port = port * 2;
for (i = 0; i < 2; i ++) {
if (pci_resource_start(pdev, port + i) == 0 ||
- pci_resource_len(pdev, port + i) == 0)
- return 0;
+ pci_resource_len(pdev, port + i) == 0)
+ return 0;
}
return 1;
}
/**
- * ata_pci_init_native_mode - Initialize native-mode driver
- * @pdev: pci device to be initialized
- * @port: array[2] of pointers to port info structures.
- * @ports: bitmap of ports present
- *
- * Utility function which allocates and initializes an
- * ata_probe_ent structure for a standard dual-port
- * PIO-based IDE controller. The returned ata_probe_ent
- * structure can be passed to ata_device_add(). The returned
- * ata_probe_ent structure should then be freed with kfree().
- *
- * The caller need only pass the address of the primary port, the
- * secondary will be deduced automatically. If the device has non
- * standard secondary port mappings this function can be called twice,
- * once for each interface.
+ * ata_pci_init_bmdma - acquire PCI BMDMA resources and init ATA host
+ * @host: target ATA host
+ *
+ * Acquire PCI BMDMA resources and initialize @host accordingly.
+ *
+ * LOCKING:
+ * Inherited from calling layer (may sleep).
+ *
+ * RETURNS:
+ * 0 on success, -errno otherwise.
*/
+int ata_pci_init_bmdma(struct ata_host *host)
+{
+ struct device *gdev = host->dev;
+ struct pci_dev *pdev = to_pci_dev(gdev);
+ int i, rc;
+
+ /* TODO: If we get no DMA mask we should fall back to PIO */
+ rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+ if (rc)
+ return rc;
+ rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+ if (rc)
+ return rc;
+
+ /* request and iomap DMA region */
+ rc = pcim_iomap_regions(pdev, 1 << 4, DRV_NAME);
+ if (rc) {
+ dev_printk(KERN_ERR, gdev, "failed to request/iomap BAR4\n");
+ return -ENOMEM;
+ }
+ host->iomap = pcim_iomap_table(pdev);
+
+ for (i = 0; i < 2; i++) {
+ struct ata_port *ap = host->ports[i];
+ void __iomem *bmdma = host->iomap[4] + 8 * i;
+
+ if (ata_port_is_dummy(ap))
+ continue;
+
+ ap->ioaddr.bmdma_addr = bmdma;
+ if ((!(ap->flags & ATA_FLAG_IGN_SIMPLEX)) &&
+ (ioread8(bmdma + 2) & 0x80))
+ host->flags |= ATA_HOST_SIMPLEX;
+ }
+
+ return 0;
+}
-struct ata_probe_ent *
-ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port, int ports)
+/**
+ * ata_pci_init_native_host - acquire native ATA resources and init host
+ * @host: target ATA host
+ *
+ * Acquire native PCI ATA resources for @host and initialize the
+ * first two ports of @host accordingly. Ports marked dummy are
+ * skipped and allocation failure makes the port dummy.
+ *
+ * LOCKING:
+ * Inherited from calling layer (may sleep).
+ *
+ * RETURNS:
+ * 0 if at least one port is initialized, -ENODEV if no port is
+ * available.
+ */
+int ata_pci_init_native_host(struct ata_host *host)
{
- struct ata_probe_ent *probe_ent;
- int i, p = 0;
- void __iomem * const *iomap;
-
- /* iomap BARs */
- for (i = 0; i < 4; i++) {
- if (pcim_iomap(pdev, i, 0) == NULL) {
- dev_printk(KERN_ERR, &pdev->dev,
- "failed to iomap PCI BAR %d\n", i);
- return NULL;
+ struct device *gdev = host->dev;
+ struct pci_dev *pdev = to_pci_dev(gdev);
+ unsigned int mask = 0;
+ int i, rc;
+
+ /* request, iomap BARs and init port addresses accordingly */
+ for (i = 0; i < 2; i++) {
+ struct ata_port *ap = host->ports[i];
+ int base = i * 2;
+ void __iomem * const *iomap;
+
+ if (ata_port_is_dummy(ap))
+ continue;
+
+ /* Discard disabled ports. Some controllers show
+ * their unused channels this way. Disabled ports are
+ * made dummy.
