예제 #1
0
int snd_cs5535audio_resume(struct pci_dev *pci)
{
	struct snd_card *card = pci_get_drvdata(pci);
	struct cs5535audio *cs5535au = card->private_data;
	u32 tmp;
	int timeout;
	int i;

	pci_set_power_state(pci, PCI_D0);
	if (pci_restore_state(pci) < 0) {
		printk(KERN_ERR "cs5535audio: pci_restore_state failed, "
		       "disabling device\n");
		snd_card_disconnect(card);
		return -EIO;
	}
	if (pci_enable_device(pci) < 0) {
		printk(KERN_ERR "cs5535audio: pci_enable_device failed, "
		       "disabling device\n");
		snd_card_disconnect(card);
		return -EIO;
	}
	pci_set_master(pci);

	/* set LNK_WRM_RST to reset AC link */
	cs_writel(cs5535au, ACC_CODEC_CNTL, ACC_CODEC_CNTL_LNK_WRM_RST);

	timeout = 50;
	do {
		tmp = cs_readl(cs5535au, ACC_CODEC_STATUS);
		if (tmp & PRM_RDY_STS)
			break;
		udelay(1);
	} while (--timeout);

	if (!timeout)
		snd_printk(KERN_ERR "Failure getting AC Link ready\n");

	/* set up rate regs, dma. actual initiation is done in trig */
	for (i = 0; i < NUM_CS5535AUDIO_DMAS; i++) {
		struct cs5535audio_dma *dma = &cs5535au->dmas[i];
		if (dma && dma->substream) {
			dma->substream->ops->prepare(dma->substream);
			dma->ops->setup_prd(cs5535au, dma->saved_prd);
		}
	}

	/* we depend on ac97 to perform the codec power up */
	snd_ac97_resume(cs5535au->ac97);
	snd_power_change_state(card, SNDRV_CTL_POWER_D0);

	return 0;
}
예제 #2
0
static int snd_via82xx_resume(struct pci_dev *pci)
{
	struct snd_card *card = pci_get_drvdata(pci);
	struct via82xx_modem *chip = card->private_data;
	int i;

	pci_set_power_state(pci, PCI_D0);
	pci_restore_state(pci);
	if (pci_enable_device(pci) < 0) {
		printk(KERN_ERR "via82xx-modem: pci_enable_device failed, "
		       "disabling device\n");
		snd_card_disconnect(card);
		return -EIO;
	}
	pci_set_master(pci);

	snd_via82xx_chip_init(chip);

	snd_ac97_resume(chip->ac97);

	for (i = 0; i < chip->num_devs; i++)
		snd_via82xx_channel_reset(chip, &chip->devs[i]);

	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
	return 0;
}
예제 #3
0
파일: driver.c 프로젝트: 020gzh/linux
/*
	Line 6 device disconnected.
*/
void line6_disconnect(struct usb_interface *interface)
{
	struct usb_line6 *line6 = usb_get_intfdata(interface);
	struct usb_device *usbdev = interface_to_usbdev(interface);

	if (!line6)
		return;

	if (WARN_ON(usbdev != line6->usbdev))
		return;

	if (line6->urb_listen != NULL)
		line6_stop_listen(line6);

	snd_card_disconnect(line6->card);
	if (line6->line6pcm)
		line6_pcm_disconnect(line6->line6pcm);
	if (line6->disconnect)
		line6->disconnect(line6);

	dev_info(&interface->dev, "Line 6 %s now disconnected\n",
		 line6->properties->name);

