_ex = res_ex;
+			smp_wmb();
+			chip->rirb.cmds--;
+		}
+	}
+}
+
+static int rirb_get_response(struct lola *chip, unsigned int *val,
+			     unsigned int *extval)
+{
+	unsigned long timeout;
+
+ again:
+	timeout = jiffies + msecs_to_jiffies(1000);
+	for (;;) {
+		if (chip->polling_mode) {
+			spin_lock_irq(&chip->reg_lock);
+			lola_update_rirb(chip);
+			spin_unlock_irq(&chip->reg_lock);
+		}
+		if (!chip->rirb.cmds) {
+			*val = chip->res;
+			if (extval)
+				*extval = chip->res_ex;
+			verbose_debug("get_response: %x, %x\n",
+				      chip->res, chip->res_ex);
+			if (chip->res_ex & LOLA_RIRB_EX_ERROR) {
+				dev_warn(chip->card->dev, "RIRB ERROR: "
+				       "NID=%x, verb=%x, data=%x, ext=%x\n",
+				       chip->last_cmd_nid,
+				       chip->last_verb, chip->last_data,
+				       chip->last_extdata);
+				return -EIO;
+			}
+			return 0;
+		}
+		if (time_after(jiffies, timeout))
+			break;
+		udelay(20);
+		cond_resched();
+	}
+	dev_warn(chip->card->dev, "RIRB response error\n");
+	if (!chip->polling_mode) {
+		dev_warn(chip->card->dev, "switching to polling mode\n");
+		chip->polling_mode = 1;
+		goto again;
+	}
+	return -EIO;
+}
+
+/* aynchronous write of a codec verb with data */
+int lola_codec_write(struct lola *chip, unsigned int nid, unsigned int verb,
+		     unsigned int data, unsigned int extdata)
+{
+	verbose_debug("codec_write NID=%x, verb=%x, data=%x, ext=%x\n",
+		      nid, verb, data, extdata);
+	return corb_send_verb(chip, nid, verb, data, extdata);
+}
+
+/* write a codec verb with data and read the returned status */
+int lola_codec_read(struct lola *chip, unsigned int nid, unsigned int verb,
+		    unsigned int data, unsigned int extdata,
+		    unsigned int *val, unsigned int *extval)
+{
+	int err;
+
+	verbose_debug("codec_read NID=%x, verb=%x, data=%x, ext=%x\n",
+		      nid, verb, data, extdata);
+	err = corb_send_verb(chip, nid, verb, data, extdata);
+	if (err < 0)
+		return err;
+	err = rirb_get_response(chip, val, extval);
+	return err;
+}
+
+/* flush all pending codec writes */
+int lola_codec_flush(struct lola *chip)
+{
+	unsigned int tmp;
+	return rirb_get_response(chip, &tmp, NULL);
+}
+
+/*
+ * interrupt handler
+ */
+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);
+
+		/* clear Input Interrupts */
+		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 */
+				error_ins |= (1 << i);
+			if (reg & LOLA_DSD_STS_BCIS) /* notify */
+				notify_ins |= (1 << i);
+			/* clear */
+			lola_dsd_write(chip, i, STS, reg);
+		}
+
+		/* clear Output Interrupts */
+		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 */
+				error_outs |= (1 << i);
+			if (reg & LOLA_DSD_STS_BCIS) /* notify */
+				notify_outs |= (1 << i);
+			lola_dsd_write(chip, i + MAX_STREAM_IN_COUNT, STS, reg);
+		}
+
+		if (status & LOLA_DINT_CTRL) {
+			unsigned char rbsts; /* ring status is byte access */
+			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)) {
+			/* clear global fifo error interrupt */
+			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);
+}
+
+
+/*
+ * controller
+ */
