static int
ahc_pci_attach(device_t dev)
{
struct ahc_pci_identity *entry;
struct ahc_softc *ahc;
char *name;
int error;
entry = ahc_find_pci_device(dev);
if (entry == NULL)
return (ENXIO);
/*
* Allocate a softc for this card and
* set it up for attachment by our
* common detect routine.
*/
name = malloc(strlen(device_get_nameunit(dev)) + 1, M_DEVBUF, M_NOWAIT);
if (name == NULL)
return (ENOMEM);
strcpy(name, device_get_nameunit(dev));
ahc = ahc_alloc(dev, name);
if (ahc == NULL)
return (ENOMEM);
ahc_set_unit(ahc, device_get_unit(dev));
/*
* Should we bother disabling 39Bit addressing
* based on installed memory?
*/
if (sizeof(bus_addr_t) > 4)
ahc->flags |= AHC_39BIT_ADDRESSING;
/* Allocate a dmatag for our SCB DMA maps */
error = aic_dma_tag_create(ahc, /*parent*/bus_get_dma_tag(dev),
/*alignment*/1, /*boundary*/0,
(ahc->flags & AHC_39BIT_ADDRESSING)
? 0x7FFFFFFFFFLL
: BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
/*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
/*nsegments*/AHC_NSEG,
/*maxsegsz*/AHC_MAXTRANSFER_SIZE,
/*flags*/0,
&ahc->parent_dmat);
if (error != 0) {
printf("ahc_pci_attach: Could not allocate DMA tag "
"- error %d\n", error);
ahc_free(ahc);
return (ENOMEM);
}
ahc->dev_softc = dev;
error = ahc_pci_config(ahc, entry);
if (error != 0) {
ahc_free(ahc);
return (error);
}
ahc_attach(ahc);
return (0);
}
static int
ahc_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
char buf[80];
const uint64_t mask_39bit = 0x7FFFFFFFFFULL;
struct ahc_softc *ahc;
ahc_dev_softc_t pci;
const struct ahc_pci_identity *entry;
char *name;
int error;
struct device *dev = &pdev->dev;
pci = pdev;
entry = ahc_find_pci_device(pci);
if (entry == NULL)
return (-ENODEV);
/*
* Allocate a softc for this card and
* set it up for attachment by our
* common detect routine.
*/
sprintf(buf, "ahc_pci:%d:%d:%d",
ahc_get_pci_bus(pci),
ahc_get_pci_slot(pci),
ahc_get_pci_function(pci));
name = kmalloc(strlen(buf) + 1, GFP_ATOMIC);
if (name == NULL)
return (-ENOMEM);
strcpy(name, buf);
ahc = ahc_alloc(NULL, name);
if (ahc == NULL)
return (-ENOMEM);
if (pci_enable_device(pdev)) {
ahc_free(ahc);
return (-ENODEV);
}
pci_set_master(pdev);
if (sizeof(dma_addr_t) > 4
&& ahc->features & AHC_LARGE_SCBS
&& dma_set_mask(dev, mask_39bit) == 0
&& dma_get_required_mask(dev) > DMA_BIT_MASK(32)) {
ahc->flags |= AHC_39BIT_ADDRESSING;
} else {
if (dma_set_mask(dev, DMA_BIT_MASK(32))) {
ahc_free(ahc);
;
return (-ENODEV);
}
}
ahc->dev_softc = pci;
error = ahc_pci_config(ahc, entry);
if (error != 0) {
ahc_free(ahc);
return (-error);
}
/*
* Second Function PCI devices need to inherit some
* settings from function 0.
*/
if ((ahc->features & AHC_MULTI_FUNC) && PCI_FUNC(pdev->devfn) != 0)
ahc_linux_pci_inherit_flags(ahc);
pci_set_drvdata(pdev, ahc);
ahc_linux_register_host(ahc, &aic7xxx_driver_template);
return (0);
}