	/* make sure the device isn't destructed twice: */
	usb_set_intfdata(interface, NULL);

	snd_card_free_when_closed(line6->card);
}
예제 #4
0
int oxygen_pci_resume(struct pci_dev *pci)
{
	struct snd_card *card = pci_get_drvdata(pci);
	struct oxygen *chip = card->private_data;
	unsigned int i;

	pci_set_power_state(pci, PCI_D0);
	pci_restore_state(pci);
	if (pci_enable_device(pci) < 0) {
		snd_printk(KERN_ERR "cannot reenable device");
		snd_card_disconnect(card);
		return -EIO;
	}
	pci_set_master(pci);

	oxygen_write16(chip, OXYGEN_DMA_STATUS, 0);
	oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0);
	for (i = 0; i < OXYGEN_IO_SIZE; ++i)
		if (is_bit_set(registers_to_restore, i))
			oxygen_write8(chip, i, chip->saved_registers._8[i]);
	if (chip->has_ac97_0)
		oxygen_restore_ac97(chip, 0);
	if (chip->has_ac97_1)
		oxygen_restore_ac97(chip, 1);

	if (chip->model.resume)
		chip->model.resume(chip);

	oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask);

	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
	return 0;
}
예제 #5
0
static void vxpocket_detach(dev_link_t *link)
{
	struct snd_vxpocket *vxp;
	vx_core_t *chip;
	dev_link_t **linkp;

	if (! link)
		return;

	vxp = link->priv;
	chip = (vx_core_t *)vxp;
	card_alloc &= ~(1 << vxp->index);

	/* Remove the interface data from the linked list */
	for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
		if (*linkp == link) {
			*linkp = link->next;
			break;
		}

	chip->chip_status |= VX_STAT_IS_STALE; /* to be sure */
	snd_card_disconnect(chip->card);
	vxpocket_release(link);
	snd_card_free_in_thread(chip->card);
}
예제 #6
0
static void __devexit snd_mpu401_pnp_remove(struct pnp_dev *dev)
{
	struct snd_card *card = (struct snd_card *) pnp_get_drvdata(dev);

	snd_card_disconnect(card);
	snd_card_free_when_closed(card);
}
예제 #7
0
파일: emu10k1.c 프로젝트: jgroen/rtt_tests
static int snd_emu10k1_resume(struct device *dev)
{
	struct pci_dev *pci = to_pci_dev(dev);
	struct snd_card *card = dev_get_drvdata(dev);
	struct snd_emu10k1 *emu = card->private_data;

	pci_set_power_state(pci, PCI_D0);
	pci_restore_state(pci);
	if (pci_enable_device(pci) < 0) {
		printk(KERN_ERR "emu10k1: pci_enable_device failed, "
		       "disabling device\n");
		snd_card_disconnect(card);
		return -EIO;
	}
	pci_set_master(pci);

	snd_emu10k1_resume_init(emu);
	snd_emu10k1_efx_resume(emu);
	snd_ac97_resume(emu->ac97);
	snd_emu10k1_resume_regs(emu);

	if (emu->card_capabilities->ca0151_chip)
		snd_p16v_resume(emu);

	emu->suspend = 0;

	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
	return 0;
}
예제 #8
0
static void __devexit sscape_pnp_remove(struct pnp_card_link * pcard)
{
	snd_card_t *card = (snd_card_t *) pnp_get_card_drvdata(pcard);
        
	pnp_set_card_drvdata(pcard, NULL);
	snd_card_disconnect(card);
	snd_card_free_in_thread(card);
}
예제 #9
0
static void efw_remove(struct fw_unit *unit)
{
	struct snd_efw *efw = dev_get_drvdata(&unit->device);

	snd_efw_stream_destroy_duplex(efw);
	snd_efw_transaction_remove_instance(efw);

	snd_card_disconnect(efw->card);
	snd_card_free_when_closed(efw->card);
}
예제 #10
0
/*
	Cleanup the Line6 USB audio system.
*/
void line6_cleanup_audio(struct usb_line6 *line6)
{
	struct snd_card *card = line6->card;

	if (card == NULL)
		return;

	snd_card_disconnect(card);
	snd_card_free(card);
	line6->card = NULL;
}
예제 #11
0
/*
 * snd_pdacf_detach - detach callback for cs
 */
static void snd_pdacf_detach(struct pcmcia_device *link)
{
	struct snd_pdacf *chip = link->priv;

	snd_printdd(KERN_DEBUG "pdacf_detach called\n");

