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); }