+ */
+ if (!ata_resources_present(pdev, i)) {
+ ap->ops = &ata_dummy_port_ops;
+ continue;
}
- }
- pcim_iomap(pdev, 4, 0); /* may fail */
- iomap = pcim_iomap_table(pdev);
-
- /* alloc and init probe_ent */
- probe_ent = ata_probe_ent_alloc(pci_dev_to_dev(pdev), port[0]);
- if (!probe_ent)
- return NULL;
-
- probe_ent->irq = pdev->irq;
- probe_ent->irq_flags = IRQF_SHARED;
-
- /* Discard disabled ports. Some controllers show their
- unused channels this way */
- if (ata_resources_present(pdev, 0) == 0)
- ports &= ~ATA_PORT_PRIMARY;
- if (ata_resources_present(pdev, 1) == 0)
- ports &= ~ATA_PORT_SECONDARY;
-
- if (ports & ATA_PORT_PRIMARY) {
- probe_ent->port[p].cmd_addr = iomap[0];
- probe_ent->port[p].altstatus_addr =
- probe_ent->port[p].ctl_addr = (void __iomem *)
- ((unsigned long)iomap[1] | ATA_PCI_CTL_OFS);
- if (iomap[4]) {
- if ((!(port[p]->flags & ATA_FLAG_IGN_SIMPLEX)) &&
- (ioread8(iomap[4] + 2) & 0x80))
- probe_ent->_host_flags |= ATA_HOST_SIMPLEX;
- probe_ent->port[p].bmdma_addr = iomap[4];
+ rc = pcim_iomap_regions(pdev, 0x3 << base, DRV_NAME);
+ if (rc) {
+ dev_printk(KERN_WARNING, gdev,
+ "failed to request/iomap BARs for port %d "
+ "(errno=%d)\n", i, rc);
+ if (rc == -EBUSY)
+ pcim_pin_device(pdev);
+ ap->ops = &ata_dummy_port_ops;
+ continue;
}
- ata_std_ports(&probe_ent->port[p]);
- p++;
+ host->iomap = iomap = pcim_iomap_table(pdev);
+
+ ap->ioaddr.cmd_addr = iomap[base];
+ ap->ioaddr.altstatus_addr =
+ ap->ioaddr.ctl_addr = (void __iomem *)
+ ((unsigned long)iomap[base + 1] | ATA_PCI_CTL_OFS);
+ ata_std_ports(&ap->ioaddr);
+
+ mask |= 1 << i;
}
- if (ports & ATA_PORT_SECONDARY) {
- probe_ent->port[p].cmd_addr = iomap[2];
- probe_ent->port[p].altstatus_addr =
- probe_ent->port[p].ctl_addr = (void __iomem *)
- ((unsigned long)iomap[3] | ATA_PCI_CTL_OFS);
- if (iomap[4]) {
- if ((!(port[p]->flags & ATA_FLAG_IGN_SIMPLEX)) &&
- (ioread8(iomap[4] + 10) & 0x80))
- probe_ent->_host_flags |= ATA_HOST_SIMPLEX;
- probe_ent->port[p].bmdma_addr = iomap[4] + 8;
- }
- ata_std_ports(&probe_ent->port[p]);
- probe_ent->pinfo2 = port[1];
- p++;
+ if (!mask) {
+ dev_printk(KERN_ERR, gdev, "no available native port\n");
+ return -ENODEV;
}
- probe_ent->n_ports = p;
- return probe_ent;
+ return 0;
}
-static struct ata_probe_ent *ata_pci_init_legacy_port(struct pci_dev *pdev,
- struct ata_port_info **port, int port_mask)
+/**
+ * ata_pci_prepare_native_host - helper to prepare native PCI ATA host
+ * @pdev: target PCI device
+ * @ppi: array of port_info, must be enough for two ports
+ * @r_host: out argument for the initialized ATA host
+ *
+ * Helper to allocate ATA host for @pdev, acquire all native PCI
+ * resources and initialize it accordingly in one go.