	if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED)
		snd_pdacf_powerdown(chip);
	chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */
	snd_card_disconnect(chip->card);
	snd_card_free_in_thread(chip->card);
}
예제 #12
0
파일: oxfw.c 프로젝트: 383530895/linux
static void oxfw_remove(struct fw_unit *unit)
{
	struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device);

	snd_card_disconnect(oxfw->card);

	snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
	if (oxfw->has_output)
		snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);

	snd_card_free_when_closed(oxfw->card);
}
예제 #13
0
/*
 * snd_pdacf_detach - detach callback for cs
 */
static void snd_pdacf_detach(struct pcmcia_device *p_dev)
{
	dev_link_t *link = dev_to_instance(p_dev);
	struct snd_pdacf *chip = link->priv;

	snd_printdd(KERN_DEBUG "pdacf_detach called\n");

	if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED)
		snd_pdacf_powerdown(chip);
	chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */
	snd_card_disconnect(chip->card);
	snd_card_free_when_closed(chip->card);
}
예제 #14
0
static int snd_vx222_resume(struct pci_dev *pci)
{
	struct snd_card *card = pci_get_drvdata(pci);
	struct snd_vx222 *vx = card->private_data;

	pci_set_power_state(pci, PCI_D0);
	pci_restore_state(pci);
	if (pci_enable_device(pci) < 0) {
		printk(KERN_ERR "vx222: pci_enable_device failed, "
		       "disabling device\n");
		snd_card_disconnect(card);
		return -EIO;
	}
	pci_set_master(pci);
	return snd_vx_resume(&vx->core);
}
예제 #15
0
static void snd_bebob_remove(struct fw_unit *unit)
{
	struct snd_bebob *bebob = dev_get_drvdata(&unit->device);

	/* this is for firmware bootloader */
	if (bebob == NULL)
		goto end;

	snd_bebob_destroy_pcm_devices(bebob);

	snd_card_disconnect(bebob->card);
	snd_card_free_when_closed(bebob->card);

end:
	return;
}
예제 #16
0
static int __devexit snd_mpu401_acpi_remove(struct acpi_device *device,
					    int type)
{
	snd_card_t *card;

	if (!device)
		return -EINVAL;
	card = (snd_card_t *)acpi_driver_data(device);
	if (!card)
		return -EINVAL;

	snd_card_disconnect(card);
	snd_card_free_in_thread(card);
	acpi_driver_data(device) = NULL;
	return 0;
}
예제 #17
0
static void vxpocket_detach(struct pcmcia_device *link)
{
	struct snd_vxpocket *vxp;
	struct vx_core *chip;

	if (! link)
		return;

	vxp = link->priv;
	chip = (struct vx_core *)vxp;
	card_alloc &= ~(1 << vxp->index);

	chip->chip_status |= VX_STAT_IS_STALE; /* to be sure */
	snd_card_disconnect(chip->card);
	vxpocket_release(link);
	snd_card_free_when_closed(chip->card);
}
예제 #18
0
static void usb6fire_chip_abort(struct sfire_chip *chip)
{
	if (chip) {
		if (chip->pcm)
			usb6fire_pcm_abort(chip);
		if (chip->midi)
			usb6fire_midi_abort(chip);
		if (chip->comm)
			usb6fire_comm_abort(chip);
		if (chip->control)
			usb6fire_control_abort(chip);
		if (chip->card) {
			snd_card_disconnect(chip->card);
			snd_card_free_when_closed(chip->card);
			chip->card = NULL;
		}
	}
}
예제 #19
0
static void snd_us122l_disconnect(struct usb_interface *intf)
{
	struct snd_card *card;
	struct us122l *us122l;
	struct list_head *p;

	card = usb_get_intfdata(intf);
	if (!card)
		return;

	snd_card_disconnect(card);

	us122l = US122L(card);
	mutex_lock(&us122l->mutex);
	us122l_stop(us122l);
	mutex_unlock(&us122l->mutex);

