* @d: IDE port info
*
* Fetch the DMA Bus-Master-I/O-Base-Address (BMIBA) from PCI space.
- * Where a device has a partner that is already in DMA mode we check
- * and enforce IDE simplex rules.
*/
unsigned long ide_pci_dma_base(ide_hwif_t *hwif, const struct ide_port_info *d)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
unsigned long dma_base = 0;
- u8 dma_stat = 0;
if (hwif->host_flags & IDE_HFLAG_MMIO)
return hwif->dma_base;
if (hwif->channel)
dma_base += 8;
- if (d->host_flags & IDE_HFLAG_CS5520)
+ return dma_base;
+}
+EXPORT_SYMBOL_GPL(ide_pci_dma_base);
+
+int ide_pci_check_simplex(ide_hwif_t *hwif, const struct ide_port_info *d)
+{
+ u8 dma_stat;
+
+ if (d->host_flags & (IDE_HFLAG_MMIO | IDE_HFLAG_CS5520))
goto out;
if (d->host_flags & IDE_HFLAG_CLEAR_SIMPLEX) {
- ide_pci_clear_simplex(dma_base, d->name);
+ ide_pci_clear_simplex(hwif->dma_base, d->name);
goto out;
}
* we tune the drive then try to grab DMA ownership if we want to be
* the DMA end. This has to be become dynamic to handle hot-plug.
*/
- dma_stat = hwif->INB(dma_base + 2);
+ dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
if ((dma_stat & 0x80) && hwif->mate && hwif->mate->dma_base) {
printk(KERN_INFO "%s: simplex device: DMA disabled\n", d->name);
- dma_base = 0;
+ return -1;
}
out:
- return dma_base;
+ return 0;
}
-EXPORT_SYMBOL_GPL(ide_pci_dma_base);
+EXPORT_SYMBOL_GPL(ide_pci_check_simplex);
/*
* Set up BM-DMA capability (PnP BIOS should have done this)
}
/**
- * ide_hwif_configure - configure an IDE interface
+ * ide_hw_configure - configure a hw_regs_t instance
* @dev: PCI device holding interface
* @d: IDE port info
* @port: port number
* @irq: PCI IRQ
+ * @hw: hw_regs_t instance corresponding to this port
*
* Perform the initial set up for the hardware interface structure. This
* is done per interface port rather than per PCI device. There may be
* more than one port per device.
*
- * Returns the new hardware interface structure, or NULL on a failure
+ * Returns zero on success or an error code.
*/
-static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev,
- const struct ide_port_info *d,
- unsigned int port, int irq)
+static int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d,
+ unsigned int port, int irq, hw_regs_t *hw)
{
unsigned long ctl = 0, base = 0;
- ide_hwif_t *hwif;
- struct hw_regs_s hw;
if ((d->host_flags & IDE_HFLAG_ISA_PORTS) == 0) {
if (ide_pci_check_iomem(dev, d, 2 * port) ||
ide_pci_check_iomem(dev, d, 2 * port + 1)) {
printk(KERN_ERR "%s: I/O baseregs (BIOS) are reported "
"as MEM for port %d!\n", d->name, port);
- return NULL;
+ return -EINVAL;
}
ctl = pci_resource_start(dev, 2*port+1);
if (!base || !ctl) {
printk(KERN_ERR "%s: bad PCI BARs for port %d, skipping\n",
d->name, port);
- return NULL;
+ return -EINVAL;
}
- hwif = ide_find_port_slot(d);
- if (hwif == NULL)
- return NULL;
-
- memset(&hw, 0, sizeof(hw));
- hw.irq = irq;
- hw.dev = &dev->dev;
- hw.chipset = d->chipset ? d->chipset : ide_pci;
- ide_std_init_ports(&hw, base, ctl | 2);
-
- ide_init_port_hw(hwif, &hw);
+ memset(hw, 0, sizeof(*hw));
+ hw->irq = irq;
+ hw->dev = &dev->dev;
+ hw->chipset = d->chipset ? d->chipset : ide_pci;
+ ide_std_init_ports(hw, base, ctl | 2);