+ *
+ * LOCKING:
+ * Inherited from calling layer (may sleep).
+ *
+ * RETURNS:
+ * 0 on success, -errno otherwise.
+ */
+int ata_pci_prepare_native_host(struct pci_dev *pdev,
+ const struct ata_port_info * const * ppi,
+ struct ata_host **r_host)
{
- struct ata_probe_ent *probe_ent;
- void __iomem *iomap[5] = { }, *bmdma;
-
- if (port_mask & ATA_PORT_PRIMARY) {
- iomap[0] = devm_ioport_map(&pdev->dev, ATA_PRIMARY_CMD, 8);
- iomap[1] = devm_ioport_map(&pdev->dev, ATA_PRIMARY_CTL, 1);
- if (!iomap[0] || !iomap[1])
- return NULL;
+ struct ata_host *host;
+ int rc;
+
+ if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL))
+ return -ENOMEM;
+
+ host = ata_host_alloc_pinfo(&pdev->dev, ppi, 2);
+ if (!host) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "failed to allocate ATA host\n");
+ rc = -ENOMEM;
+ goto err_out;
}
- if (port_mask & ATA_PORT_SECONDARY) {
- iomap[2] = devm_ioport_map(&pdev->dev, ATA_SECONDARY_CMD, 8);
- iomap[3] = devm_ioport_map(&pdev->dev, ATA_SECONDARY_CTL, 1);
- if (!iomap[2] || !iomap[3])
- return NULL;
+ rc = ata_pci_init_native_host(host);
+ if (rc)
+ goto err_out;
+
+ /* init DMA related stuff */
+ rc = ata_pci_init_bmdma(host);
+ if (rc)
+ goto err_bmdma;
+
+ devres_remove_group(&pdev->dev, NULL);
+ *r_host = host;
+ return 0;
+
+ err_bmdma:
+ /* This is necessary because PCI and iomap resources are
+ * merged and releasing the top group won't release the
+ * acquired resources if some of those have been acquired
+ * before entering this function.
+ */
+ pcim_iounmap_regions(pdev, 0xf);
+ err_out:
+ devres_release_group(&pdev->dev, NULL);
+ return rc;
+}
+
+struct ata_legacy_devres {
+ unsigned int mask;
+ unsigned long cmd_port[2];
+ void __iomem * cmd_addr[2];
+ void __iomem * ctl_addr[2];
+ unsigned int irq[2];
+ void * irq_dev_id[2];
+};
+
+static void ata_legacy_free_irqs(struct ata_legacy_devres *legacy_dr)
+{
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ if (!legacy_dr->irq[i])
+ continue;
+
+ free_irq(legacy_dr->irq[i], legacy_dr->irq_dev_id[i]);
+ legacy_dr->irq[i] = 0;
+ legacy_dr->irq_dev_id[i] = NULL;
}
+}
+
+static void ata_legacy_release(struct device *gdev, void *res)
+{
+ struct ata_legacy_devres *this = res;
+ int i;
+
+ ata_legacy_free_irqs(this);
- bmdma = pcim_iomap(pdev, 4, 16); /* may fail */
-
- /* alloc and init probe_ent */
- probe_ent = ata_probe_ent_alloc(pci_dev_to_dev(pdev), port[0]);