/* release the midi resources */
	list_for_eac
예제 #20
0
static void bcd2000_disconnect(struct usb_interface *interface)
{
	struct bcd2000 *bcd2k = usb_get_intfdata(interface);

	if (!bcd2k)
		return;

	mutex_lock(&devices_mutex);

	/* make sure that userspace cannot create new requests */
	snd_card_disconnect(bcd2k->card);

	bcd2000_free_usb_related_resources(bcd2k, interface);

	clear_bit(bcd2k->card_index, devices_used);

	snd_card_free_when_closed(bcd2k->card);

	mutex_unlock(&devices_mutex);
}
예제 #21
0
/*
 * snd_pdacf_detach - detach callback for cs
 */
static void snd_pdacf_detach(dev_link_t *link)
{
	pdacf_t *chip = link->priv;

	snd_printdd(KERN_DEBUG "pdacf_detach called\n");
	/* Remove the interface data from the linked list */
	{
		dev_link_t **linkp;
		/* Locate device structure */
		for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
			if (*linkp == link)
				break;
		if (*linkp)
			*linkp = link->next;
	}
	if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED)
		snd_pdacf_powerdown(chip);
	chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */
	snd_card_disconnect(chip->card);
	snd_card_free_in_thread(chip->card);
}
예제 #22
0
static int snd_als300_resume(struct pci_dev *pci)
{
	struct snd_card *card = pci_get_drvdata(pci);
	struct snd_als300 *chip = card->private_data;

	pci_set_power_state(pci, PCI_D0);
	pci_restore_state(pci);
	if (pci_enable_device(pci) < 0) {
		printk(KERN_ERR "als300: pci_enable_device failed, "
		       "disabling device\n");
		snd_card_disconnect(card);
		return -EIO;
	}
	pci_set_master(pci);

	snd_als300_init(chip);
	snd_ac97_resume(chip->ac97);

	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
	return 0;
}
예제 #23
0
static int snd_atiixp_resume(struct device *dev)
{
	struct pci_dev *pci = to_pci_dev(dev);
	struct snd_card *card = dev_get_drvdata(dev);
	struct atiixp *chip = card->private_data;
	int i;

	pci_set_power_state(pci, PCI_D0);
	pci_restore_state(pci);
	if (pci_enable_device(pci) < 0) {
		printk(KERN_ERR "atiixp: pci_enable_device failed, "
		       "disabling device\n");
		snd_card_disconnect(card);
		return -EIO;
	}
	pci_set_master(pci);

	snd_atiixp_aclink_reset(chip);
	snd_atiixp_chip_start(chip);

	for (i = 0; i < NUM_ATI_CODECS; i++)
		snd_ac97_resume(chip->ac97[i]);

	for (i = 0; i < NUM_ATI_PCMDEVS; i++)
		if (chip->pcmdevs[i]) {
			struct atiixp_dma *dma = &chip->dmas[i];
			if (dma->substream && dma->suspended) {
				dma->ops->enable_dma(chip, 1);
				dma->substream->ops->prepare(dma->substream);
				writel((u32)dma->desc_buf.addr | ATI_REG_LINKPTR_EN,
				       chip->remap_addr + dma->ops->llp_offset);
				writel(dma->saved_curptr, chip->remap_addr +
				       dma->ops->dt_cur);
			}
		}

	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
	return 0;
}
예제 #24
0
static int nm256_resume(struct device *dev)
{
	struct pci_dev *pci = to_pci_dev(dev);
	struct snd_card *card = dev_get_drvdata(dev);
	struct nm256 *chip = card->private_data;
	int i;

	/* Perform a full reset on the hardware */
	chip->in_resume = 1;

	pci_set_power_state(pci, PCI_D0);
	pci_restore_state(pci);
	if (pci_enable_device(pci) < 0) {
		printk(KERN_ERR "nm256: pci_enable_device failed, "
		       "disabling device\n");
		snd_card_disconnect(card);
		return -EIO;
	}
	pci_set_master(pci);

	snd_nm256_init_chip(chip);