+static int reset_controller(struct lola *chip)
+{
+	unsigned int gctl = lola_readl(chip, BAR0, GCTL);
+	unsigned long end_time;
+
+	if (gctl) {
+		/* to be sure */
+		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) {
+		dev_err(chip->card->dev, "cannot reset controller\n");
+		return -EIO;
+	}
+	return 0;
+}
+
+static void lola_irq_enable(struct lola *chip)
+{
+	unsigned int val;
+
+	/* enalbe all I/O streams */
+	val = (1 << chip->pcm[PLAY].num_streams) - 1;
+	lola_writel(chip, BAR1, DOINTCTL, val);
+	val = (1 << chip->pcm[CAPT].num_streams) - 1;
+	lola_writel(chip, BAR1, DIINTCTL, val);
+
+	/* enable global irqs */
+	val = LOLA_DINT_GLOBAL | LOLA_DINT_CTRL | LOLA_DINT_FIFOERR |
+		LOLA_DINT_MUERR;
+	lola_writel(chip, BAR1, DINTCTL, val);
+}
+
+static void lola_irq_disable(struct lola *chip)
+{
+	lola_writel(chip, BAR1, DINTCTL, 0);
+	lola_writel(chip, BAR1, DIINTCTL, 0);
+	lola_writel(chip, BAR1, DOINTCTL, 0);
+}
+
+static int setup_corb_rirb(struct lola *chip)
+{
+	int err;
+	unsigned char tmp;
+	unsigned long end_time;
+
+	err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
+				  snd_dma_pci_data(chip->pci),
+				  PAGE_SIZE, &chip->rb);
+	if (err < 0)
+		return err;
+
+	chip->corb.addr = chip->rb.addr;
+	chip->corb.buf = (__le32 *)chip->rb.area;
+	chip->rirb.addr = chip->rb.addr + 2048;
+	chip->rirb.buf = (__le32 *)(chip->rb.area + 2048);
+
+	/* disable ringbuffer DMAs */
+	lola_writeb(chip, BAR0, RIRBCTL, 0);
+	lola_writeb(chip, BAR0, CORBCTL, 0);
+
+	end_time = jiffies + msecs_to_jiffies(200);
+	do {
+		if (!lola_readb(chip, BAR0, RIRBCTL) &&
+		    !lola_readb(chip, BAR0, CORBCTL))
+			break;
+		msleep(1);
+	} while (time_before(jiffies, end_time));
+
+	/* CORB set up */
+	lola_writel(chip, BAR0, CORBLBASE, (u32)chip->corb.addr);
+	lola_writel(chip, BAR0, CORBUBASE, upper_32_bits(chip->corb.addr));
+	/* set the corb size to 256 entries */
+	lola_writeb(chip, BAR0, CORBSIZE, 0x02);
+	/* set the corb write pointer to 0 */
+	lola_writew(chip, BAR0, CORBWP, 0);
+	/* reset the corb hw read pointer */
+	lola_writew(chip, BAR0, CORBRP, LOLA_RBRWP_CLR);
+	/* enable corb dma */
+	lola_writeb(chip, BAR0, CORBCTL, LOLA_RBCTL_DMA_EN);
+	/* clear flags if set */
+	tmp = lola_readb(chip, BAR0, CORBSTS) & LOLA_CORB_INT_MASK;
+	if (tmp)
+		lola_writeb(chip, BAR0, CORBSTS, tmp);
+	chip->corb.wp = 0;
+
+	/* RIRB set up */
+	lola_writel(chip, BAR0, RIRBLBASE, (u32)chip->rirb.addr);
+	lola_writel(chip, BAR0, RIRBUBASE, upper_32_bits(chip->rirb.addr));
+	/* set the rirb size to 256 entries */
+	lola_writeb(chip, BAR0, RIRBSIZE, 0x02);
+	/* reset the rirb hw write pointer */
+	lola_writew(chip, BAR0, RIRBWP, LOLA_RBRWP_CLR);
+	/* set N=1, get RIRB response interrupt for new entry */
+	lola_writew(chip, BAR0, RINTCNT, 1);
+	/* enable rirb dma and response irq */
+	lola_writeb(chip, BAR0, RIRBCTL, LOLA_RBCTL_DMA_EN | LOLA_RBCTL_IRQ_EN);
+	/* clear flags if set */
+	tmp =  lola_readb(chip, BAR0, RIRBSTS) & LOLA_RIRB_INT_MASK;
+	if (tmp)
+		lola_writeb(chip, BAR0, RIRBSTS, tmp);
+	chip->rirb.rp = chip->rirb.cmds = 0;
+
+	return 0;
+}
+
