hda_intel.c

	chip->capture_streams = (gcap >> 8) & 0x0f;
	chip->playback_streams = (gcap >> 12) & 0x0f;
	if (!chip->playback_streams && !chip->capture_streams) {
		/* gcap didn't give any info, switching to old method */

		switch (chip->driver_type) {
		case AZX_DRIVER_ULI:
			chip->playback_streams = ULI_NUM_PLAYBACK;
			chip->capture_streams = ULI_NUM_CAPTURE;
			break;
		case AZX_DRIVER_ATIHDMI:
			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
			break;
		default:
			chip->playback_streams = ICH6_NUM_PLAYBACK;
			chip->capture_streams = ICH6_NUM_CAPTURE;
			break;
		}
	}
	chip->capture_index_offset = 0;
	chip->playback_index_offset = chip->capture_streams;
	chip->num_streams = chip->playback_streams + chip->capture_streams;
	chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
				GFP_KERNEL);
	if (!chip->azx_dev) {
		snd_printk(KERN_ERR "cannot malloc azx_dev\n");
		goto errout;
	}

	for (i = 0; i < chip->num_streams; i++) {
		/* allocate memory for the BDL for each stream */
		err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
					  snd_dma_pci_data(chip->pci),
					  BDL_SIZE, &chip->azx_dev[i].bdl);
		if (err < 0) {
			snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
			goto errout;
		}
	}
	/* allocate memory for the position buffer */
	err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
				  snd_dma_pci_data(chip->pci),
				  chip->num_streams * 8, &chip->posbuf);
	if (err < 0) {
		snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
		goto errout;
	}
	/* allocate CORB/RIRB */
	if (!chip->single_cmd) {
		err = azx_alloc_cmd_io(chip);
		if (err < 0)
			goto errout;
	}

	/* initialize streams */
	azx_init_stream(chip);

	/* initialize chip */
	azx_init_pci(chip);
	azx_init_chip(chip);

	/* codec detection */
	if (!chip->codec_mask) {
		snd_printk(KERN_ERR SFX "no codecs found!\n");
		err = -ENODEV;
		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, "HDA-Intel");
	strcpy(card->shortname, driver_short_names[chip->driver_type]);
	sprintf(card->longname, "%s at 0x%lx irq %i",
		card->shortname, chip->addr, chip->irq);

	*rchip = chip;
	return 0;

 errout:
	azx_free(chip);
	return err;
}

static void power_down_all_codecs(struct azx *chip)
{
#ifdef CONFIG_SND_HDA_POWER_SAVE
	/* The codecs were powered up in snd_hda_codec_new().
	 * Now all initialization done, so turn them down if possible
	 */
	struct hda_codec *codec;
	list_for_each_entry(codec, &chip->bus->codec_list, list) {
		snd_hda_power_down(codec);
	}
#endif
}

static int __devinit azx_probe(struct pci_dev *pci,
			       const struct pci_device_id *pci_id)
{
	static int dev;
	struct snd_card *card;
	struct azx *chip;
	int err;

	if (dev >= SNDRV_CARDS)
		return -ENODEV;
	if (!enable[dev]) {
		dev++;
		return -ENOENT;
	}

	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
	if (!card) {
		snd_printk(KERN_ERR SFX "Error creating card!\n");
		return -ENOMEM;
	}

	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
	if (err < 0) {
		snd_card_free(card);
		return err;
	}
	card->private_data = chip;

	/* create codec instances */
	err = azx_codec_create(chip, model[dev], probe_mask[dev]);
	if (err < 0) {
		snd_card_free(card);
		return err;
	}

	/* create PCM streams */
	err = azx_pcm_create(chip);
	if (err < 0) {
		snd_card_free(card);
		return err;
	}

