Пример #1
0
static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
	ata_index_t index;
	ide_pci_device_t *d = &cyrix_chipsets[id->driver_data];

	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_bars(dev, 1<<2)) {
		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 "cs5520: No suitable DMA available.\n");
		return -ENODEV;
	}

	index.all = 0xf0f0;

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

	ide_pci_setup_ports(dev, d, 14, &index);

	if((index.b.low & 0xf0) != 0xf0)
		probe_hwif_init(&ide_hwifs[index.b.low]);
	if((index.b.high & 0xf0) != 0xf0)
		probe_hwif_init(&ide_hwifs[index.b.high]);
	return 0;
}
Пример #2
0
static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
	u8 pcicfg;
	void __iomem *iomap[5];
	static struct ata_probe_ent probe[2];
	int ports = 0;

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

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

	if ((pcicfg & 0x40) == 0) {
		printk(KERN_WARNING DRV_NAME ": DMA mode disabled. Enabling.\n");
		pci_write_config_byte(dev, 0x60, pcicfg | 0x40);
	}

	/* Perform set up for DMA */
	if (pci_enable_device_bars(dev, 1<<2)) {
		printk(KERN_ERR DRV_NAME ": unable to configure BAR2.\n");
		return -ENODEV;
	}
	pci_set_master(dev);
	if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
		printk(KERN_ERR DRV_NAME ": unable to configure DMA mask.\n");
		return -ENODEV;
	}
	if (pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK)) {
		printk(KERN_ERR DRV_NAME ": unable to configure consistent DMA mask.\n");
		return -ENODEV;
	}

	/* Map IO ports */
	iomap[0] = devm_ioport_map(&dev->dev, 0x1F0, 8);
	iomap[1] = devm_ioport_map(&dev->dev, 0x3F6, 1);
	iomap[2] = devm_ioport_map(&dev->dev, 0x170, 8);
	iomap[3] = devm_ioport_map(&dev->dev, 0x376, 1);
	iomap[4] = pcim_iomap(dev, 2, 0);

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

	/* We have to do our own plumbing as the PCI setup for this
	   chipset is non-standard so we can't punt to the libata code */

	INIT_LIST_HEAD(&probe[0].node);
	probe[0].dev = pci_dev_to_dev(dev);
	probe[0].port_ops = &cs5520_port_ops;
	probe[0].sht = &cs5520_sht;
	probe[0].pio_mask = 0x1F;
	probe[0].mwdma_mask = id->driver_data;
	probe[0].irq = 14;
	probe[0].irq_flags = 0;
	probe[0].port_flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST;
	probe[0].n_ports = 1;
	probe[0].port[0].cmd_addr = iomap[0];
	probe[0].port[0].ctl_addr = iomap[1];
	probe[0].port[0].altstatus_addr = iomap[1];
	probe[0].port[0].bmdma_addr = iomap[4];

	/* The secondary lurks at different addresses but is otherwise
	   the same beastie */

	probe[1] = probe[0];
	INIT_LIST_HEAD(&probe[1].node);
	probe[1].irq = 15;
	probe[1].port[0].cmd_addr = iomap[2];
	probe[1].port[0].ctl_addr = iomap[3];
	probe[1].port[0].altstatus_addr = iomap[3];
	probe[1].port[0].bmdma_addr = iomap[4] + 8;

	/* Let libata fill in the port details */
	ata_std_ports(&probe[0].port[0]);
	ata_std_ports(&probe[1].port[0]);

	/* Now add the ports that are active */
	if (pcicfg & 1)
		ports += ata_device_add(&probe[0]);
	if (pcicfg & 2)
		ports += ata_device_add(&probe[1]);
	if (ports)
		return 0;
	return -ENODEV;
}
Пример #3
0
static int __devinit 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	= 0x1f,
		.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_printk(KERN_WARNING, &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_bars(pdev, 1<<2)) {
		printk(KERN_ERR DRV_NAME ": unable to configure BAR2.\n");
		return -ENODEV;
	}

	if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
		printk(KERN_ERR DRV_NAME ": unable to configure DMA mask.\n");
		return -ENODEV;
	}
	if (pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
		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_sff_interrupt, 0, DRV_NAME, host);
		if (rc)
			return rc;

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

	return ata_host_register(host, &cs5520_sht);
}

#ifdef CONFIG_PM
/**
 *	cs5520_reinit_one	-	device resume
 *	@pdev: PCI device
 *
 *	Do any reconfiguration work needed by a resume from RAM. We need
 *	to restore DMA mode support on BIOSen which disabled it
 */

static int cs5520_reinit_one(struct pci_dev *pdev)
{
	struct ata_host *host = dev_get_drvdata(&pdev->dev);
	u8 pcicfg;
	int rc;