+static void stop_corb_rirb(struct lola *chip)
+{
+	/* disable ringbuffer DMAs */
+	lola_writeb(chip, BAR0, RIRBCTL, 0);
+	lola_writeb(chip, BAR0, CORBCTL, 0);
+}
+
+static void lola_reset_setups(struct lola *chip)
+{
+	/* update the granularity */
+	lola_set_granularity(chip, chip->granularity, true);
+	/* update the sample clock */
+	lola_set_clock_index(chip, chip->clock.cur_index);
+	/* enable unsolicited events of the clock widget */
+	lola_enable_clock_events(chip);
+	/* update the analog gains */
+	lola_setup_all_analog_gains(chip, CAPT, false); /* input, update */
+	/* update SRC configuration if applicable */
+	lola_set_src_config(chip, chip->input_src_mask, false);
+	/* update the analog outputs */
+	lola_setup_all_analog_gains(chip, PLAY, false); /* output, update */
+}
+
+static int lola_parse_tree(struct lola *chip)
+{
+	unsigned int val;
+	int nid, err;
+
+	err = lola_read_param(chip, 0, LOLA_PAR_VENDOR_ID, &val);
+	if (err < 0) {
+		dev_err(chip->card->dev, "Can't read VENDOR_ID\n");
+		return err;
+	}
+	val >>= 16;
+	if (val != 0x1369) {
+		dev_err(chip->card->dev, "Unknown codec vendor 0x%x\n", val);
+		return -EINVAL;
+	}
+
+	err = lola_read_param(chip, 1, LOLA_PAR_FUNCTION_TYPE, &val);
+	if (err < 0) {
+		dev_err(chip->card->dev, "Can't read FUNCTION_TYPE\n");
+		return err;
+	}
+	if (val != 1) {
+		dev_err(chip->card->dev, "Unknown function type %d\n", val);
+		return -EINVAL;
+	}
+
+	err = lola_read_param(chip, 1, LOLA_PAR_SPECIFIC_CAPS, &val);
+	if (err < 0) {
+		dev_err(chip->card->dev, "Can't read SPECCAPS\n");
+		return err;
+	}
+	chip->lola_caps = val;
+	chip->pin[CAPT].num_pins = LOLA_AFG_INPUT_PIN_COUNT(chip->lola_caps);
+	chip->pin[PLAY].num_pins = LOLA_AFG_OUTPUT_PIN_COUNT(chip->lola_caps);
+	dev_dbg(chip->card->dev, "speccaps=0x%x, pins in=%d, out=%d\n",
+		    chip->lola_caps,
+		    chip->pin[CAPT].num_pins, chip->pin[PLAY].num_pins);
+
+	if (chip->pin[CAPT].num_pins > MAX_AUDIO_INOUT_COUNT ||
+	    chip->pin[PLAY].num_pins > MAX_AUDIO_INOUT_COUNT) {
+		dev_err(chip->card->dev, "Invalid Lola-spec caps 0x%x\n", val);
+		return -EINVAL;
+	}
+
+	nid = 0x02;
+	err = lola_init_pcm(chip, CAPT, &nid);
+	if (err < 0)
+		return err;
+	err = lola_init_pcm(chip, PLAY, &nid);
+	if (err < 0)
+		return err;
+
+	err = lola_init_pins(chip, CAPT, &nid);
+	if (err < 0)
+		return err;
+	err = lola_init_pins(chip, PLAY, &nid);
+	if (err < 0)
+		return err;
+
+	if (LOLA_AFG_CLOCK_WIDGET_PRESENT(chip->lola_caps)) {
+		err = lola_init_clock_widget(chip, nid);
+		if (err < 0)
+			return err;
+		nid++;
+	}
+	if (LOLA_AFG_MIXER_WIDGET_PRESENT(chip->lola_caps)) {
+		err = lola_init_mixer_widget(chip, nid);
+		if (err < 0)
+			return err;
+		nid++;
+	}
+
+	/* enable unsolicited events of the clock widget */
+	err = lola_enable_clock_events(chip);
+	if (err < 0)
+		return err;
+
+	/* if last ResetController was not a ColdReset, we don't know
+	 * the state of the card; initialize here again
+	 */
+	if (!chip->cold_reset) {
+		lola_reset_setups(chip);
+		chip->cold_reset = 1;
+	} else {
+		/* set the granularity if it is not the default */
