static void ohci_dump (struct ohci_hcd *ohci, int verbose);
static int ohci_init (struct ohci_hcd *ohci);
static void ohci_stop (struct usb_hcd *hcd);
+
+#if defined(CONFIG_PM) || defined(CONFIG_PCI)
static int ohci_restart (struct ohci_hcd *ohci);
+#endif
#include "ohci-hub.c"
#include "ohci-dbg.c"
*/
static int ohci_urb_enqueue (
struct usb_hcd *hcd,
- struct usb_host_endpoint *ep,
struct urb *urb,
gfp_t mem_flags
) {
int retval = 0;
#ifdef OHCI_VERBOSE_DEBUG
- urb_print (urb, "SUB", usb_pipein (pipe));
+ urb_print(urb, "SUB", usb_pipein(pipe), -EINPROGRESS);
#endif
/* every endpoint has a ed, locate and maybe (re)initialize it */
- if (! (ed = ed_get (ohci, ep, urb->dev, pipe, urb->interval)))
+ if (! (ed = ed_get (ohci, urb->ep, urb->dev, pipe, urb->interval)))
return -ENOMEM;
/* for the private part of the URB we need the number of TDs (size) */
retval = -ENODEV;
goto fail;
}
-
- /* in case of unlink-during-submit */
- spin_lock (&urb->lock);
- if (urb->status != -EINPROGRESS) {
- spin_unlock (&urb->lock);
- urb->hcpriv = urb_priv;
- finish_urb (ohci, urb);
- retval = 0;
+ retval = usb_hcd_link_urb_to_ep(hcd, urb);
+ if (retval)
goto fail;
- }
/* schedule the ed if needed */
if (ed->state == ED_IDLE) {
retval = ed_schedule (ohci, ed);
- if (retval < 0)
- goto fail0;
+ if (retval < 0) {
+ usb_hcd_unlink_urb_from_ep(hcd, urb);
+ goto fail;
+ }
if (ed->type == PIPE_ISOCHRONOUS) {
u16 frame = ohci_frame_no(ohci);
urb->hcpriv = urb_priv;
td_submit_urb (ohci, urb);
-fail0:
- spin_unlock (&urb->lock);
fail:
if (retval)
urb_free_priv (ohci, urb_priv);
}
/*
- * decouple the URB from the HC queues (TDs, urb_priv); it's
- * already marked using urb->status. reporting is always done
+ * decouple the URB from the HC queues (TDs, urb_priv).
+ * reporting is always done
* asynchronously, and we might be dealing with an urb that's
* partially transferred, or an ED with other urbs being unlinked.
*/
-static int ohci_urb_dequeue (struct usb_hcd *hcd, struct urb *urb)
+static int ohci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
{
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
unsigned long flags;
+ int rc;
#ifdef OHCI_VERBOSE_DEBUG
- urb_print (urb, "UNLINK", 1);
+ urb_print(urb, "UNLINK", 1, status);
#endif
spin_lock_irqsave (&ohci->lock, flags);
- if (HC_IS_RUNNING(hcd->state)) {
+ rc = usb_hcd_check_unlink_urb(hcd, urb, status);
+ if (rc) {
+ ; /* Do nothing */
+ } else if (HC_IS_RUNNING(hcd->state)) {
urb_priv_t *urb_priv;
/* Unless an IRQ completed the unlink while it was being
* any more ... just clean up every urb's memory.
*/
if (urb->hcpriv)
- finish_urb (ohci, urb);
+ finish_urb(ohci, urb, status);
}
spin_unlock_irqrestore (&ohci->lock, flags);
- return 0;
+ return rc;
}
/*-------------------------------------------------------------------------*/
*/
static void unlink_watchdog_func(unsigned long _ohci)
{
- long flags;
+ unsigned long flags;
unsigned max;
unsigned seen_count = 0;
unsigned i;
struct ohci_regs __iomem *regs = ohci->regs;
int ints;
- /* we can eliminate a (slow) ohci_readl()
- * if _only_ WDH caused this irq
+ /* Read interrupt status (and flush pending writes). We ignore the
+ * optimization of checking the LSB of hcca->done_head; it doesn't
+ * work on all systems (edge triggering for OHCI can be a factor).