- return hwif;
+ return 0;
}
#ifdef CONFIG_BLK_DEV_IDEDMA_PCI
(dev->class & 0x80))) {
unsigned long base = ide_pci_dma_base(hwif, d);
- if (base == 0 || ide_pci_set_master(dev, d->name) < 0)
+ if (base == 0)
+ return -1;
+
+ hwif->dma_base = base;
+
+ if (ide_pci_check_simplex(hwif, d) < 0)
+ return -1;
+
+ if (ide_pci_set_master(dev, d->name) < 0)
return -1;
if (hwif->host_flags & IDE_HFLAG_MMIO)
if (ide_allocate_dma_engine(hwif))
return -1;
- ide_setup_dma(hwif, base);
+ hwif->dma_ops = &sff_dma_ops;
}
return 0;
* @dev: PCI device
* @d: IDE port info
* @noisy: verbose flag
- * @config: returned as 1 if we configured the hardware
*
* Set up the PCI and controller side of the IDE interface. This brings
* up the PCI side of the device, checks that the device is enabled
* and enables it if need be
*/
-static int ide_setup_pci_controller(struct pci_dev *dev, const struct ide_port_info *d, int noisy, int *config)
+static int ide_setup_pci_controller(struct pci_dev *dev,
+ const struct ide_port_info *d, int noisy)
{
int ret;
u16 pcicmd;
ret = ide_pci_configure(dev, d);
if (ret < 0)
goto out;
- *config = 1;
printk(KERN_INFO "%s: device enabled (Linux)\n", d->name);
}
* @dev: PCI device
* @d: IDE port info
* @pciirq: IRQ line
- * @idx: ATA index table to update
+ * @hw: hw_regs_t instances corresponding to this PCI IDE device
+ * @hws: hw_regs_t pointers table to update
*
* Scan the interfaces attached to this device and do any
* necessary per port setup. Attach the devices and ask the
* where the chipset setup is not the default PCI IDE one.
*/
-void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, int pciirq, u8 *idx)
+void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d,
+ int pciirq, hw_regs_t *hw, hw_regs_t **hws)
{
int channels = (d->host_flags & IDE_HFLAG_SINGLE) ? 1 : 2, port;
- ide_hwif_t *hwif;
u8 tmp;
/*
continue; /* port not enabled */
}
- hwif = ide_hwif_configure(dev, d, port, pciirq);
- if (hwif == NULL)
+ if (ide_hw_configure(dev, d, port, pciirq, hw + port))
continue;
- *(idx + port) = hwif->index;
+ *(hws + port) = hw + port;
}
}
EXPORT_SYMBOL_GPL(ide_pci_setup_ports);
*/
static int do_ide_setup_pci_device(struct pci_dev *dev,
const struct ide_port_info *d,
- u8 *idx, u8 noisy)
+ u8 noisy)
{
- int tried_config = 0;
int pciirq, ret;
- ret = ide_setup_pci_controller(dev, d, noisy, &tried_config);
- if (ret < 0)
- goto out;
-
/*
* Can we trust the reported IRQ?
*/
pciirq = dev->irq;
+ /*
+ * This allows offboard ide-pci cards the enable a BIOS,
+ * verify interrupt settings of split-mirror pci-config
+ * space, place chipset into init-mode, and/or preserve
+ * an interrupt if the card is not native ide support.
+ */
+ ret = d->init_chipset ? d->init_chipset(dev, d->name) : 0;
+ if (ret < 0)
+ goto out;
+
/* Is it an "IDE storage" device in non-PCI mode? */
if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 5) != 5) {
if (noisy)
printk(KERN_INFO "%s: not 100%% native mode: "
"will probe irqs later\n", d->name);
- /*
- * This allows offboard ide-pci cards the enable a BIOS,
- * verify interrupt settings of split-mirror pci-config
- * space, place chipset into init-mode, and/or preserve
- * an interrupt if the card is not native ide support.
