Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b759b3ac authored by Takashi Iwai's avatar Takashi Iwai
Browse files

Merge branch 'topic/lola' into for-linus

parents e28fb9c6 f428c94c
Loading
Loading
Loading
Loading
+7 −0
Original line number Original line Diff line number Diff line
@@ -1230,6 +1230,13 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
    This module supports multiple cards.
    This module supports multiple cards.
    The driver requires the firmware loader support on kernel.
    The driver requires the firmware loader support on kernel.


  Module snd-lola
  ---------------

    Module for Digigram Lola PCI-e boards

    This module supports multiple cards.

  Module snd-lx6464es
  Module snd-lx6464es
  -------------------
  -------------------


+9 −0
Original line number Original line Diff line number Diff line
@@ -658,6 +658,15 @@ config SND_KORG1212
	  To compile this driver as a module, choose M here: the module
	  To compile this driver as a module, choose M here: the module
	  will be called snd-korg1212.
	  will be called snd-korg1212.


config SND_LOLA
	tristate "Digigram Lola"
	select SND_PCM
	help
	  Say Y to include support for Digigram Lola boards.

	  To compile this driver as a module, choose M here: the module
	  will be called snd-lola.

config SND_LX6464ES
config SND_LX6464ES
	tristate "Digigram LX6464ES"
	tristate "Digigram LX6464ES"
	select SND_PCM
	select SND_PCM
+1 −0
Original line number Original line Diff line number Diff line
@@ -64,6 +64,7 @@ obj-$(CONFIG_SND) += \
	ca0106/ \
	ca0106/ \
	cs46xx/ \
	cs46xx/ \
	cs5535audio/ \
	cs5535audio/ \
	lola/ \
	lx6464es/ \
	lx6464es/ \
	echoaudio/ \
	echoaudio/ \
	emu10k1/ \
	emu10k1/ \
+4 −0
Original line number Original line Diff line number Diff line
snd-lola-y := lola.o lola_pcm.o lola_clock.o lola_mixer.o
snd-lola-$(CONFIG_SND_DEBUG) += lola_proc.o

obj-$(CONFIG_SND_LOLA) += snd-lola.o

sound/pci/lola/lola.c

0 → 100644
+791 −0
Original line number Original line Diff line number Diff line
/*
 *  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/moduleparam.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 int 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) printk(KERN_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) {
				printk(KERN_WARNING SFX "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();
	}
	printk(KERN_WARNING SFX "RIRB response error\n");
	if (!chip->polling_mode) {
		printk(KERN_WARNING SFX "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) {
		printk(KERN_ERR SFX "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 = (u32 *)chip->rb.area;
	chip->rirb.addr = chip->rb.addr + 2048;
	chip->rirb.buf = (u32 *)(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) {
		printk(KERN_ERR SFX "Can't read VENDOR_ID\n");
		return err;
	}
	val >>= 16;
	if (val != 0x1369) {
		printk(KERN_ERR SFX "Unknown codec vendor 0x%x\n", val);
		return -EINVAL;
	}

	err = lola_read_param(chip, 1, LOLA_PAR_FUNCTION_TYPE, &val);
	if (err < 0) {
		printk(KERN_ERR SFX "Can't read FUNCTION_TYPE for 0x%x\n", nid);
		return err;
	}
	if (val != 1) {
		printk(KERN_ERR SFX "Unknown function type %d\n", val);
		return -EINVAL;
	}

	err = lola_read_param(chip, 1, LOLA_PAR_SPECIFIC_CAPS, &val);
	if (err < 0) {
		printk(KERN_ERR SFX "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);
	snd_printdd(SFX "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) {
		printk(KERN_ERR SFX "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);
	if (chip->bar[0].remap_addr)
		iounmap(chip->bar[0].remap_addr);
	if (chip->bar[1].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 __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,
			DRVNAME, 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);

	/* 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)) {
		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;
}

static int __devinit 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_create(index[dev], id[dev], THIS_MODULE, 0, &card);
	if (err < 0) {
		snd_printk(KERN_ERR SFX "Error creating card!\n");
		return err;
	}

	snd_card_set_dev(card, &pci->dev);

	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 __devexit lola_remove(struct pci_dev *pci)
{
	snd_card_free(pci_get_drvdata(pci));
	pci_set_drvdata(pci, NULL);
}

/* PCI IDs */
static DEFINE_PCI_DEVICE_TABLE(lola_ids) = {
	{ PCI_VDEVICE(DIGIGRAM, 0x0001) },
	{ 0, }
};
MODULE_DEVICE_TABLE(pci, lola_ids);

/* pci_driver definition */
static struct pci_driver driver = {
	.name = DRVNAME,
	.id_table = lola_ids,
	.probe = lola_probe,
	.remove = __devexit_p(lola_remove),
};

static int __init alsa_card_lola_init(void)
{
	return pci_register_driver(&driver);
}

static void __exit alsa_card_lola_exit(void)
{
	pci_unregister_driver(&driver);
}

module_init(alsa_card_lola_init)
module_exit(alsa_card_lola_exit)
Loading