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path: root/drivers/usb/core/hcd.h
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Diffstat (limited to 'drivers/usb/core/hcd.h')
-rw-r--r--drivers/usb/core/hcd.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h
index f750eb1ab595..e7d4479de41c 100644
--- a/drivers/usb/core/hcd.h
+++ b/drivers/usb/core/hcd.h
@@ -206,6 +206,11 @@ struct hc_driver {
void (*endpoint_disable)(struct usb_hcd *hcd,
struct usb_host_endpoint *ep);
+ /* (optional) reset any endpoint state such as sequence number
+ and current window */
+ void (*endpoint_reset)(struct usb_hcd *hcd,
+ struct usb_host_endpoint *ep);
+
/* root hub support */
int (*hub_status_data) (struct usb_hcd *hcd, char *buf);
int (*hub_control) (struct usb_hcd *hcd,
@@ -234,6 +239,8 @@ extern void usb_hcd_flush_endpoint(struct usb_device *udev,
struct usb_host_endpoint *ep);
extern void usb_hcd_disable_endpoint(struct usb_device *udev,
struct usb_host_endpoint *ep);
+extern void usb_hcd_reset_endpoint(struct usb_device *udev,
+ struct usb_host_endpoint *ep);
extern void usb_hcd_synchronize_unlinks(struct usb_device *udev);
extern int usb_hcd_get_frame_number(struct usb_device *udev);
@@ -279,6 +286,13 @@ extern irqreturn_t usb_hcd_irq(int irq, void *__hcd);
extern void usb_hc_died(struct usb_hcd *hcd);
extern void usb_hcd_poll_rh_status(struct usb_hcd *hcd);
+/* The D0/D1 toggle bits ... USE WITH CAUTION (they're almost hcd-internal) */
+#define usb_gettoggle(dev, ep, out) (((dev)->toggle[out] >> (ep)) & 1)
+#define usb_dotoggle(dev, ep, out) ((dev)->toggle[out] ^= (1 << (ep)))
+#define usb_settoggle(dev, ep, out, bit) \
+ ((dev)->toggle[out] = ((dev)->toggle[out] & ~(1 << (ep))) | \
+ ((bit) << (ep)))
+
/* -------------------------------------------------------------------------- */
/* Enumeration is only for the hub driver, or HCD virtual root hubs */