* This file is licenced under the GPL.
*/
-#ifdef CONFIG_PMAC_PBOOK
-#include <asm/machdep.h>
-#include <asm/pmac_feature.h>
-#include <asm/pci-bridge.h>
-#include <asm/prom.h>
-#ifndef CONFIG_PM
-# define CONFIG_PM
-#endif
-#endif
-
#ifndef CONFIG_PCI
#error "This file is PCI bus glue. CONFIG_PCI must be defined."
#endif
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
int ret;
- if(hcd->self.controller && hcd->self.controller->bus == &pci_bus_type) {
+ /* REVISIT this whole block should move to reset(), which handles
+ * all the other one-time init.
+ */
+ if (hcd->self.controller) {
struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
/* AMD 756, for most chips (early revs), corrupts register
&& pdev->device == 0x740c) {
ohci->flags = OHCI_QUIRK_AMD756;
ohci_dbg (ohci, "AMD756 erratum 4 workaround\n");
- // also somewhat erratum 10 (suspend/resume issues)
+ /* also erratum 10 (suspend/resume issues) */
+ device_init_wakeup(&hcd->self.root_hub->dev, 0);
}
/* FIXME for some of the early AMD 760 southbridges, OHCI
ohci_dbg (ohci,
"enabled Compaq ZFMicro chipset quirk\n");
}
+
+ /* RWC may not be set for add-in PCI cards, since boot
+ * firmware probably ignored them. This transfers PCI
+ * PM wakeup capabilities (once the PCI layer is fixed).
+ */
+ if (device_may_wakeup(&pdev->dev))
+ ohci->hc_control |= OHCI_CTRL_RWC;
}
/* NOTE: there may have already been a first reset, to
static int ohci_pci_suspend (struct usb_hcd *hcd, pm_message_t message)
{
- struct ohci_hcd *ohci = hcd_to_ohci (hcd);
-
- /* suspend root hub, hoping it keeps power during suspend */
- if (time_before (jiffies, ohci->next_statechange))
- msleep (100);
-
-#ifdef CONFIG_USB_SUSPEND
- (void) usb_suspend_device (hcd->self.root_hub, message);
-#else
- usb_lock_device (hcd->self.root_hub);
- (void) ohci_hub_suspend (hcd);
- usb_unlock_device (hcd->self.root_hub);
-#endif
-
- /* let things settle down a bit */
- msleep (100);
-
-#ifdef CONFIG_PMAC_PBOOK
- if (_machine == _MACH_Pmac) {
- struct device_node *of_node;
-
- /* Disable USB PAD & cell clock */
- of_node = pci_device_to_OF_node (to_pci_dev(hcd->self.controller));
- if (of_node)
- pmac_call_feature(PMAC_FTR_USB_ENABLE, of_node, 0, 0);
+ struct ohci_hcd *ohci = hcd_to_ohci (hcd);
+ unsigned long flags;
+ int rc = 0;
+
+ /* Root hub was already suspended. Disable irq emission and
+ * mark HW unaccessible, bail out if RH has been resumed. Use
+ * the spinlock to properly synchronize with possible pending
+ * RH suspend or resume activity.
+ *
+ * This is still racy as hcd->state is manipulated outside of
+ * any locks =P But that will be a different fix.
+ */
+ spin_lock_irqsave (&ohci->lock, flags);
+ if (hcd->state != HC_STATE_SUSPENDED) {
+ rc = -EINVAL;
+ goto bail;
}
-#endif /* CONFIG_PMAC_PBOOK */
- return 0;
+ ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
+ (void)ohci_readl(ohci, &ohci->regs->intrdisable);
+ clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ bail:
+ spin_unlock_irqrestore (&ohci->lock, flags);
+
+ return rc;
}
static int ohci_pci_resume (struct usb_hcd *hcd)
{
- struct ohci_hcd *ohci = hcd_to_ohci (hcd);
- int retval = 0;
-
-#ifdef CONFIG_PMAC_PBOOK
- if (_machine == _MACH_Pmac) {
- struct device_node *of_node;
-
- /* Re-enable USB PAD & cell clock */
- of_node = pci_device_to_OF_node (to_pci_dev(hcd->self.controller));
- if (of_node)
- pmac_call_feature (PMAC_FTR_USB_ENABLE, of_node, 0, 1);
- }
-#endif /* CONFIG_PMAC_PBOOK */
-
- /* resume root hub */
- if (time_before (jiffies, ohci->next_statechange))
- msleep (100);
-#ifdef CONFIG_USB_SUSPEND
- /* get extra cleanup even if remote wakeup isn't in use */
- retval = usb_resume_device (hcd->self.root_hub);
-#else
- usb_lock_device (hcd->self.root_hub);
- retval = ohci_hub_resume (hcd);
- usb_unlock_device (hcd->self.root_hub);
-#endif
-
- return retval;
+ set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ usb_hcd_resume_root_hub(hcd);
+ return 0;
}
#endif /* CONFIG_PM */
*/
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
-#ifdef CONFIG_USB_SUSPEND
- .hub_suspend = ohci_hub_suspend,
- .hub_resume = ohci_hub_resume,
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
static const struct pci_device_id pci_ids [] = { {
/* handle any USB OHCI controller */
- PCI_DEVICE_CLASS((PCI_CLASS_SERIAL_USB << 8) | 0x10, ~0),
+ PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_OHCI, ~0),
.driver_data = (unsigned long) &ohci_pci_hc_driver,
}, { /* end: all zeroes */ }
};
git://git.onelab.eu / linux-2.6.git / blobdiff