	/* restore ac97 */
	snd_ac97_resume(chip->ac97);

	for (i = 0; i < 2; i++) {
		struct nm256_stream *s = &chip->streams[i];
		if (s->substream && s->suspended) {
			spin_lock_irq(&chip->reg_lock);
			snd_nm256_set_format(chip, s, s->substream);
			spin_unlock_irq(&chip->reg_lock);
		}
	}

	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
	chip->in_resume = 0;
	return 0;
}
예제 #25
0
static void snd_disconnect(struct usb_interface *intf)
{
	struct snd_usb_caiaqdev *dev;
	struct snd_card *card = dev_get_drvdata(&intf->dev);

	debug("%s(%p)\n", __func__, intf);

	if (!card)
		return;

	dev = caiaqdev(card);
	snd_card_disconnect(card);

#ifdef CONFIG_SND_USB_CAIAQ_INPUT
	snd_usb_caiaq_input_free(dev);
#endif
	snd_usb_caiaq_audio_free(dev);
	
	usb_kill_urb(&dev->ep1_in_urb);
	usb_kill_urb(&dev->midi_out_urb);
	
	snd_card_free(card);
	usb_reset_device(interface_to_usbdev(intf));
}
예제 #26
0
static int snd_atiixp_pcm_open(struct snd_pcm_substream *substream,
			       struct atiixp_dma *dma, int pcm_type)
{
	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
	struct snd_pcm_runtime *runtime = substream->runtime;
	int err;
	static unsigned int rates[] = { 8000,  9600, 12000, 16000 };
	static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
		.count = ARRAY_SIZE(rates),
		.list = rates,
		.mask = 0,
	};

	if (snd_BUG_ON(!dma->ops || !dma->ops->enable_dma))
		return -EINVAL;

	if (dma->opened)
		return -EBUSY;
	dma->substream = substream;
	runtime->hw = snd_atiixp_pcm_hw;
	dma->ac97_pcm_type = pcm_type;
	if ((err = snd_pcm_hw_constraint_list(runtime, 0,
					      SNDRV_PCM_HW_PARAM_RATE,
					      &hw_constraints_rates)) < 0)
		return err;
	if ((err = snd_pcm_hw_constraint_integer(runtime,
						 SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
		return err;
	runtime->private_data = dma;

	/*                 */
	spin_lock_irq(&chip->reg_lock);
	dma->ops->enable_dma(chip, 1);
	spin_unlock_irq(&chip->reg_lock);
	dma->opened = 1;

	return 0;
}

static int snd_atiixp_pcm_close(struct snd_pcm_substream *substream,
				struct atiixp_dma *dma)
{
	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
	/*                  */
	if (snd_BUG_ON(!dma->ops || !dma->ops->enable_dma))
		return -EINVAL;
	spin_lock_irq(&chip->reg_lock);
	dma->ops->enable_dma(chip, 0);
	spin_unlock_irq(&chip->reg_lock);
	dma->substream = NULL;
	dma->opened = 0;
	return 0;
}

/*
 */
static int snd_atiixp_playback_open(struct snd_pcm_substream *substream)
{
	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
	int err;

	mutex_lock(&chip->open_mutex);
	err = snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_PLAYBACK], 0);
	mutex_unlock(&chip->open_mutex);
	if (err < 0)
		return err;
	return 0;
}

static int snd_atiixp_playback_close(struct snd_pcm_substream *substream)
{
	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
	int err;
	mutex_lock(&chip->open_mutex);
	err = snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_PLAYBACK]);
	mutex_unlock(&chip->open_mutex);
	return err;
}

static int snd_atiixp_capture_open(struct snd_pcm_substream *substream)
{
	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
	return snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_CAPTURE], 1);
}

static int snd_atiixp_capture_close(struct snd_pcm_substream *substream)
{
	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
	return snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_CAPTURE]);
}