- */
- ret = d->init_chipset ? d->init_chipset(dev, d->name) : 0;
- if (ret < 0)
- goto out;
pciirq = ret;
- } else if (tried_config) {
- if (noisy)
- printk(KERN_INFO "%s: will probe irqs later\n", d->name);
- pciirq = 0;
} else if (!pciirq) {
if (noisy)
printk(KERN_WARNING "%s: bad irq (%d): will probe later\n",
d->name, pciirq);
pciirq = 0;
} else {
- if (d->init_chipset) {
- ret = d->init_chipset(dev, d->name);
- if (ret < 0)
- goto out;
- }
if (noisy)
printk(KERN_INFO "%s: 100%% native mode on irq %d\n",
d->name, pciirq);
}
- /* FIXME: silent failure can happen */
-
- ide_pci_setup_ports(dev, d, pciirq, idx);
+ ret = pciirq;
out:
return ret;
}
-int ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d)
+int ide_pci_init_one(struct pci_dev *dev, const struct ide_port_info *d,
+ void *priv)
{
- u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
+ struct ide_host *host;
+ hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL };
int ret;
- ret = do_ide_setup_pci_device(dev, d, &idx[0], 1);
+ ret = ide_setup_pci_controller(dev, d, 1);
+ if (ret < 0)
+ goto out;
+
+ ide_pci_setup_ports(dev, d, 0, &hw[0], &hws[0]);
+
+ host = ide_host_alloc(d, hws);
+ if (host == NULL) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ host->dev[0] = &dev->dev;
+
+ host->host_priv = priv;
+
+ if (priv)
+ pci_set_drvdata(dev, host);
- if (ret >= 0)
- ide_device_add(idx, d);
+ ret = do_ide_setup_pci_device(dev, d, 1);
+ if (ret < 0)
+ goto out;
+ /* fixup IRQ */
+ hw[1].irq = hw[0].irq = ret;
+
+ ret = ide_host_register(host, d, hws);
+ if (ret)
+ ide_host_free(host);
+out:
return ret;
}
-EXPORT_SYMBOL_GPL(ide_setup_pci_device);
+EXPORT_SYMBOL_GPL(ide_pci_init_one);
-int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2,
- const struct ide_port_info *d)
+int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2,
+ const struct ide_port_info *d, void *priv)
{
struct pci_dev *pdev[] = { dev1, dev2 };
+ struct ide_host *host;
int ret, i;
- u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
+ hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL };
for (i = 0; i < 2; i++) {
- ret = do_ide_setup_pci_device(pdev[i], d, &idx[i*2], !i);
+ ret = ide_setup_pci_controller(pdev[i], d, !i);
+ if (ret < 0)
+ goto out;
+
+ ide_pci_setup_ports(pdev[i], d, 0, &hw[i*2], &hws[i*2]);
+ }
+
+ host = ide_host_alloc(d, hws);
+ if (host == NULL) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ host->dev[0] = &dev1->dev;
+ host->dev[1] = &dev2->dev;
+
+ host->host_priv = priv;
+
+ if (priv) {
+ pci_set_drvdata(pdev[0], host);
+ pci_set_drvdata(pdev[1], host);
+ }
+
+ for (i = 0; i < 2; i++) {
+ ret = do_ide_setup_pci_device(pdev[i], d, !i);
+
/*
* FIXME: Mom, mom, they stole me the helper function to undo
* do_ide_setup_pci_device() on the first device!
*/
if (ret < 0)
goto out;
+
+ /* fixup IRQ */
+ hw[i*2 + 1].irq = hw[i*2].irq = ret;
}
- ide_device_add(idx, d);
+ ret = ide_host_register(host, d, hws);
+ if (ret)
+ ide_host_free(host);
out:
return ret;
}
-EXPORT_SYMBOL_GPL(ide_setup_pci_devices);
+EXPORT_SYMBOL_GPL(ide_pci_init_two);
projects / deliverable / linux.git / blobdiff