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Diffstat (limited to 'include/linux/usb/hcd.h')
-rw-r--r--include/linux/usb/hcd.h31
1 files changed, 25 insertions, 6 deletions
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 2e3a4ea1a3da..3b571f1ffbb3 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -89,18 +89,33 @@ struct usb_hcd {
*/
const struct hc_driver *driver; /* hw-specific hooks */
- /* Flags that need to be manipulated atomically */
+ /* Flags that need to be manipulated atomically because they can
+ * change while the host controller is running. Always use
+ * set_bit() or clear_bit() to change their values.
+ */
unsigned long flags;
-#define HCD_FLAG_HW_ACCESSIBLE 0x00000001
-#define HCD_FLAG_SAW_IRQ 0x00000002
+#define HCD_FLAG_HW_ACCESSIBLE 0 /* at full power */
+#define HCD_FLAG_SAW_IRQ 1
+#define HCD_FLAG_POLL_RH 2 /* poll for rh status? */
+#define HCD_FLAG_POLL_PENDING 3 /* status has changed? */
+#define HCD_FLAG_WAKEUP_PENDING 4 /* root hub is resuming? */
+
+ /* The flags can be tested using these macros; they are likely to
+ * be slightly faster than test_bit().
+ */
+#define HCD_HW_ACCESSIBLE(hcd) ((hcd)->flags & (1U << HCD_FLAG_HW_ACCESSIBLE))
+#define HCD_SAW_IRQ(hcd) ((hcd)->flags & (1U << HCD_FLAG_SAW_IRQ))
+#define HCD_POLL_RH(hcd) ((hcd)->flags & (1U << HCD_FLAG_POLL_RH))
+#define HCD_POLL_PENDING(hcd) ((hcd)->flags & (1U << HCD_FLAG_POLL_PENDING))
+#define HCD_WAKEUP_PENDING(hcd) ((hcd)->flags & (1U << HCD_FLAG_WAKEUP_PENDING))
+ /* Flags that get set only during HCD registration or removal. */
unsigned rh_registered:1;/* is root hub registered? */
+ unsigned rh_pollable:1; /* may we poll the root hub? */
/* The next flag is a stopgap, to be removed when all the HCDs
* support the new root-hub polling mechanism. */
unsigned uses_new_polling:1;
- unsigned poll_rh:1; /* poll for rh status? */
- unsigned poll_pending:1; /* status has changed? */
unsigned wireless:1; /* Wireless USB HCD */
unsigned authorized_default:1;
unsigned has_tt:1; /* Integrated TT in root hub */
@@ -198,7 +213,7 @@ struct hc_driver {
* a whole, not just the root hub; they're for PCI bus glue.
*/
/* called after suspending the hub, before entering D3 etc */
- int (*pci_suspend)(struct usb_hcd *hcd);
+ int (*pci_suspend)(struct usb_hcd *hcd, bool do_wakeup);
/* called after entering D0 (etc), before resuming the hub */
int (*pci_resume)(struct usb_hcd *hcd, bool hibernated);
@@ -299,6 +314,10 @@ struct hc_driver {
int (*update_hub_device)(struct usb_hcd *, struct usb_device *hdev,
struct usb_tt *tt, gfp_t mem_flags);
int (*reset_device)(struct usb_hcd *, struct usb_device *);
+ /* Notifies the HCD after a device is connected and its
+ * address is set
+ */
+ int (*update_device)(struct usb_hcd *, struct usb_device *);
};
extern int usb_hcd_link_urb_to_ep(struct usb_hcd *hcd, struct urb *urb);