- if (!probe_ent)
- return NULL;
-
- probe_ent->n_ports = 2;
- probe_ent->irq_flags = IRQF_SHARED;
-
- if (port_mask & ATA_PORT_PRIMARY) {
- probe_ent->irq = ATA_PRIMARY_IRQ(pdev);
- probe_ent->port[0].cmd_addr = iomap[0];
- probe_ent->port[0].altstatus_addr =
- probe_ent->port[0].ctl_addr = iomap[1];
- if (bmdma) {
- probe_ent->port[0].bmdma_addr = bmdma;
- if ((!(port[0]->flags & ATA_FLAG_IGN_SIMPLEX)) &&
- (ioread8(bmdma + 2) & 0x80))
- probe_ent->_host_flags |= ATA_HOST_SIMPLEX;
+ for (i = 0; i < 2; i++) {
+ if (this->cmd_addr[i])
+ ioport_unmap(this->cmd_addr[i]);
+ if (this->ctl_addr[i])
+ ioport_unmap(this->ctl_addr[i]);
+ if (this->cmd_port[i])
+ release_region(this->cmd_port[i], 8);
+ }
+}
+
+static int ata_init_legacy_port(struct ata_port *ap,
+ struct ata_legacy_devres *legacy_dr)
+{
+ struct ata_host *host = ap->host;
+ int port_no = ap->port_no;
+ unsigned long cmd_port, ctl_port;
+
+ if (port_no == 0) {
+ cmd_port = ATA_PRIMARY_CMD;
+ ctl_port = ATA_PRIMARY_CTL;
+ } else {
+ cmd_port = ATA_SECONDARY_CMD;
+ ctl_port = ATA_SECONDARY_CTL;
+ }
+
+ /* request cmd_port */
+ if (request_region(cmd_port, 8, "libata"))
+ legacy_dr->cmd_port[port_no] = cmd_port;
+ else {
+ dev_printk(KERN_WARNING, host->dev,
+ "0x%0lX IDE port busy\n", cmd_port);
+ return -EBUSY;
+ }
+
+ /* iomap cmd and ctl ports */
+ legacy_dr->cmd_addr[port_no] = ioport_map(cmd_port, 8);
+ legacy_dr->ctl_addr[port_no] = ioport_map(ctl_port, 1);
+ if (!legacy_dr->cmd_addr[port_no] || !legacy_dr->ctl_addr[port_no]) {
+ dev_printk(KERN_WARNING, host->dev,
+ "failed to map cmd/ctl ports\n");
+ return -ENOMEM;
+ }
+
+ /* init IO addresses */
+ ap->ioaddr.cmd_addr = legacy_dr->cmd_addr[port_no];
+ ap->ioaddr.altstatus_addr = legacy_dr->ctl_addr[port_no];
+ ap->ioaddr.ctl_addr = legacy_dr->ctl_addr[port_no];
+ ata_std_ports(&ap->ioaddr);
+
+ return 0;
+}
+
+/**
+ * ata_init_legacy_host - acquire legacy ATA resources and init ATA host
+ * @host: target ATA host
+ * @was_busy: out parameter, indicates whether any port was busy
+ *
+ * Acquire legacy ATA resources for the first two ports of @host
+ * and initialize it accordingly. Ports marked dummy are skipped
+ * and resource acquistion failure makes the port dummy.
+ *
+ * LOCKING:
+ * Inherited from calling layer (may sleep).
+ *
+ * RETURNS:
+ * 0 if at least one port is initialized, -ENODEV if no port is
+ * available.