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

	pci_read_config_byte(pdev, 0x60, &pcicfg);
	if ((pcicfg & 0x40) == 0)
		pci_write_config_byte(pdev, 0x60, pcicfg | 0x40);

	ata_host_resume(host);
	return 0;
}

/**
 *	cs5520_pci_device_suspend	-	device suspend
 *	@pdev: PCI device
 *
 *	We have to cut and waste bits from the standard method because
 *	the 5520 is a bit odd and not just a pure ATA device. As a result
 *	we must not disable it. The needed code is short and this avoids
 *	chip specific mess in the core code.
 */

static int cs5520_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
{
	struct ata_host *host = dev_get_drvdata(&pdev->dev);
	int rc = 0;

	rc = ata_host_suspend(host, mesg);
	if (rc)
		return rc;

	pci_save_state(pdev);
	return 0;
}
#endif /* CONFIG_PM */

/* For now keep DMA off. We can set it for all but A rev CS5510 once the
   core ATA code can handle it */

static const struct pci_device_id pata_cs5520[] = {
	{ PCI_VDEVICE(CYRIX, PCI_DEVICE_ID_CYRIX_5510), },
	{ PCI_VDEVICE(CYRIX, PCI_DEVICE_ID_CYRIX_5520), },

	{ },
};

static struct pci_driver cs5520_pci_driver = {
	.name 		= DRV_NAME,
	.id_table	= pata_cs5520,
	.probe 		= cs5520_init_one,
	.remove		= ata_pci_remove_one,
#ifdef CONFIG_PM
	.suspend	= cs5520_pci_device_suspend,
	.resume		= cs5520_reinit_one,
#endif
};

static int __init cs5520_init(void)
{
	return pci_register_driver(&cs5520_pci_driver);
}

static void __exit cs5520_exit(void)
{
	pci_unregister_driver(&cs5520_pci_driver);
}
Пример #4
0
/*
 * To backport b718989d correctly pcibios_enable_device()
 * is required but we don't have access to it on modules
 * as its an architecture specific routine that is not
 * exported and as such only core kernel code has access
 * to it. We implement a sloppy work around for backporting
 * this.
 */
int pci_enable_device_mem(struct pci_dev *dev)
{
	int bars = pci_select_bars(dev, IORESOURCE_MEM);

	return pci_enable_device_bars(dev, bars);
}
Пример #5
0
static int __devinit cs5520_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
	struct ata_port_info pi = {
		.flags		= ATA_FLAG_SLAVE_POSS,
		.pio_mask	= 0x1f,
		.port_ops	= &cs5520_port_ops,
	};
	const struct ata_port_info *ppi[2];
	u8 pcicfg;
	void *iomap[5];
	struct ata_host *host;
	struct ata_ioports *ioaddr;
	int i, 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_printk(KERN_WARNING, &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_bars(pdev, 1<<2)) {
		printk(KERN_ERR DRV_NAME ": unable to configure BAR2.\n");
		return -ENODEV;
	}

	if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
		printk(KERN_ERR DRV_NAME ": unable to configure DMA mask.\n");
		return -ENODEV;
	}
	if (pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
		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, 0x1F0, 8);
	iomap[1] = devm_ioport_map(&pdev->dev, 0x3F6, 1);
	iomap[2] = devm_ioport_map(&pdev->dev, 0x170, 8);
	iomap[3] = devm_ioport_map(&pdev->dev, 0x376, 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_std_ports(ioaddr);

	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_std_ports(ioaddr);

	/* 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_interrupt, 0, DRV_NAME, host);
		if (rc)
			return rc;

		if (i == 0)
			host->irq = irq[0];
		else
			host->irq2 = irq[1];
	}

	return ata_host_register(host, &cs5520_sht);
}

/**
 *	cs5520_remove_one	-	device unload
 *	@pdev: PCI device being removed
 *
 *	Handle an unplug/unload event for a PCI device. Unload the
 *	PCI driver but do not use the default handler as we manage
 *	resources ourself and *MUST NOT* disable the device as it has
 *	other functions.
 */

static void __devexit cs5520_remove_one(struct pci_dev *pdev)
{
	struct device *dev = pci_dev_to_dev(pdev);
	struct ata_host *host = dev_get_drvdata(dev);

	ata_host_detach(host);
}

#ifdef CONFIG_PM
/**
 *	cs5520_reinit_one	-	device resume
 *	@pdev: PCI device
 *
 *	Do any reconfiguration work needed by a resume from RAM. We need
 *	to restore DMA mode support on BIOSen which disabled it
 */

static int cs5520_reinit_one(struct pci_dev *pdev)
{
	u8 pcicfg;
	pci_read_config_byte(pdev, 0x60, &pcicfg);
	if ((pcicfg & 0x40) == 0)
		pci_write_config_byte(pdev, 0x60, pcicfg | 0x40);
	return ata_pci_device_resume(pdev);
}