C++ (Cpp) snd_als300_ac97 Exemples

Exemple #1

Fichier : als300.c Projet : AlexShiLucky/linux

static int snd_als300_create(struct snd_card *card,
			     struct pci_dev *pci, int chip_type,
			     struct snd_als300 **rchip)
{
	struct snd_als300 *chip;
	void *irq_handler;
	int err;

	static struct snd_device_ops ops = {
		.dev_free = snd_als300_dev_free,
	};
	*rchip = NULL;

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

	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(28)) < 0 ||
		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(28)) < 0) {
		dev_err(card->dev, "error setting 28bit DMA mask\n");
		pci_disable_device(pci);
		return -ENXIO;
	}
	pci_set_master(pci);

	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
	if (chip == NULL) {
		pci_disable_device(pci);
		return -ENOMEM;
	}

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

	if ((err = pci_request_regions(pci, "ALS300")) < 0) {
		kfree(chip);
		pci_disable_device(pci);
		return err;
	}
	chip->port = pci_resource_start(pci, 0);

	if (chip->chip_type == DEVICE_ALS300_PLUS)
		irq_handler = snd_als300plus_interrupt;
	else
		irq_handler = snd_als300_interrupt;

	if (request_irq(pci->irq, irq_handler, IRQF_SHARED,
			KBUILD_MODNAME, chip)) {
		dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
		snd_als300_free(chip);
		return -EBUSY;
	}
	chip->irq = pci->irq;


	snd_als300_init(chip);

	err = snd_als300_ac97(chip);
	if (err < 0) {
		dev_err(card->dev, "Could not create ac97\n");
		snd_als300_free(chip);
		return err;
	}

	if ((err = snd_als300_new_pcm(chip)) < 0) {
		dev_err(card->dev, "Could not create PCM\n");
		snd_als300_free(chip);
		return err;
	}

	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
						chip, &ops)) < 0) {
		snd_als300_free(chip);
		return err;
	}

	*rchip = chip;
	return 0;
}

Exemple #2

Fichier : als300.c Projet : rrowicki/Chrono_Kernel-1

static int __devinit snd_als300_create(struct snd_card *card,
				       struct pci_dev *pci, int chip_type,
				       struct snd_als300 **rchip)
{
	struct snd_als300 *chip;
	void *irq_handler;
	int err;

	static struct snd_device_ops ops = {
		.dev_free = snd_als300_dev_free,
	};
	*rchip = NULL;

	snd_als300_dbgcallenter();
	if ((err = pci_enable_device(pci)) < 0)
		return err;

	if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
		pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
;
		pci_disable_device(pci);
		return -ENXIO;
	}
	pci_set_master(pci);

	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
	if (chip == NULL) {
		pci_disable_device(pci);
		return -ENOMEM;
	}

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

	if ((err = pci_request_regions(pci, "ALS300")) < 0) {
		kfree(chip);
		pci_disable_device(pci);
		return err;
	}
	chip->port = pci_resource_start(pci, 0);

	if (chip->chip_type == DEVICE_ALS300_PLUS)
		irq_handler = snd_als300plus_interrupt;
	else
		irq_handler = snd_als300_interrupt;

	if (request_irq(pci->irq, irq_handler, IRQF_SHARED,
			card->shortname, chip)) {
;
		snd_als300_free(chip);
		return -EBUSY;
	}
	chip->irq = pci->irq;


	snd_als300_init(chip);

	err = snd_als300_ac97(chip);
	if (err < 0) {
;
		snd_als300_free(chip);
		return err;
	}

	if ((err = snd_als300_new_pcm(chip)) < 0) {
;
		snd_als300_free(chip);
		return err;
	}

	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
						chip, &ops)) < 0) {
		snd_als300_free(chip);
		return err;
	}

	snd_card_set_dev(card, &pci->dev);

	*rchip = chip;
	snd_als300_dbgcallleave();
	return 0;
}