summaryrefslogtreecommitdiff
path: root/drivers/usb/host
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/host')
-rw-r--r--drivers/usb/host/ohci-hcd.c105
-rw-r--r--drivers/usb/host/ohci-hub.c1
-rw-r--r--drivers/usb/host/ohci-pci.c7
-rw-r--r--drivers/usb/host/ohci.h17
4 files changed, 113 insertions, 17 deletions
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index fc627fd54116..20a632d09f93 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -79,13 +79,7 @@ static const char hcd_name [] = "ohci_hcd";
#include "pci-quirks.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);
-
-#if defined(CONFIG_PM) || defined(CONFIG_PCI)
-static int ohci_restart (struct ohci_hcd *ohci);
-#endif
-
#ifdef CONFIG_PCI
static void sb800_prefetch(struct ohci_hcd *ohci, int on);
#else
@@ -772,6 +766,32 @@ retry:
return 0;
}
+/* ohci_setup routine for generic controller initialization */
+
+int ohci_setup(struct usb_hcd *hcd)
+{
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+
+ ohci_hcd_init(ohci);
+
+ return ohci_init(ohci);
+}
+EXPORT_SYMBOL_GPL(ohci_setup);
+
+/* ohci_start routine for generic controller start of all OHCI bus glue */
+static int ohci_start(struct usb_hcd *hcd)
+{
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+ int ret;
+
+ ret = ohci_run(ohci);
+ if (ret < 0) {
+ ohci_err(ohci, "can't start\n");
+ ohci_stop(hcd);
+ }
+ return ret;
+}
+
/*-------------------------------------------------------------------------*/
/* an interrupt happens */
@@ -953,12 +973,13 @@ static void ohci_stop (struct usb_hcd *hcd)
#if defined(CONFIG_PM) || defined(CONFIG_PCI)
/* must not be called from interrupt context */
-static int ohci_restart (struct ohci_hcd *ohci)
+int ohci_restart(struct ohci_hcd *ohci)
{
int temp;
int i;
struct urb_priv *priv;
+ ohci_init(ohci);
spin_lock_irq(&ohci->lock);
ohci->rh_state = OHCI_RH_HALTED;
@@ -1012,12 +1033,13 @@ static int ohci_restart (struct ohci_hcd *ohci)
ohci_dbg(ohci, "restart complete\n");
return 0;
}
+EXPORT_SYMBOL_GPL(ohci_restart);
#endif
#ifdef CONFIG_PM
-static int __maybe_unused ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
+int ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
{
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
unsigned long flags;
@@ -1035,9 +1057,10 @@ static int __maybe_unused ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
return 0;
}
+EXPORT_SYMBOL_GPL(ohci_suspend);
-static int __maybe_unused ohci_resume(struct usb_hcd *hcd, bool hibernated)
+int ohci_resume(struct usb_hcd *hcd, bool hibernated)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int port;
@@ -1085,8 +1108,72 @@ static int __maybe_unused ohci_resume(struct usb_hcd *hcd, bool hibernated)
return 0;
}
+EXPORT_SYMBOL_GPL(ohci_resume);
+
+#endif
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * Generic structure: This gets copied for platform drivers so that
+ * individual entries can be overridden as needed.
+ */
+static const struct hc_driver ohci_hc_driver = {
+ .description = hcd_name,
+ .product_desc = "OHCI Host Controller",
+ .hcd_priv_size = sizeof(struct ohci_hcd),
+
+ /*
+ * generic hardware linkage
+ */
+ .irq = ohci_irq,
+ .flags = HCD_MEMORY | HCD_USB11,
+
+ /*
+ * basic lifecycle operations
+ */
+ .reset = ohci_setup,
+ .start = ohci_start,
+ .stop = ohci_stop,
+ .shutdown = ohci_shutdown,
+
+ /*
+ * managing i/o requests and associated device resources
+ */
+ .urb_enqueue = ohci_urb_enqueue,
+ .urb_dequeue = ohci_urb_dequeue,
+ .endpoint_disable = ohci_endpoint_disable,
+
+ /*
+ * scheduling support
+ */
+ .get_frame_number = ohci_get_frame,
+
+ /*
+ * root hub support
+ */
+ .hub_status_data = ohci_hub_status_data,
+ .hub_control = ohci_hub_control,
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
#endif
+ .start_port_reset = ohci_start_port_reset,
+};
+
+void ohci_init_driver(struct hc_driver *drv,
+ const struct ohci_driver_overrides *over)
+{
+ /* Copy the generic table to drv and then apply the overrides */
+ *drv = ohci_hc_driver;
+
+ drv->product_desc = over->product_desc;
+ drv->hcd_priv_size += over->extra_priv_size;
+ if (over->reset)
+ drv->reset = over->reset;
+}
+EXPORT_SYMBOL_GPL(ohci_init_driver);
/*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
index 60ff4220e8b4..2347ab83f046 100644
--- a/drivers/usb/host/ohci-hub.c
+++ b/drivers/usb/host/ohci-hub.c
@@ -176,7 +176,6 @@ __acquires(ohci->lock)
if (status == -EBUSY) {
if (!autostopped) {
spin_unlock_irq (&ohci->lock);
- (void) ohci_init (ohci);
status = ohci_restart (ohci);
usb_root_hub_lost_power(hcd->self.root_hub);
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index 951514ef446d..2c27a5fc4bfe 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -123,13 +123,6 @@ static void ohci_quirk_nec_worker(struct work_struct *work)
struct ohci_hcd *ohci = container_of(work, struct ohci_hcd, nec_work);
int status;
- status = ohci_init(ohci);
- if (status != 0) {
- ohci_err(ohci, "Restarting NEC controller failed in %s, %d\n",
- "ohci_init", status);
- return;
- }
-
status = ohci_restart(ohci);
if (status != 0)
ohci_err(ohci, "Restarting NEC controller failed in %s, %d\n",
diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h
index d3299143d9e2..3b5848222463 100644
--- a/drivers/usb/host/ohci.h
+++ b/drivers/usb/host/ohci.h
@@ -718,3 +718,20 @@ static inline u32 roothub_status (struct ohci_hcd *hc)
{ return ohci_readl (hc, &hc->regs->roothub.status); }
static inline u32 roothub_portstatus (struct ohci_hcd *hc, int i)
{ return read_roothub (hc, portstatus [i], 0xffe0fce0); }
+
+/* Declarations of things exported for use by ohci platform drivers */
+
+struct ohci_driver_overrides {
+ const char *product_desc;
+ size_t extra_priv_size;
+ int (*reset)(struct usb_hcd *hcd);
+};
+
+extern void ohci_init_driver(struct hc_driver *drv,
+ const struct ohci_driver_overrides *over);
+extern int ohci_restart(struct ohci_hcd *ohci);
+extern int ohci_setup(struct usb_hcd *hcd);
+#ifdef CONFIG_PM
+extern int ohci_suspend(struct usb_hcd *hcd, bool do_wakeup);
+extern int ohci_resume(struct usb_hcd *hcd, bool hibernated);
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 09:02:32 +0000