Пример #1
0
static int
ahc_aha494XX_setup(struct ahc_softc *ahc)
{
	ahc_dev_softc_t pci;

	pci = ahc->dev_softc;
	switch (ahc_get_pci_slot(pci)) {
	case AHC_494X_SLOT_CHANNEL_A:
		ahc->channel = 'A';
		break;
	case AHC_494X_SLOT_CHANNEL_B:
		ahc->channel = 'B';
		break;
	case AHC_494X_SLOT_CHANNEL_C:
		ahc->channel = 'C';
		break;
	case AHC_494X_SLOT_CHANNEL_D:
		ahc->channel = 'D';
		break;
	default:
		printf("adapter at unexpected slot %d\n"
		       "unable to map to a channel\n",
		       ahc_get_pci_slot(pci));
		ahc->channel = 'A';
	}
	ahc->flags |= AHC_LARGE_SEEPROM;
	return (0);
}
Пример #2
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;
	struct		 ahc_pci_identity *entry;
	char		*name;
	int		 error;

	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 = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT);
	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_linux_get_memsize() > 0x80000000
	 && pci_set_dma_mask(pdev, mask_39bit) == 0) {
		ahc->flags |= AHC_39BIT_ADDRESSING;
	} else {
		if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
			printk(KERN_WARNING "aic7xxx: No suitable DMA available.\n");
                	return (-ENODEV);
		}
	}
	ahc->dev_softc = pci;
	error = ahc_pci_config(ahc, entry);
	if (error != 0) {
		ahc_free(ahc);
		return (-error);
	}
	pci_set_drvdata(pdev, ahc);
	ahc_linux_register_host(ahc, &aic7xxx_driver_template);
	return (0);
}
Пример #3
0
int
ahc_pci_map_registers(struct ahc_softc *ahc)
{
	uint32_t command;
	u_long	 base;
	uint8_t	__iomem *maddr;
	int	 error;

	/*
	 * If its allowed, we prefer memory mapped access.
	 */
	command = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, 4);
	command &= ~(PCIM_CMD_PORTEN|PCIM_CMD_MEMEN);
	base = 0;
	maddr = NULL;
	error = ahc_linux_pci_reserve_mem_region(ahc, &base, &maddr);
	if (error == 0) {
		ahc->platform_data->mem_busaddr = base;
		ahc->tag = BUS_SPACE_MEMIO;
		ahc->bsh.maddr = maddr;
		ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND,
				     command | PCIM_CMD_MEMEN, 4);

		/*
		 * Do a quick test to see if memory mapped
		 * I/O is functioning correctly.
		 */
		if (ahc_pci_test_register_access(ahc) != 0) {

			printf("aic7xxx: PCI Device %d:%d:%d "
			       "failed memory mapped test.  Using PIO.\n",
			       ahc_get_pci_bus(ahc->dev_softc),
			       ahc_get_pci_slot(ahc->dev_softc),
			       ahc_get_pci_function(ahc->dev_softc));
			iounmap(maddr);
			release_mem_region(ahc->platform_data->mem_busaddr,
					   0x1000);
			ahc->bsh.maddr = NULL;
			maddr = NULL;
		} else
			command |= PCIM_CMD_MEMEN;
	} else {
		printf("aic7xxx: PCI%d:%d:%d MEM region 0x%lx "
		       "unavailable. Cannot memory map device.\n",
		       ahc_get_pci_bus(ahc->dev_softc),
		       ahc_get_pci_slot(ahc->dev_softc),
		       ahc_get_pci_function(ahc->dev_softc),
		       base);
	}

	/*
	 * We always prefer memory mapped access.
	 */
	if (maddr == NULL) {

		error = ahc_linux_pci_reserve_io_region(ahc, &base);
		if (error == 0) {
			ahc->tag = BUS_SPACE_PIO;
			ahc->bsh.ioport = base;
			command |= PCIM_CMD_PORTEN;
		} else {
			printf("aic7xxx: PCI%d:%d:%d IO region 0x%lx[0..255] "
			       "unavailable. Cannot map device.\n",
			       ahc_get_pci_bus(ahc->dev_softc),
			       ahc_get_pci_slot(ahc->dev_softc),
			       ahc_get_pci_function(ahc->dev_softc),
			       base);
		}
	}
	ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, command, 4);
	return (error);
}
Пример #4
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;
	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 = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT);
	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_32BIT_MASK) {
		ahc->flags |= AHC_39BIT_ADDRESSING;
	} else {
		if (dma_set_mask(dev, DMA_32BIT_MASK)) {
			ahc_free(ahc);
			printk(KERN_WARNING "aic7xxx: No suitable DMA available.\n");
                	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);
}