+ */
+static int ata_init_legacy_host(struct ata_host *host, int *was_busy)
+{
+ struct device *gdev = host->dev;
+ struct ata_legacy_devres *legacy_dr;
+ int i, rc;
+
+ if (!devres_open_group(gdev, NULL, GFP_KERNEL))
+ return -ENOMEM;
+
+ rc = -ENOMEM;
+ legacy_dr = devres_alloc(ata_legacy_release, sizeof(*legacy_dr),
+ GFP_KERNEL);
+ if (!legacy_dr)
+ goto err_out;
+ devres_add(gdev, legacy_dr);
+
+ for (i = 0; i < 2; i++) {
+ if (ata_port_is_dummy(host->ports[i]))
+ continue;
+
+ rc = ata_init_legacy_port(host->ports[i], legacy_dr);
+ if (rc == 0)
+ legacy_dr->mask |= 1 << i;
+ else {
+ if (rc == -EBUSY)
+ (*was_busy)++;
+ host->ports[i]->ops = &ata_dummy_port_ops;
}
- ata_std_ports(&probe_ent->port[0]);
- } else
- probe_ent->dummy_port_mask |= ATA_PORT_PRIMARY;
+ }
- if (port_mask & ATA_PORT_SECONDARY) {
- if (probe_ent->irq)
- probe_ent->irq2 = ATA_SECONDARY_IRQ(pdev);
+ if (!legacy_dr->mask) {
+ dev_printk(KERN_ERR, gdev, "no available legacy port\n");
+ return -ENODEV;
+ }
+
+ devres_remove_group(gdev, NULL);
+ return 0;
+
+ err_out:
+ devres_release_group(gdev, NULL);
+ return rc;
+}
+
+/**
+ * ata_request_legacy_irqs - request legacy ATA IRQs
+ * @host: target ATA host
+ * @handler: array of IRQ handlers
+ * @irq_flags: array of IRQ flags
+ * @dev_id: array of IRQ dev_ids
+ *
+ * Request legacy IRQs for non-dummy legacy ports in @host. All
+ * IRQ parameters are passed as array to allow ports to have
+ * separate IRQ handlers.
+ *
+ * LOCKING:
+ * Inherited from calling layer (may sleep).
+ *
+ * RETURNS:
+ * 0 on success, -errno otherwise.
+ */
+static int ata_request_legacy_irqs(struct ata_host *host,
+ irq_handler_t const *handler,
+ const unsigned int *irq_flags,
+ void * const *dev_id)
+{
+ struct device *gdev = host->dev;
+ struct ata_legacy_devres *legacy_dr;
+ int i, rc;
+
+ legacy_dr = devres_find(host->dev, ata_legacy_release, NULL, NULL);
+ BUG_ON(!legacy_dr);
+
+ for (i = 0; i < 2; i++) {
+ unsigned int irq;
+
+ /* FIXME: ATA_*_IRQ() should take generic device not pci_dev */
+ if (i == 0)
+ irq = ATA_PRIMARY_IRQ(to_pci_dev(gdev));
else
- probe_ent->irq = ATA_SECONDARY_IRQ(pdev);
- probe_ent->port[1].cmd_addr = iomap[2];
- probe_ent->port[1].altstatus_addr =
- probe_ent->port[1].ctl_addr = iomap[3];
- if (bmdma) {
- probe_ent->port[1].bmdma_addr = bmdma + 8;
- if ((!(port[1]->flags & ATA_FLAG_IGN_SIMPLEX)) &&
- (ioread8(bmdma + 10) & 0x80))
- probe_ent->_host_flags |= ATA_HOST_SIMPLEX;
+ irq = ATA_SECONDARY_IRQ(to_pci_dev(gdev));
+
+ if (!(legacy_dr->mask & (1 << i)))
+ continue;
+
+ if (!handler[i]) {
+ dev_printk(KERN_ERR, gdev,
+ "NULL handler specified for port %d\n", i);
+ rc = -EINVAL;
+ goto err_out;
+ }
+
+ rc = request_irq(irq, handler[i], irq_flags[i], DRV_NAME,
+ dev_id[i]);
+ if (rc) {
+ dev_printk(KERN_ERR, gdev,
+ "irq %u request failed (errno=%d)\n", irq, rc);
+ goto err_out;
}
- ata_std_ports(&probe_ent->port[1]);
- /* FIXME: could be pointing to stack area; must copy */
- probe_ent->pinfo2 = port[1];
- } else
- probe_ent->dummy_port_mask |= ATA_PORT_SECONDARY;
+ /* record irq allocation in legacy_dr */
+ legacy_dr->irq[i] = irq;
+ legacy_dr->irq_dev_id[i] = dev_id[i];
- return probe_ent;
-}
+ /* only used to print info */
+ if (i == 0)
+ host->irq = irq;
+ else
+ host->irq2 = irq;
+ }
+
+ return 0;
+ err_out:
+ ata_legacy_free_irqs(legacy_dr);
+ return rc;
+}
/**
* ata_pci_init_one - Initialize/register PCI IDE host controller
* @pdev: Controller to be initialized
- * @port_info: Information from low-level host driver
- * @n_ports: Number of ports attached to host controller
+ * @ppi: array of port_info, must be enough for two ports
*
* This is a helper function which can be called from a driver's
* xxx_init_one() probe function if the hardware uses traditional
* RETURNS:
* Zero on success, negative on errno-based value on error.
