1 files changed, 30 insertions, 19 deletions

diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index 02255d69e1fe..4bac57c74ec2 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -314,26 +314,29 @@ static inline int __interval_to_skel(int interval)
 }
 
 /*
- * Device states for the host controller.
+ * States for the root hub.
  *
  * To prevent "bouncing" in the presence of electrical noise,
- * we insist on a 1-second "grace" period, before switching to
- * the RUNNING or SUSPENDED states, during which the state is
- * not allowed to change.
- *
- * The resume process is divided into substates in order to avoid
- * potentially length delays during the timer handler.
- *
- * States in which the host controller is halted must have values <= 0.
+ * when there are no devices attached we delay for 1 second in the
+ * RUNNING_NODEVS state before switching to the AUTO_STOPPED state.
+ * 
+ * (Note that the AUTO_STOPPED state won't be necessary once the hub
+ * driver learns to autosuspend.)
  */
-enum uhci_state {
-        UHCI_RESET,
-        UHCI_RUNNING_GRACE,             /* Before RUNNING */
-        UHCI_RUNNING,                   /* The normal state */
-        UHCI_SUSPENDING_GRACE,          /* Before SUSPENDED */
-        UHCI_SUSPENDED = -10,           /* When no devices are attached */
-        UHCI_RESUMING_1,
-        UHCI_RESUMING_2
+enum uhci_rh_state {
+        /* In the next 4 states the HC must be halted */
+        UHCI_RH_RESET,
+        UHCI_RH_SUSPENDED,
+        UHCI_RH_AUTO_STOPPED,
+        UHCI_RH_RESUMING,
+
+        /* In the next state the HC changes from running to halted, so it
+         * can legally appear either way */
+        UHCI_RH_SUSPENDING,
+
+        /* In the next two states it's an error if the HC is halted */
+        UHCI_RH_RUNNING,                /* The normal state */
+        UHCI_RH_RUNNING_NODEVS,         /* Running with no devices attached */
 };
 
 /*
@@ -363,8 +366,9 @@ struct uhci_hcd {
         int fsbr;                               /* Full-speed bandwidth reclamation */
         unsigned long fsbrtimeout;              /* FSBR delay */
 
-        enum uhci_state state;                  /* FIXME: needs a spinlock */
-        unsigned long state_end;                /* Time of next transition */
+        enum uhci_rh_state rh_state;
+        unsigned long auto_stop_time;           /* When to AUTO_STOP */
+
         unsigned int frame_number;              /* As of last check */
         unsigned int is_stopped;
 #define UHCI_IS_STOPPED         9999            /* Larger than a frame # */
@@ -451,4 +455,11 @@ struct urb_priv {
  * #2 urb->lock
  */
 
+
+/* Some special IDs */
+
+#define PCI_VENDOR_ID_GENESYS           0x17a0
+#define PCI_DEVICE_ID_GL880S_UHCI       0x8083
+#define PCI_DEVICE_ID_GL880S_EHCI       0x8084
+
 #endif