Пример #1
0
static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
	const struct ide_port_info *d = &cyrix_chipset;
	hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL };

	ide_setup_pci_noise(dev, d);

	/* We must not grab the entire device, it has 'ISA' space in its
	 * BARS too and we will freak out other bits of the kernel
	 */
	if (pci_enable_device_io(dev)) {
		printk(KERN_WARNING "%s: Unable to enable 55x0.\n", d->name);
		return -ENODEV;
	}
	pci_set_master(dev);
	if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
		printk(KERN_WARNING "%s: No suitable DMA available.\n",
			d->name);
		return -ENODEV;
	}

	/*
	 *	Now the chipset is configured we can let the core
	 *	do all the device setup for us
	 */

	ide_pci_setup_ports(dev, d, 14, &hw[0], &hws[0]);

	return ide_host_add(d, hws, NULL);
}
Пример #2
0
static int __init cs5535_gpio_probe(struct pci_dev *pdev,
		const struct pci_device_id *pci_id)
{
	int err;
	ulong mask_orig = mask;

	/* There are two ways to get the GPIO base address; one is by
	 * fetching it from MSR_LBAR_GPIO, the other is by reading the
	 * PCI BAR info.  The latter method is easier (especially across
	 * different architectures), so we'll stick with that for now.  If
	 * it turns out to be unreliable in the face of crappy BIOSes, we
	 * can always go back to using MSRs.. */

	err = pci_enable_device_io(pdev);
	if (err) {
		dev_err(&pdev->dev, "can't enable device IO\n");
		goto done;
	}

	err = pci_request_region(pdev, GPIO_BAR, DRV_NAME);
	if (err) {
		dev_err(&pdev->dev, "can't alloc PCI BAR #%d\n", GPIO_BAR);
		goto done;
	}

	/* set up the driver-specific struct */
	cs5535_gpio_chip.base = pci_resource_start(pdev, GPIO_BAR);
	cs5535_gpio_chip.pdev = pdev;
	spin_lock_init(&cs5535_gpio_chip.lock);

	dev_info(&pdev->dev, "allocated PCI BAR #%d: base 0x%llx\n", GPIO_BAR,
			(unsigned long long) cs5535_gpio_chip.base);

	/* mask out reserved pins */
	mask &= 0x1F7FFFFF;

	/* do not allow pin 28, Power Button, as there's special handling
	 * in the PMC needed. (note 12, p. 48) */
	mask &= ~(1 << 28);

	if (mask_orig != mask)
		dev_info(&pdev->dev, "mask changed from 0x%08lX to 0x%08lX\n",
				mask_orig, mask);

	/* finally, register with the generic GPIO API */
	err = gpiochip_add(&cs5535_gpio_chip.chip);
	if (err)
		goto release_region;

	dev_info(&pdev->dev, DRV_NAME ": GPIO support successfully loaded.\n");
	return 0;

release_region:
	pci_release_region(pdev, GPIO_BAR);
done:
	return err;
}
Пример #3
0
static int cs5520_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
	static const unsigned int cmd_port[] = { 0x1F0, 0x170 };
	static const unsigned int ctl_port[] = { 0x3F6, 0x376 };
	struct ata_port_info pi = {
		.flags		= ATA_FLAG_SLAVE_POSS,
		.pio_mask	= ATA_PIO4,
		.port_ops	= &cs5520_port_ops,
	};
	const struct ata_port_info *ppi[2];
	u8 pcicfg;
	void __iomem *iomap[5];
	struct ata_host *host;
	struct ata_ioports *ioaddr;
	int i, rc;

	rc = pcim_enable_device(pdev);
	if (rc)
		return rc;

	/* IDE port enable bits */
	pci_read_config_byte(pdev, 0x60, &pcicfg);

	/* Check if the ATA ports are enabled */
	if ((pcicfg & 3) == 0)
		return -ENODEV;

	ppi[0] = ppi[1] = &ata_dummy_port_info;
	if (pcicfg & 1)
		ppi[0] = &pi;
	if (pcicfg & 2)
		ppi[1] = &pi;

	if ((pcicfg & 0x40) == 0) {
		dev_warn(&pdev->dev, "DMA mode disabled. Enabling.\n");
		pci_write_config_byte(pdev, 0x60, pcicfg | 0x40);
	}

	pi.mwdma_mask = id->driver_data;

	host = ata_host_alloc_pinfo(&pdev->dev, ppi, 2);
	if (!host)
		return -ENOMEM;

	/* Perform set up for DMA */
	if (pci_enable_device_io(pdev)) {
		printk(KERN_ERR DRV_NAME ": unable to configure BAR2.\n");
		return -ENODEV;
	}

	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
		printk(KERN_ERR DRV_NAME ": unable to configure DMA mask.\n");
		return -ENODEV;
	}
	if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
		printk(KERN_ERR DRV_NAME ": unable to configure consistent DMA mask.\n");
		return -ENODEV;
	}

	/* Map IO ports and initialize host accordingly */
	iomap[0] = devm_ioport_map(&pdev->dev, cmd_port[0], 8);
	iomap[1] = devm_ioport_map(&pdev->dev, ctl_port[0], 1);
	iomap[2] = devm_ioport_map(&pdev->dev, cmd_port[1], 8);
	iomap[3] = devm_ioport_map(&pdev->dev, ctl_port[1], 1);
	iomap[4] = pcim_iomap(pdev, 2, 0);

	if (!iomap[0] || !iomap[1] || !iomap[2] || !iomap[3] || !iomap[4])
		return -ENOMEM;

	ioaddr = &host->ports[0]->ioaddr;
	ioaddr->cmd_addr = iomap[0];
	ioaddr->ctl_addr = iomap[1];
	ioaddr->altstatus_addr = iomap[1];
	ioaddr->bmdma_addr = iomap[4];
	ata_sff_std_ports(ioaddr);

	ata_port_desc(host->ports[0],
		      "cmd 0x%x ctl 0x%x", cmd_port[0], ctl_port[0]);
	ata_port_pbar_desc(host->ports[0], 4, 0, "bmdma");

	ioaddr = &host->ports[1]->ioaddr;
	ioaddr->cmd_addr = iomap[2];
	ioaddr->ctl_addr = iomap[3];
	ioaddr->altstatus_addr = iomap[3];
	ioaddr->bmdma_addr = iomap[4] + 8;
	ata_sff_std_ports(ioaddr);

	ata_port_desc(host->ports[1],
		      "cmd 0x%x ctl 0x%x", cmd_port[1], ctl_port[1]);
	ata_port_pbar_desc(host->ports[1], 4, 8, "bmdma");

	/* activate the host */
	pci_set_master(pdev);
	rc = ata_host_start(host);
	if (rc)
		return rc;

	for (i = 0; i < 2; i++) {
		static const int irq[] = { 14, 15 };
		struct ata_port *ap = host->ports[i];

		if (ata_port_is_dummy(ap))
			continue;

		rc = devm_request_irq(&pdev->dev, irq[ap->port_no],
				      ata_bmdma_interrupt, 0, DRV_NAME, host);
		if (rc)
			return rc;

		ata_port_desc(ap, "irq %d", irq[i]);
	}

	return ata_host_register(host, &cs5520_sht);
}