* 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);
+ ohci_hcd_init (ohci);
return ohci_init (ohci);
}
if (pdev->vendor == PCI_VENDOR_ID_AMD
&& pdev->device == 0x740c) {
ohci->flags = OHCI_QUIRK_AMD756;
- ohci_info (ohci, "AMD756 erratum 4 workaround\n");
+ ohci_dbg (ohci, "AMD756 erratum 4 workaround\n");
// also somewhat erratum 10 (suspend/resume issues)
}
*/
else if (pdev->vendor == PCI_VENDOR_ID_OPTI
&& pdev->device == 0xc861) {
- ohci_info (ohci,
+ ohci_dbg (ohci,
"WARNING: OPTi workarounds unavailable\n");
}
if (b && b->device == PCI_DEVICE_ID_NS_87560_LIO
&& b->vendor == PCI_VENDOR_ID_NS) {
ohci->flags |= OHCI_QUIRK_SUPERIO;
- ohci_info (ohci, "Using NSC SuperIO setup\n");
+ ohci_dbg (ohci, "Using NSC SuperIO setup\n");
}
}
+
+ /* Check for Compaq's ZFMicro chipset, which needs short
+ * delays before control or bulk queues get re-activated
+ * in finish_unlinks()
+ */
+ else if (pdev->vendor == PCI_VENDOR_ID_COMPAQ
+ && pdev->device == 0xa0f8) {
+ ohci->flags |= OHCI_QUIRK_ZFMICRO;
+ ohci_dbg (ohci,
+ "enabled Compaq ZFMicro chipset quirk\n");
+ }
}
/* NOTE: there may have already been a first reset, to
#ifdef CONFIG_PM
-static int ohci_pci_suspend (struct usb_hcd *hcd, u32 state)
+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, state);
-#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 */
static const struct hc_driver ohci_pci_hc_driver = {
.description = hcd_name,
+ .product_desc = "OHCI Host Controller",
+ .hcd_priv_size = sizeof(struct ohci_hcd),
/*
* generic hardware linkage
#endif
.stop = ohci_stop,
- /*
- * memory lifecycle (except per-request)
- */
- .hcd_alloc = ohci_hcd_alloc,
-
/*
* managing i/o requests and associated device resources
*/
*/
.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,
};
git://git.onelab.eu / linux-2.6.git / blobdiff