1 files changed, 37 insertions, 22 deletions

diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index 02255d69e1fe..bf9c5f9b508b 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -41,6 +41,7 @@
 #define USBFRNUM        6
 #define USBFLBASEADD    8
 #define USBSOF          12
+#define   USBSOF_DEFAULT        64      /* Frame length is exactly 1 ms */
 
 /* USB port status and control registers */
 #define USBPORTSC1      16
@@ -66,6 +67,8 @@
 /* Legacy support register */
 #define USBLEGSUP               0xc0
 #define   USBLEGSUP_DEFAULT     0x2000  /* only PIRQ enable set */
+#define   USBLEGSUP_RWC         0x8f00  /* the R/WC bits */
+#define   USBLEGSUP_RO          0x5040  /* R/O and reserved bits */
 
 #define UHCI_NULL_DATA_SIZE     0x7FF   /* for UHCI controller TD */
 
@@ -111,7 +114,6 @@ struct uhci_qh {
         /* Software fields */
         dma_addr_t dma_handle;
 
-        struct usb_device *dev;
         struct urb_priv *urbp;
 
         struct list_head list;          /* P: uhci->frame_list_lock */
@@ -203,7 +205,6 @@ struct uhci_td {
         /* Software fields */
         dma_addr_t dma_handle;
 
-        struct usb_device *dev;
         struct urb *urb;
 
         struct list_head list;          /* P: urb->lock */
@@ -314,26 +315,32 @@ 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 following states the HC must be halted.
+         * These two must come first */
+        UHCI_RH_RESET,
+        UHCI_RH_SUSPENDED,
+
+        UHCI_RH_AUTO_STOPPED,
+        UHCI_RH_RESUMING,
+
+        /* In this state the HC changes from running to halted,
+         * so it can legally appear either way. */
+        UHCI_RH_SUSPENDING,
+
+        /* In the following states it's an error if the HC is halted.
+         * These two must come last */
+        UHCI_RH_RUNNING,                /* The normal state */
+        UHCI_RH_RUNNING_NODEVS,         /* Running with no devices attached */
 };
 
 /*
@@ -363,15 +370,16 @@ 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 # */
 
         unsigned int scan_in_progress:1;        /* Schedule scan is running */
         unsigned int need_rescan:1;             /* Redo the schedule scan */
-        unsigned int resume_detect:1;           /* Need a Global Resume */
+        unsigned int hc_inaccessible:1;         /* HC is suspended or dead */
 
         /* Support for port suspend/resume/reset */
         unsigned long port_c_suspend;           /* Bit-arrays of ports */
@@ -451,4 +459,11 @@ 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