uhci->rh_state = UHCI_RH_RESET;
uhci->is_stopped = UHCI_IS_STOPPED;
uhci_to_hcd(uhci)->state = HC_STATE_HALT;
- uhci_to_hcd(uhci)->poll_rh = 0;
+ clear_bit(HCD_FLAG_POLL_RH, &uhci_to_hcd(uhci)->flags);
uhci->dead = 0; /* Full reset resurrects the controller */
}
*/
static void configure_hc(struct uhci_hcd *uhci)
{
+ struct pci_dev *pdev = to_pci_dev(uhci_dev(uhci));
+
/* Set the frame length to the default: 1 ms exactly */
outb(USBSOF_DEFAULT, uhci->io_addr + USBSOF);
mb();
/* Enable PIRQ */
- pci_write_config_word(to_pci_dev(uhci_dev(uhci)), USBLEGSUP,
- USBLEGSUP_DEFAULT);
+ pci_write_config_word(pdev, USBLEGSUP, USBLEGSUP_DEFAULT);
+
+ /* Disable platform-specific non-PME# wakeup */
+ if (pdev->vendor == PCI_VENDOR_ID_INTEL)
+ pci_write_config_byte(pdev, USBRES_INTEL, 0);
}
/* If interrupts don't work and remote wakeup is enabled then
* the suspended root hub needs to be polled.
*/
- uhci_to_hcd(uhci)->poll_rh = (!int_enable && wakeup_enable);
+ if (!int_enable && wakeup_enable)
+ set_bit(HCD_FLAG_POLL_RH, &uhci_to_hcd(uhci)->flags);
+ else
+ clear_bit(HCD_FLAG_POLL_RH, &uhci_to_hcd(uhci)->flags);
uhci_scan_schedule(uhci);
uhci_fsbr_off(uhci);
uhci->io_addr + USBINTR);
mb();
uhci->rh_state = UHCI_RH_RUNNING;
- uhci_to_hcd(uhci)->poll_rh = 1;
+ set_bit(HCD_FLAG_POLL_RH, &uhci_to_hcd(uhci)->flags);
}
static void wakeup_rh(struct uhci_hcd *uhci)
struct uhci_hcd *uhci = hcd_to_uhci(hcd);
int retval = -EBUSY;
int i;
- struct dentry *dentry;
+ struct dentry __maybe_unused *dentry;
hcd->uses_new_polling = 1;
INIT_LIST_HEAD(&uhci->idle_qh_list);
init_waitqueue_head(&uhci->waitqh);
- if (DEBUG_CONFIGURED) {
- dentry = debugfs_create_file(hcd->self.bus_name,
- S_IFREG|S_IRUGO|S_IWUSR, uhci_debugfs_root,
- uhci, &uhci_debug_operations);
- if (!dentry) {
- dev_err(uhci_dev(uhci), "couldn't create uhci "
- "debugfs entry\n");
- retval = -ENOMEM;
- goto err_create_debug_entry;
- }
- uhci->dentry = dentry;
+#ifdef UHCI_DEBUG_OPS
+ dentry = debugfs_create_file(hcd->self.bus_name,
+ S_IFREG|S_IRUGO|S_IWUSR, uhci_debugfs_root,
+ uhci, &uhci_debug_operations);
+ if (!dentry) {
+ dev_err(uhci_dev(uhci), "couldn't create uhci debugfs entry\n");
+ return -ENOMEM;
}
+ uhci->dentry = dentry;
+#endif
uhci->frame = dma_alloc_coherent(uhci_dev(uhci),
UHCI_NUMFRAMES * sizeof(*uhci->frame),
configure_hc(uhci);
uhci->is_initialized = 1;
+ spin_lock_irq(&uhci->lock);
start_rh(uhci);
+ spin_unlock_irq(&uhci->lock);
return 0;
/*
err_alloc_frame:
debugfs_remove(uhci->dentry);
-err_create_debug_entry:
return retval;
}
struct uhci_hcd *uhci = hcd_to_uhci(hcd);
spin_lock_irq(&uhci->lock);
- if (test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags) && !uhci->dead)
+ if (HCD_HW_ACCESSIBLE(hcd) && !uhci->dead)
uhci_hc_died(uhci);
uhci_scan_schedule(uhci);
spin_unlock_irq(&uhci->lock);
int rc = 0;
spin_lock_irq(&uhci->lock);
- if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))
+ if (!HCD_HW_ACCESSIBLE(hcd))
rc = -ESHUTDOWN;
else if (uhci->dead)
; /* Dead controllers tell no tales */
int rc = 0;
spin_lock_irq(&uhci->lock);
- if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))
+ if (!HCD_HW_ACCESSIBLE(hcd))
rc = -ESHUTDOWN;
else if (!uhci->dead)
wakeup_rh(uhci);
return rc;
}
-static int uhci_pci_suspend(struct usb_hcd *hcd)
+static int uhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
{
struct uhci_hcd *uhci = hcd_to_uhci(hcd);
+ struct pci_dev *pdev = to_pci_dev(uhci_dev(uhci));
int rc = 0;
dev_dbg(uhci_dev(uhci), "%s\n", __func__);
spin_lock_irq(&uhci->lock);
- if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags) || uhci->dead)
+ if (!HCD_HW_ACCESSIBLE(hcd) || uhci->dead)
goto done_okay; /* Already suspended or dead */
if (uhci->rh_state > UHCI_RH_SUSPENDED) {
/* All PCI host controllers are required to disable IRQ generation
* at the source, so we must turn off PIRQ.
*/
- pci_write_config_word(to_pci_dev(uhci_dev(uhci)), USBLEGSUP, 0);
- mb();
- hcd->poll_rh = 0;
-
- /* FIXME: Enable non-PME# remote wakeup? */
+ pci_write_config_word(pdev, USBLEGSUP, 0);
+ clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
+
+ /* Enable platform-specific non-PME# wakeup */
+ if (do_wakeup) {
+ if (pdev->vendor == PCI_VENDOR_ID_INTEL)
+ pci_write_config_byte(pdev, USBRES_INTEL,
+ USBPORT1EN | USBPORT2EN);
+ }
done_okay:
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
* even if the controller was dead.
*/
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
- mb();
spin_lock_irq(&uhci->lock);
if (hibernated)
uhci_hc_died(uhci);
- /* FIXME: Disable non-PME# remote wakeup? */
-
/* The firmware or a boot kernel may have changed the controller
* settings during a system wakeup. Check it and reconfigure
* to avoid problems.
/* If the controller was dead before, it's back alive now */
configure_hc(uhci);
- if (uhci->rh_state == UHCI_RH_RESET) {
-
- /* The controller had to be reset */
+ /* Tell the core if the controller had to be reset */
+ if (uhci->rh_state == UHCI_RH_RESET)
usb_root_hub_lost_power(hcd->self.root_hub);
- suspend_rh(uhci, UHCI_RH_SUSPENDED);
- }
spin_unlock_irq(&uhci->lock);
/* If interrupts don't work and remote wakeup is enabled then
* the suspended root hub needs to be polled.
*/
- if (!uhci->RD_enable && hcd->self.root_hub->do_remote_wakeup) {
- hcd->poll_rh = 1;
- usb_hcd_poll_rh_status(hcd);
- }
+ if (!uhci->RD_enable && hcd->self.root_hub->do_remote_wakeup)
+ set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
+
+ /* Does the root hub have a port wakeup pending? */
+ usb_hcd_poll_rh_status(hcd);
return 0;
}
#endif
projects / karo-tx-linux.git / blobdiff