/*               */
static struct snd_pcm_ops snd_atiixp_playback_ops = {
	.open =		snd_atiixp_playback_open,
	.close =	snd_atiixp_playback_close,
	.ioctl =	snd_pcm_lib_ioctl,
	.hw_params =	snd_atiixp_pcm_hw_params,
	.hw_free =	snd_atiixp_pcm_hw_free,
	.prepare =	snd_atiixp_playback_prepare,
	.trigger =	snd_atiixp_pcm_trigger,
	.pointer =	snd_atiixp_pcm_pointer,
};

/*              */
static struct snd_pcm_ops snd_atiixp_capture_ops = {
	.open =		snd_atiixp_capture_open,
	.close =	snd_atiixp_capture_close,
	.ioctl =	snd_pcm_lib_ioctl,
	.hw_params =	snd_atiixp_pcm_hw_params,
	.hw_free =	snd_atiixp_pcm_hw_free,
	.prepare =	snd_atiixp_capture_prepare,
	.trigger =	snd_atiixp_pcm_trigger,
	.pointer =	snd_atiixp_pcm_pointer,
};

static struct atiixp_dma_ops snd_atiixp_playback_dma_ops = {
	.type = ATI_DMA_PLAYBACK,
	.llp_offset = ATI_REG_MODEM_OUT_DMA1_LINKPTR,
	.dt_cur = ATI_REG_MODEM_OUT_DMA1_DT_CUR,
	.enable_dma = atiixp_out_enable_dma,
	.enable_transfer = atiixp_out_enable_transfer,
	.flush_dma = atiixp_out_flush_dma,
};
	
static struct atiixp_dma_ops snd_atiixp_capture_dma_ops = {
	.type = ATI_DMA_CAPTURE,
	.llp_offset = ATI_REG_MODEM_IN_DMA_LINKPTR,
	.dt_cur = ATI_REG_MODEM_IN_DMA_DT_CUR,
	.enable_dma = atiixp_in_enable_dma,
	.enable_transfer = atiixp_in_enable_transfer,
	.flush_dma = atiixp_in_flush_dma,
};

static int __devinit snd_atiixp_pcm_new(struct atiixp_modem *chip)
{
	struct snd_pcm *pcm;
	int err;

	/*                      */
	chip->dmas[ATI_DMA_PLAYBACK].ops = &snd_atiixp_playback_dma_ops;
	chip->dmas[ATI_DMA_CAPTURE].ops = &snd_atiixp_capture_dma_ops;

	/*                    */
	err = snd_pcm_new(chip->card, "ATI IXP MC97", ATI_PCMDEV_ANALOG, 1, 1, &pcm);
	if (err < 0)
		return err;
	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_atiixp_playback_ops);
	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_atiixp_capture_ops);
	pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
	pcm->private_data = chip;
	strcpy(pcm->name, "ATI IXP MC97");
	chip->pcmdevs[ATI_PCMDEV_ANALOG] = pcm;

	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
					      snd_dma_pci_data(chip->pci),
					      64*1024, 128*1024);

	return 0;
}



/*
                    
 */
static irqreturn_t snd_atiixp_interrupt(int irq, void *dev_id)
{
	struct atiixp_modem *chip = dev_id;
	unsigned int status;

	status = atiixp_read(chip, ISR);

	if (! status)
		return IRQ_NONE;

	/*                   */
	if (status & ATI_REG_ISR_MODEM_OUT1_XRUN)
		snd_atiixp_xrun_dma(chip,  &chip->dmas[ATI_DMA_PLAYBACK]);
	else if (status & ATI_REG_ISR_MODEM_OUT1_STATUS)
		snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_PLAYBACK]);
	if (status & ATI_REG_ISR_MODEM_IN_XRUN)
		snd_atiixp_xrun_dma(chip,  &chip->dmas[ATI_DMA_CAPTURE]);
	else if (status & ATI_REG_ISR_MODEM_IN_STATUS)
		snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_CAPTURE]);