*/
-
-int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
- unsigned int n_ports)
+int ata_pci_init_one(struct pci_dev *pdev,
+ const struct ata_port_info * const * ppi)
{
struct device *dev = &pdev->dev;
- struct ata_probe_ent *probe_ent = NULL;
- struct ata_port_info *port[2];
+ const struct ata_port_info *pi = NULL;
+ struct ata_host *host = NULL;
u8 mask;
- unsigned int legacy_mode = 0;
- int rc;
+ int legacy_mode = 0;
+ int i, rc;
DPRINTK("ENTER\n");
- if (!devres_open_group(dev, NULL, GFP_KERNEL))
- return -ENOMEM;
+ /* look up the first valid port_info */
+ for (i = 0; i < 2 && ppi[i]; i++) {
+ if (ppi[i]->port_ops != &ata_dummy_port_ops) {
+ pi = ppi[i];
+ break;
+ }
+ }
- BUG_ON(n_ports < 1 || n_ports > 2);
+ if (!pi) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "no valid port_info specified\n");
+ return -EINVAL;
+ }
- port[0] = port_info[0];
- if (n_ports > 1)
- port[1] = port_info[1];
- else
- port[1] = port[0];
+ if (!devres_open_group(dev, NULL, GFP_KERNEL))
+ return -ENOMEM;
/* FIXME: Really for ATA it isn't safe because the device may be
multi-purpose and we want to leave it alone if it was already
Checking dev->is_enabled is insufficient as this is not set at
boot for the primary video which is BIOS enabled
- */
+ */
rc = pcim_enable_device(pdev);
if (rc)
pci_read_config_byte(pdev, PCI_CLASS_PROG, &tmp8);
mask = (1 << 2) | (1 << 0);
if ((tmp8 & mask) != mask)
- legacy_mode = (1 << 3);
+ legacy_mode = 1;
#if defined(CONFIG_NO_ATA_LEGACY)
/* Some platforms with PCI limits cannot address compat
port space. In that case we punt if their firmware has
#endif
}
+ /* alloc and init host */
+ host = ata_host_alloc_pinfo(dev, ppi, 2);
+ if (!host) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "failed to allocate ATA host\n");
+ rc = -ENOMEM;
+ goto err_out;
+ }
+
if (!legacy_mode) {
- rc = pci_request_regions(pdev, DRV_NAME);
- if (rc) {
- pcim_pin_device(pdev);
+ rc = ata_pci_init_native_host(host);
+ if (rc)
goto err_out;
- }
} else {
- /* Deal with combined mode hack. This side of the logic all
- goes away once the combined mode hack is killed in 2.6.21 */
- if (!devm_request_region(dev, ATA_PRIMARY_CMD, 8, "libata")) {
- struct resource *conflict, res;
- res.start = ATA_PRIMARY_CMD;
- res.end = ATA_PRIMARY_CMD + 8 - 1;
- conflict = ____request_resource(&ioport_resource, &res);
- while (conflict->child)
- conflict = ____request_resource(conflict, &res);
- if (!strcmp(conflict->name, "libata"))
- legacy_mode |= ATA_PORT_PRIMARY;
- else {
- pcim_pin_device(pdev);
- printk(KERN_WARNING "ata: 0x%0X IDE port busy\n" \
- "ata: conflict with %s\n",
- ATA_PRIMARY_CMD,
- conflict->name);
- }
- } else
- legacy_mode |= ATA_PORT_PRIMARY;
-
- if (!devm_request_region(dev, ATA_SECONDARY_CMD, 8, "libata")) {
- struct resource *conflict, res;
- res.start = ATA_SECONDARY_CMD;
- res.end = ATA_SECONDARY_CMD + 8 - 1;
