// component-destructor
// (see "Management of Cards and Components")
static int snd_vortex_dev_free(struct snd_device *device)
{
vortex_t *vortex = device->device_data;
vortex_gameport_unregister(vortex);
vortex_core_shutdown(vortex);
// Take down PCI interface.
free_irq(vortex->irq, vortex);
iounmap(vortex->mmio);
pci_release_regions(vortex->pci_dev);
pci_disable_device(vortex->pci_dev);
kfree(vortex);
return 0;
}
// component-destructor
// (see "Management of Cards and Components")
static int snd_vortex_dev_free(snd_device_t * device)
{
vortex_t *vortex = device->device_data;
vortex_gameport_unregister(vortex);
vortex_core_shutdown(vortex);
// Take down PCI interface.
synchronize_irq(vortex->irq);
free_irq(vortex->irq, vortex);
pci_release_regions(vortex->pci_dev);
pci_disable_device(vortex->pci_dev);
kfree(vortex);
return 0;
}
// chip-specific constructor
// (see "Management of Cards and Components")
static int __devinit
snd_vortex_create(snd_card_t * card, struct pci_dev *pci, vortex_t ** rchip)
{
vortex_t *chip;
int err;
static snd_device_ops_t ops = {
.dev_free = snd_vortex_dev_free,
};
*rchip = NULL;
// check PCI availability (DMA).
if ((err = pci_enable_device(pci)) < 0)
return err;
if (!pci_dma_supported(pci, VORTEX_DMA_MASK)) {
printk(KERN_ERR "error to set DMA mask\n");
return -ENXIO;
}
pci_set_dma_mask(pci, VORTEX_DMA_MASK);
chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
if (chip == NULL)
return -ENOMEM;
chip->card = card;
// initialize the stuff
chip->pci_dev = pci;
chip->io = pci_resource_start(pci, 0);
chip->vendor = pci->vendor;
chip->device = pci->device;
chip->card = card;
chip->irq = -1;
// (1) PCI resource allocation
// Get MMIO area
//
if ((err = pci_request_regions(pci, CARD_NAME_SHORT)) != 0)
goto regions_out;
chip->mmio = ioremap_nocache(pci_resource_start(pci, 0),
pci_resource_len(pci, 0));
if (!chip->mmio) {
printk(KERN_ERR "MMIO area remap failed.\n");
err = -ENOMEM;
goto ioremap_out;
}
/* Init audio core.
* This must be done before we do request_irq otherwise we can get spurious
* interupts that we do not handle properly and make a mess of things */
if ((err = vortex_core_init(chip)) != 0) {
printk(KERN_ERR "hw core init failed\n");
goto core_out;
}
if ((err = request_irq(pci->irq, vortex_interrupt,
SA_INTERRUPT | SA_SHIRQ, CARD_NAME_SHORT,
chip)) != 0) {
printk(KERN_ERR "cannot grab irq\n");
goto irq_out;
}
chip->irq = pci->irq;
pci_set_master(pci);
// End of PCI setup.
// Register alsa root device.
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
goto alloc_out;
}
*rchip = chip;
return 0;
alloc_out:
synchronize_irq(chip->irq);
free_irq(chip->irq, chip);
irq_out:
vortex_core_shutdown(chip);
core_out:
iounmap(chip->mmio);
ioremap_out:
pci_release_regions(chip->pci_dev);
regions_out:
pci_disable_device(chip->pci_dev);
//FIXME: this not the right place to unregister the gameport
vortex_gameport_unregister(chip);
return err;
}
// chip-specific constructor
// (see "Management of Cards and Components")
static int
snd_vortex_create(struct snd_card *card, struct pci_dev *pci, vortex_t ** rchip)
{
vortex_t *chip;
int err;
static struct snd_device_ops ops = {
.dev_free = snd_vortex_dev_free,
};
*rchip = NULL;
// check PCI availability (DMA).
if ((err = pci_enable_device(pci)) < 0)
return err;
if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 ||
pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
pr_err( "error to set DMA mask\n");
pci_disable_device(pci);
return -ENXIO;
}
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (chip == NULL) {
pci_disable_device(pci);
return -ENOMEM;
}
chip->card = card;
// initialize the stuff
chip->pci_dev = pci;
chip->io = pci_resource_start(pci, 0);
chip->vendor = pci->vendor;
chip->device = pci->device;
chip->card = card;
chip->irq = -1;
// (1) PCI resource allocation
// Get MMIO area
//
if ((err = pci_request_regions(pci, CARD_NAME_SHORT)) != 0)
goto regions_out;
chip->mmio = pci_ioremap_bar(pci, 0);
if (!chip->mmio) {
pr_err( "MMIO area remap failed.\n");
err = -ENOMEM;
goto ioremap_out;
}
/* Init audio core.
* This must be done before we do request_irq otherwise we can get spurious
* interrupts that we do not handle properly and make a mess of things */
if ((err = vortex_core_init(chip)) != 0) {
pr_err( "hw core init failed\n");
goto core_out;
}
if ((err = request_irq(pci->irq, vortex_interrupt,
IRQF_SHARED, KBUILD_MODNAME,
chip)) != 0) {
pr_err( "cannot grab irq\n");
goto irq_out;
}
chip->irq = pci->irq;
pci_set_master(pci);
// End of PCI setup.
// Register alsa root device.
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
goto alloc_out;
}
*rchip = chip;
return 0;
alloc_out:
free_irq(chip->irq, chip);
irq_out:
vortex_core_shutdown(chip);
core_out:
iounmap(chip->mmio);
ioremap_out:
pci_release_regions(chip->pci_dev);
regions_out:
pci_disable_device(chip->pci_dev);
//FIXME: this not the right place to unregister the gameport
vortex_gameport_unregister(chip);
kfree(chip);
return err;
}