	/* create mixer controls */
	err = azx_mixer_create(chip);
	if (err < 0) {
		snd_card_free(card);
		return err;
	}

	snd_card_set_dev(card, &pci->dev);

	err = snd_card_register(card);
	if (err < 0) {
		snd_card_free(card);
		return err;
	}

	pci_set_drvdata(pci, card);
	chip->running = 1;
	power_down_all_codecs(chip);

	dev++;
	return err;
}

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

/* PCI IDs */
static struct pci_device_id azx_ids[] = {
	/* ICH 6..10 */
	{ PCI_DEVICE(0x8086, 0x2668), .driver_data = AZX_DRIVER_ICH },
	{ PCI_DEVICE(0x8086, 0x27d8), .driver_data = AZX_DRIVER_ICH },
	{ PCI_DEVICE(0x8086, 0x269a), .driver_data = AZX_DRIVER_ICH },
	{ PCI_DEVICE(0x8086, 0x284b), .driver_data = AZX_DRIVER_ICH },
	{ PCI_DEVICE(0x8086, 0x293e), .driver_data = AZX_DRIVER_ICH },
	{ PCI_DEVICE(0x8086, 0x293f), .driver_data = AZX_DRIVER_ICH },
	{ PCI_DEVICE(0x8086, 0x3a3e), .driver_data = AZX_DRIVER_ICH },
	{ PCI_DEVICE(0x8086, 0x3a6e), .driver_data = AZX_DRIVER_ICH },
	/* SCH */
	{ PCI_DEVICE(0x8086, 0x811b), .driver_data = AZX_DRIVER_SCH },
	/* ATI SB 450/600 */
	{ PCI_DEVICE(0x1002, 0x437b), .driver_data = AZX_DRIVER_ATI },
	{ PCI_DEVICE(0x1002, 0x4383), .driver_data = AZX_DRIVER_ATI },
	/* ATI HDMI */
	{ PCI_DEVICE(0x1002, 0x793b), .driver_data = AZX_DRIVER_ATIHDMI },
	{ PCI_DEVICE(0x1002, 0x7919), .driver_data = AZX_DRIVER_ATIHDMI },
	{ PCI_DEVICE(0x1002, 0x960f), .driver_data = AZX_DRIVER_ATIHDMI },
	{ PCI_DEVICE(0x1002, 0xaa00), .driver_data = AZX_DRIVER_ATIHDMI },
	{ PCI_DEVICE(0x1002, 0xaa08), .driver_data = AZX_DRIVER_ATIHDMI },
	{ PCI_DEVICE(0x1002, 0xaa10), .driver_data = AZX_DRIVER_ATIHDMI },
	{ PCI_DEVICE(0x1002, 0xaa18), .driver_data = AZX_DRIVER_ATIHDMI },
	{ PCI_DEVICE(0x1002, 0xaa20), .driver_data = AZX_DRIVER_ATIHDMI },
	{ PCI_DEVICE(0x1002, 0xaa28), .driver_data = AZX_DRIVER_ATIHDMI },
	{ PCI_DEVICE(0x1002, 0xaa30), .driver_data = AZX_DRIVER_ATIHDMI },
	{ PCI_DEVICE(0x1002, 0xaa38), .driver_data = AZX_DRIVER_ATIHDMI },
	{ PCI_DEVICE(0x1002, 0xaa40), .driver_data = AZX_DRIVER_ATIHDMI },
	{ PCI_DEVICE(0x1002, 0xaa48), .driver_data = AZX_DRIVER_ATIHDMI },
	/* VIA VT8251/VT8237A */
	{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
	/* SIS966 */
	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
	/* ULI M5461 */
	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
	/* NVIDIA MCP */
	{ PCI_DEVICE(0x10de, 0x026c), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x0371), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x03e4), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x03f0), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x044a), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x044b), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x055c), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x055d), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x0774), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x0775), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x0776), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x0777), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x07fc), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x07fd), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x0ac0), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x0ac1), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x0ac2), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x0ac3), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x0bd4), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x0bd5), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x0bd6), .driver_data = AZX_DRIVER_NVIDIA },
	{ PCI_DEVICE(0x10de, 0x0bd7), .driver_data = AZX_DRIVER_NVIDIA },
	{ 0, }
};
MODULE_DEVICE_TABLE(pci, azx_ids);

/* pci_driver definition */
static struct pci_driver driver = {
	.name = "HDA Intel",
	.id_table = azx_ids,
	.probe = azx_probe,
	.remove = __devexit_p(azx_remove),
#ifdef CONFIG_PM
	.suspend = azx_suspend,
	.resume = azx_resume,
#endif
};

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

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

module_init(alsa_card_azx_init)
module_exit(alsa_card_azx_exit)