- conflict = ____request_resource(&ioport_resource, &res);
- while (conflict->child)
- conflict = ____request_resource(conflict, &res);
- if (!strcmp(conflict->name, "libata"))
- legacy_mode |= ATA_PORT_SECONDARY;
- else {
- pcim_pin_device(pdev);
- printk(KERN_WARNING "ata: 0x%X IDE port busy\n" \
- "ata: conflict with %s\n",
- ATA_SECONDARY_CMD,
- conflict->name);
- }
- } else
- legacy_mode |= ATA_PORT_SECONDARY;
-
- if (legacy_mode & ATA_PORT_PRIMARY)
- pci_request_region(pdev, 1, DRV_NAME);
- if (legacy_mode & ATA_PORT_SECONDARY)
- pci_request_region(pdev, 3, DRV_NAME);
- /* If there is a DMA resource, allocate it */
- pci_request_region(pdev, 4, DRV_NAME);
- }
+ int was_busy = 0;
- /* we have legacy mode, but all ports are unavailable */
- if (legacy_mode == (1 << 3)) {
- rc = -EBUSY;
- goto err_out;
+ rc = ata_init_legacy_host(host, &was_busy);
+ if (was_busy)
+ pcim_pin_device(pdev);
+ if (rc)
+ goto err_out;
+
+ /* request respective PCI regions, may fail */
+ rc = pci_request_region(pdev, 1, DRV_NAME);
+ rc = pci_request_region(pdev, 3, DRV_NAME);
}
- /* TODO: If we get no DMA mask we should fall back to PIO */
- rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
- if (rc)
- goto err_out;
- rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+ /* init BMDMA, may fail */
+ ata_pci_init_bmdma(host);
+ pci_set_master(pdev);
+
+ /* start host and request IRQ */
+ rc = ata_host_start(host);
if (rc)
goto err_out;
- if (legacy_mode) {
- probe_ent = ata_pci_init_legacy_port(pdev, port, legacy_mode);
- } else {
- if (n_ports == 2)
- probe_ent = ata_pci_init_native_mode(pdev, port, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
- else
- probe_ent = ata_pci_init_native_mode(pdev, port, ATA_PORT_PRIMARY);
+ if (!legacy_mode)
+ rc = devm_request_irq(dev, pdev->irq, pi->port_ops->irq_handler,
+ IRQF_SHARED, DRV_NAME, host);
+ else {
+ irq_handler_t handler[2] = { host->ops->irq_handler,
+ host->ops->irq_handler };
+ unsigned int irq_flags[2] = { IRQF_SHARED, IRQF_SHARED };
+ void *dev_id[2] = { host, host };
+
+ rc = ata_request_legacy_irqs(host, handler, irq_flags, dev_id);
}
- if (!probe_ent) {
- rc = -ENOMEM;
+ if (rc)
goto err_out;
- }
-
- pci_set_master(pdev);
- if (!ata_device_add(probe_ent)) {
- rc = -ENODEV;
+ /* register */
+ rc = ata_host_register(host, pi->sht);
+ if (rc)
goto err_out;
- }
- devm_kfree(dev, probe_ent);
devres_remove_group(dev, NULL);
return 0;
return 0;
}
-unsigned long ata_pci_default_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long xfer_mask)
+unsigned long ata_pci_default_filter(struct ata_device *adev, unsigned long xfer_mask)
{
/* Filter out DMA modes if the device has been configured by
the BIOS as PIO only */
- if (ap->ioaddr.bmdma_addr == 0)
+ if (adev->ap->ioaddr.bmdma_addr == 0)
xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
return xfer_mask;
}
projects / linux-flexiantxendom0-3.2.10.git / blobdiff