	/*                     */
	if (status & CODEC_CHECK_BITS) {
		unsigned int detected;
		detected = status & CODEC_CHECK_BITS;
		spin_lock(&chip->reg_lock);
		chip->codec_not_ready_bits |= detected;
		atiixp_update(chip, IER, detected, 0); /*                           */
		spin_unlock(&chip->reg_lock);
	}

	/*     */
	atiixp_write(chip, ISR, status);

	return IRQ_HANDLED;
}


/*
                     
 */

static int __devinit snd_atiixp_mixer_new(struct atiixp_modem *chip, int clock)
{
	struct snd_ac97_bus *pbus;
	struct snd_ac97_template ac97;
	int i, err;
	int codec_count;
	static struct snd_ac97_bus_ops ops = {
		.write = snd_atiixp_ac97_write,
		.read = snd_atiixp_ac97_read,
	};
	static unsigned int codec_skip[NUM_ATI_CODECS] = {
		ATI_REG_ISR_CODEC0_NOT_READY,
		ATI_REG_ISR_CODEC1_NOT_READY,
		ATI_REG_ISR_CODEC2_NOT_READY,
	};

	if (snd_atiixp_codec_detect(chip) < 0)
		return -ENXIO;

	if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
		return err;
	pbus->clock = clock;
	chip->ac97_bus = pbus;

	codec_count = 0;
	for (i = 0; i < NUM_ATI_CODECS; i++) {
		if (chip->codec_not_ready_bits & codec_skip[i])
			continue;
		memset(&ac97, 0, sizeof(ac97));
		ac97.private_data = chip;
		ac97.pci = chip->pci;
		ac97.num = i;
		ac97.scaps = AC97_SCAP_SKIP_AUDIO | AC97_SCAP_POWER_SAVE;
		if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
			chip->ac97[i] = NULL; /*            */
			snd_printdd("atiixp-modem: codec %d not available for modem\n", i);
			continue;
		}
		codec_count++;
	}

	if (! codec_count) {
		snd_printk(KERN_ERR "atiixp-modem: no codec available\n");
		return -ENODEV;
	}

	/*                                                  */

	return 0;
}


#ifdef CONFIG_PM
/*
                   
 */
static int snd_atiixp_suspend(struct pci_dev *pci, pm_message_t state)
{
	struct snd_card *card = pci_get_drvdata(pci);
	struct atiixp_modem *chip = card->private_data;
	int i;

	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
	for (i = 0; i < NUM_ATI_PCMDEVS; i++)
		snd_pcm_suspend_all(chip->pcmdevs[i]);
	for (i = 0; i < NUM_ATI_CODECS; i++)
		snd_ac97_suspend(chip->ac97[i]);
	snd_atiixp_aclink_down(chip);
	snd_atiixp_chip_stop(chip);

	pci_disable_device(pci);
	pci_save_state(pci);
	pci_set_power_state(pci, pci_choose_state(pci, state));
	return 0;
}

static int snd_atiixp_resume(struct pci_dev *pci)
{
	struct snd_card *card = pci_get_drvdata(pci);
	struct atiixp_modem *chip = card->private_data;
	int i;

	pci_set_power_state(pci, PCI_D0);
	pci_restore_state(pci);
	if (pci_enable_device(pci) < 0) {
		printk(KERN_ERR "atiixp-modem: pci_enable_device failed, "
		       "disabling device\n");
		snd_card_disconnect(card);
		return -EIO;
	}
	pci_set_master(pci);

	snd_atiixp_aclink_reset(chip);
	snd_atiixp_chip_start(chip);

	for (i = 0; i < NUM_ATI_CODECS; i++)
		snd_ac97_resume(chip->ac97[i]);

	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
	return 0;
}
#endif /*           */