*/
- if ((ohci->hcca->done_head != 0)
- && ! (hc32_to_cpup (ohci, &ohci->hcca->done_head)
- & 0x01)) {
- ints = OHCI_INTR_WDH;
+ ints = ohci_readl(ohci, ®s->intrstatus);
- /* cardbus/... hardware gone before remove() */
- } else if ((ints = ohci_readl (ohci, ®s->intrstatus)) == ~(u32)0) {
+ /* Check for an all 1's result which is a typical consequence
+ * of dead, unclocked, or unplugged (CardBus...) devices
+ */
+ if (ints == ~(u32)0) {
disable (ohci);
ohci_dbg (ohci, "device removed!\n");
return IRQ_HANDLED;
+ }
+
+ /* We only care about interrupts that are enabled */
+ ints &= ohci_readl(ohci, ®s->intrenable);
/* interrupt for some other device? */
- } else if ((ints &= ohci_readl (ohci, ®s->intrenable)) == 0) {
+ if (ints == 0)
return IRQ_NOTMINE;
- }
if (ints & OHCI_INTR_UE) {
// e.g. due to PCI Master/Target Abort
/*-------------------------------------------------------------------------*/
+#if defined(CONFIG_PM) || defined(CONFIG_PCI)
+
/* must not be called from interrupt context */
static int ohci_restart (struct ohci_hcd *ohci)
{
ed, ed->state);
}
- spin_lock (&urb->lock);
- urb->status = -ESHUTDOWN;
- spin_unlock (&urb->lock);
+ if (!urb->unlinked)
+ urb->unlinked = -ESHUTDOWN;
}
finish_unlinks (ohci, 0);
spin_unlock_irq(&ohci->lock);
return 0;
}
+#endif
+
/*-------------------------------------------------------------------------*/
#define DRIVER_INFO DRIVER_VERSION " " DRIVER_DESC
#define PLATFORM_DRIVER ohci_hcd_lh7a404_driver
#endif
-#ifdef CONFIG_PXA27x
+#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
#include "ohci-pxa27x.c"
#define PLATFORM_DRIVER ohci_hcd_pxa27x_driver
#endif
#define PS3_SYSTEM_BUS_DRIVER ps3_ohci_driver
#endif
+#ifdef CONFIG_USB_OHCI_HCD_SSB
+#include "ohci-ssb.c"
+#define SSB_OHCI_DRIVER ssb_ohci_driver
+#endif
+
#if !defined(PCI_DRIVER) && \
!defined(PLATFORM_DRIVER) && \
!defined(OF_PLATFORM_DRIVER) && \
!defined(SA1111_DRIVER) && \
- !defined(PS3_SYSTEM_BUS_DRIVER)
+ !defined(PS3_SYSTEM_BUS_DRIVER) && \
+ !defined(SSB_OHCI_DRIVER)
#error "missing bus glue for ohci-hcd"
#endif
goto error_pci;
#endif
+#ifdef SSB_OHCI_DRIVER
+ retval = ssb_driver_register(&SSB_OHCI_DRIVER);
+ if (retval)
+ goto error_ssb;
+#endif
+
return retval;
/* Error path */
+#ifdef SSB_OHCI_DRIVER
+ error_ssb:
+#endif
#ifdef PCI_DRIVER
+ pci_unregister_driver(&PCI_DRIVER);
error_pci:
#endif
#ifdef SA1111_DRIVER
static void __exit ohci_hcd_mod_exit(void)
{
+#ifdef SSB_OHCI_DRIVER
+ ssb_driver_unregister(&SSB_OHCI_DRIVER);
+#endif
#ifdef PCI_DRIVER
pci_unregister_driver(&PCI_DRIVER);
#endif
projects / linux-2.6-omap-h63xx.git / blobdiff