+		if (chip->granularity != LOLA_GRANULARITY_MIN)
+			lola_set_granularity(chip, chip->granularity, true);
+	}
+
+	return 0;
+}
+
+static void lola_stop_hw(struct lola *chip)
+{
+	stop_corb_rirb(chip);
+	lola_irq_disable(chip);
+}
+
+static void lola_free(struct lola *chip)
+{
+	if (chip->initialized)
+		lola_stop_hw(chip);
+	lola_free_pcm(chip);
+	lola_free_mixer(chip);
+	if (chip->irq >= 0)
+		free_irq(chip->irq, (void *)chip);
+	iounmap(chip->bar[0].remap_addr);
+	iounmap(chip->bar[1].remap_addr);
+	if (chip->rb.area)
+		snd_dma_free_pages(&chip->rb);
+	pci_release_regions(chip->pci);
+	pci_disable_device(chip->pci);
+	kfree(chip);
+}
+
+static int lola_dev_free(struct snd_device *device)
+{
+	lola_free(device->device_data);
+	return 0;
+}
+
+static int 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) {
+		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:
+		dev_warn(chip->card->dev,
+			   "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) {
+		dev_warn(chip->card->dev,
+			   "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) {
+		dev_err(chip->card->dev, "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)) {
+		dev_err(chip->card->dev, "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;
+	dev_dbg(chip->card->dev, "streams in=%d, out=%d, version=0x%x\n",
+		    chip->pcm[CAPT].num_streams, chip->pcm[PLAY].num_streams,
+		    chip->version);
+
+	/* Test LOLA_BAR1_DEVER */
+	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)) {
+		dev_err(chip->card->dev, "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) {
+		dev_err(chip->card->dev, "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;
+}
+
+static int lola_probe(struct pci_dev *pci,
+		      const struct pci_device_id *pci_id)
+{
+	static int dev;
+	struct snd_card *card;
+	struct lola *chip;
+	int err;
+
+	if (dev >= SNDRV_CARDS)
+		return -ENODEV;
+	if (!enable[dev]) {
+		dev++;
+		return -ENOENT;
+	}
+
+	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
+			   0, &card);
+	if (err < 0) {
+		dev_err(&pci->dev, "Error creating card!\n");
+		return err;
+	}
+
+	err = lola_create(card, pci, dev, &chip);
+	if (err < 0)
+		goto out_free;
+	card->private_data = chip;
+
+	err = lola_parse_tree(chip);
+	if (err < 0)
+		goto out_free;
+
+	err = lola_create_pcm(chip);
+	if (err < 0)
+		goto out_free;
+
+	err = lola_create_mixer(chip);
+	if (err < 0)
+		goto out_free;
+
+	lola_proc_debug_new(chip);
+
+	err = snd_card_register(card);
+	if (err < 0)
+		goto out_free;
+
+	pci_set_drvdata(pci, card);
+	dev++;
+	return err;
+out_free:
+	snd_card_free(card);
+	return err;
+}
+
+static void lola_remove(struct pci_dev *pci)
+{
+	snd_card_free(pci_get_drvdata(pci));
+}
+
+/* PCI IDs */
+static const struct pci_device_id lola_ids[] = {
+	{ PCI_VDEVICE(DIGIGRAM, 0x0001) },
+	{ 0, }
+};
+MODULE_DEVICE_TABLE(pci, lola_ids);
+
+/* pci_driver definition */
+static struct pci_driver lola_driver = {
+	.name = KBUILD_MODNAME,
+	.id_table = lola_ids,
+	.probe = lola_probe,
+	.remove = lola_remove,
+};
+
+module_pci_driver(lola_driver);