#ifdef CONFIG_PROC_FS
/*
                                   
 */

static void snd_atiixp_proc_read(struct snd_info_entry *entry,
				 struct snd_info_buffer *buffer)
{
	struct atiixp_modem *chip = entry->private_data;
	int i;

	for (i = 0; i < 256; i += 4)
		snd_iprintf(buffer, "%02x: %08x\n", i, readl(chip->remap_addr + i));
}

static void __devinit snd_atiixp_proc_init(struct atiixp_modem *chip)
{
	struct snd_info_entry *entry;

	if (! snd_card_proc_new(chip->card, "atiixp-modem", &entry))
		snd_info_set_text_ops(entry, chip, snd_atiixp_proc_read);
}
#else
#define snd_atiixp_proc_init(chip)
#endif


/*
             
 */

static int snd_atiixp_free(struct atiixp_modem *chip)
{
	if (chip->irq < 0)
		goto __hw_end;
	snd_atiixp_chip_stop(chip);

      __hw_end:
	if (chip->irq >= 0)
		free_irq(chip->irq, chip);
	if (chip->remap_addr)
		iounmap(chip->remap_addr);
	pci_release_regions(chip->pci);
	pci_disable_device(chip->pci);
	kfree(chip);
	return 0;
}

static int snd_atiixp_dev_free(struct snd_device *device)
{
	struct atiixp_modem *chip = device->device_data;
	return snd_atiixp_free(chip);
}

/*
                                
 */
static int __devinit snd_atiixp_create(struct snd_card *card,
				       struct pci_dev *pci,
				       struct atiixp_modem **r_chip)
{
	static struct snd_device_ops ops = {
		.dev_free =	snd_atiixp_dev_free,
	};
	struct atiixp_modem *chip;
	int err;

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

	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
	if (chip == NULL) {
		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;
	if ((err = pci_request_regions(pci, "ATI IXP MC97")) < 0) {
		kfree(chip);
		pci_disable_device(pci);
		return err;
	}
	chip->addr = pci_resource_start(pci, 0);
	chip->remap_addr = pci_ioremap_bar(pci, 0);
	if (chip->remap_addr == NULL) {
		snd_printk(KERN_ERR "AC'97 space ioremap problem\n");
		snd_atiixp_free(chip);
		return -EIO;
	}

	if (request_irq(pci->irq, snd_atiixp_interrupt, IRQF_SHARED,
			KBUILD_MODNAME, chip)) {
		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
		snd_atiixp_free(chip);
		return -EBUSY;
	}
	chip->irq = pci->irq;
	pci_set_master(pci);
	synchronize_irq(chip->irq);

	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
		snd_atiixp_free(chip);
		return err;
	}

	snd_card_set_dev(card, &pci->dev);

	*r_chip = chip;
	return 0;
}


static int __devinit snd_atiixp_probe(struct pci_dev *pci,
				      const struct pci_device_id *pci_id)
{
	struct snd_card *card;
	struct atiixp_modem *chip;
	int err;

	err = snd_card_create(index, id, THIS_MODULE, 0, &card);
	if (err < 0)
		return err;

	strcpy(card->driver, "ATIIXP-MODEM");
	strcpy(card->shortname, "ATI IXP Modem");
	if ((err = snd_atiixp_create(card, pci, &chip)) < 0)
		goto __error;
	card->private_data = chip;

	if ((err = snd_atiixp_aclink_reset(chip)) < 0)
		goto __error;

	if ((err = snd_atiixp_mixer_new(chip, ac97_clock)) < 0)
		goto __error;

	if ((err = snd_atiixp_pcm_new(chip)) < 0)
		goto __error;
	
	snd_atiixp_proc_init(chip);

	snd_atiixp_chip_start(chip);

	sprintf(card->longname, "%s rev %x at 0x%lx, irq %i",
		card->shortname, pci->revision, chip->addr, chip->irq);

	if ((err = snd_card_register(card)) < 0)
		goto __error;

	pci_set_drvdata(pci, card);
	return 0;

 __error:
	snd_card_free(card);
	return err;
}

static void __devexit snd_atiixp_remove(struct pci_dev *pci)
{
	snd_card_free(pci_get_drvdata(pci));
	pci_set_drvdata(pci, NULL);
}