#include <linux/timer.h>
#include <linux/list.h>
#include <linux/usb.h>
-#include <linux/usb_otg.h>
+#include <linux/usb/otg.h>
#include <linux/dma-mapping.h>
#include <linux/dmapool.h>
#include <linux/reboot.h>
#include "../core/hcd.h"
-#define DRIVER_VERSION "2005 April 22"
+#define DRIVER_VERSION "2006 August 04"
#define DRIVER_AUTHOR "Roman Weissgaerber, David Brownell"
#define DRIVER_DESC "USB 1.1 'Open' Host Controller (OHCI) Driver"
#undef OHCI_VERBOSE_DEBUG /* not always helpful */
/* For initializing controller (mask in an HCFS mode too) */
-#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
+#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
#define OHCI_INTR_INIT \
- (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_WDH)
+ (OHCI_INTR_MIE | OHCI_INTR_RHSC | OHCI_INTR_UE \
+ | OHCI_INTR_RD | OHCI_INTR_WDH)
#ifdef __hppa__
/* On PA-RISC, PDC can leave IR set incorrectly; ignore it there. */
static const char hcd_name [] = "ohci_hcd";
+#define STATECHANGE_DELAY msecs_to_jiffies(300)
+
#include "ohci.h"
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);
-static int ohci_reboot (struct notifier_block *, unsigned long , void *);
#include "ohci-hub.c"
#include "ohci-dbg.c"
ohci_writel (ohci, ohci->hc_control, &ohci->regs->control);
}
-/* reboot notifier forcibly disables IRQs and DMA, helping kexec and
+/* ohci_shutdown forcibly disables IRQs and DMA, helping kexec and
* other cases where the next software may expect clean state from the
* "firmware". this is bus-neutral, unlike shutdown() methods.
*/
-static int
-ohci_reboot (struct notifier_block *block, unsigned long code, void *null)
+static void
+ohci_shutdown (struct usb_hcd *hcd)
{
struct ohci_hcd *ohci;
- ohci = container_of (block, struct ohci_hcd, reboot_notifier);
+ ohci = hcd_to_ohci (hcd);
ohci_writel (ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
ohci_usb_reset (ohci);
/* flush the writes */
(void) ohci_readl (ohci, &ohci->regs->control);
- return 0;
}
/*-------------------------------------------------------------------------*
disable (ohci);
ohci->regs = hcd->regs;
- ohci->next_statechange = jiffies;
/* REVISIT this BIOS handshake is now moved into PCI "quirks", and
* was never needed for most non-PCI systems ... remove the code?
if ((ret = ohci_mem_init (ohci)) < 0)
ohci_stop (hcd);
else {
- register_reboot_notifier (&ohci->reboot_notifier);
create_debug_files (ohci);
}
return -EOVERFLOW;
}
- /* start controller operations */
+ /* use rhsc irqs after khubd is fully initialized */
+ hcd->poll_rh = 1;
+ hcd->uses_new_polling = 1;
+
+ /* start controller operations */
ohci->hc_control &= OHCI_CTRL_RWC;
- ohci->hc_control |= OHCI_CONTROL_INIT | OHCI_USB_OPER;
- ohci_writel (ohci, ohci->hc_control, &ohci->regs->control);
+ ohci->hc_control |= OHCI_CONTROL_INIT | OHCI_USB_OPER;
+ ohci_writel (ohci, ohci->hc_control, &ohci->regs->control);
hcd->state = HC_STATE_RUNNING;
/* wake on ConnectStatusChange, matching external hubs */
/* Choose the interrupts we care about now, others later on demand */
mask = OHCI_INTR_INIT;
- ohci_writel (ohci, mask, &ohci->regs->intrstatus);
+ ohci_writel (ohci, ~0, &ohci->regs->intrstatus);
ohci_writel (ohci, mask, &ohci->regs->intrenable);
/* handle root hub init quirks ... */
// flush those writes
(void) ohci_readl (ohci, &ohci->regs->control);
+ ohci->next_statechange = jiffies + STATECHANGE_DELAY;
spin_unlock_irq (&ohci->lock);
// POTPGT delay is bits 24-31, in 2 ms units.
/* interrupt for some other device? */
} else if ((ints &= ohci_readl (ohci, ®s->intrenable)) == 0) {
return IRQ_NOTMINE;
- }
+ }
+
+ /* NOTE: vendors didn't always make the same implementation
+ * choices for RHSC. Sometimes it triggers on an edge (like
+ * setting and maybe clearing a port status change bit); and
+ * it's level-triggered on other silicon, active until khubd
+ * clears all active port status change bits. Poll by timer
+ * til it's fully debounced and the difference won't matter.
+ */
+ if (ints & OHCI_INTR_RHSC) {
+ ohci_vdbg (ohci, "rhsc\n");
+ ohci_writel (ohci, OHCI_INTR_RHSC, ®s->intrdisable);
+ hcd->poll_rh = 1;
+ ohci->next_statechange = jiffies + STATECHANGE_DELAY;
+ ohci_writel (ohci, OHCI_INTR_RHSC, ®s->intrstatus);
+ usb_hcd_poll_rh_status(hcd);
+ }
if (ints & OHCI_INTR_UE) {
disable (ohci);
ohci_usb_reset (ohci);
ohci_writel (ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
-
+ free_irq(hcd->irq, hcd);
+ hcd->irq = -1;
+
remove_debug_files (ohci);
- unregister_reboot_notifier (&ohci->reboot_notifier);
ohci_mem_cleanup (ohci);
if (ohci->hcca) {
dma_free_coherent (hcd->self.controller,
#include "ohci-at91.c"
#endif
+#ifdef CONFIG_ARCH_PNX4008
+#include "ohci-pnx4008.c"
+#endif
+
#if !(defined(CONFIG_PCI) \
|| defined(CONFIG_SA1111) \
|| defined(CONFIG_ARCH_S3C2410) \
|| defined (CONFIG_USB_OHCI_HCD_PPC_SOC) \
|| defined (CONFIG_ARCH_AT91RM9200) \
|| defined (CONFIG_ARCH_AT91SAM9261) \
+ || defined (CONFIG_ARCH_PNX4008) \
)
#error "missing bus glue for ohci-hcd"
#endif