const char *product_desc; /* product/vendor string */
char irq_descr[24]; /* driver + bus # */
- struct timer_list rh_timer; /* drives root hub */
+ struct timer_list rh_timer; /* drives root-hub polling */
+ struct urb *status_urb; /* the current status urb */
/*
* hardware info/state
unsigned remote_wakeup:1;/* sw should use wakeup? */
unsigned rh_registered:1;/* is root hub registered? */
+ /* 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? */
+
int irq; /* irq allocated */
void __iomem *regs; /* device memory/io */
u64 rsrc_start; /* memory/io resource start */
u64 rsrc_len; /* memory/io resource length */
+ unsigned power_budget; /* in mA, 0 = no limit */
#define HCD_BUFFER_POOLS 4
struct dma_pool *pool [HCD_BUFFER_POOLS];
struct usb_operations {
int (*get_frame_number) (struct usb_device *usb_dev);
- int (*submit_urb) (struct urb *urb, int mem_flags);
+ int (*submit_urb) (struct urb *urb, unsigned mem_flags);
int (*unlink_urb) (struct urb *urb, int status);
/* allocate dma-consistent buffer for URB_DMA_NOMAPPING */
void *(*buffer_alloc)(struct usb_bus *bus, size_t size,
- int mem_flags,
+ unsigned mem_flags,
dma_addr_t *dma);
void (*buffer_free)(struct usb_bus *bus, size_t size,
void *addr, dma_addr_t dma);
int (*urb_enqueue) (struct usb_hcd *hcd,
struct usb_host_endpoint *ep,
struct urb *urb,
- int mem_flags);
+ unsigned mem_flags);
int (*urb_dequeue) (struct usb_hcd *hcd, struct urb *urb);
/* hw synch, freeing endpoint resources that urb_dequeue can't */
int (*hub_suspend)(struct usb_hcd *);
int (*hub_resume)(struct usb_hcd *);
int (*start_port_reset)(struct usb_hcd *, unsigned port_num);
+ void (*hub_irq_enable)(struct usb_hcd *);
+ /* Needed only if port-change IRQs are level-triggered */
};
extern void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb, struct pt_regs *regs);
void hcd_buffer_destroy (struct usb_hcd *hcd);
void *hcd_buffer_alloc (struct usb_bus *bus, size_t size,
- int mem_flags, dma_addr_t *dma);
+ unsigned mem_flags, dma_addr_t *dma);
void hcd_buffer_free (struct usb_bus *bus, size_t size,
void *addr, dma_addr_t dma);
/* generic bus glue, needed for host controllers that don't use PCI */
extern irqreturn_t usb_hcd_irq (int irq, void *__hcd, struct pt_regs *r);
+
extern void usb_hc_died (struct usb_hcd *hcd);
+extern void usb_hcd_poll_rh_status(struct usb_hcd *hcd);
/* -------------------------------------------------------------------------- */
extern int usb_check_bandwidth (struct usb_device *dev, struct urb *urb);
/*
- * Ceiling microseconds (typical) for that many bytes at high speed
+ * Ceiling [nano/micro]seconds (typical) for that many bytes at high speed
* ISO is a bit less, no ACK ... from USB 2.0 spec, 5.11.3 (and needed
* to preallocate bandwidth)
*/
#define USB2_HOST_DELAY 5 /* nsec, guess */
-#define HS_USECS(bytes) NS_TO_US ( ((55 * 8 * 2083)/1000) \
+#define HS_NSECS(bytes) ( ((55 * 8 * 2083)/1000) \
+ ((2083UL * (3167 + BitTime (bytes)))/1000) \
+ USB2_HOST_DELAY)
-#define HS_USECS_ISO(bytes) NS_TO_US ( ((38 * 8 * 2083)/1000) \
+#define HS_NSECS_ISO(bytes) ( ((38 * 8 * 2083)/1000) \
+ ((2083UL * (3167 + BitTime (bytes)))/1000) \
+ USB2_HOST_DELAY)
+#define HS_USECS(bytes) NS_TO_US (HS_NSECS(bytes))
+#define HS_USECS_ISO(bytes) NS_TO_US (HS_NSECS_ISO(bytes))
extern long usb_calc_bus_time (int speed, int is_input,
int isoc, int bytecount);
extern struct usb_bus *usb_alloc_bus (struct usb_operations *);
-extern int usb_hcd_register_root_hub (struct usb_device *usb_dev,
- struct usb_hcd *hcd);
-
extern void usb_hcd_resume_root_hub (struct usb_hcd *hcd);
extern void usb_set_device_state(struct usb_device *udev,
extern struct usb_bus *usb_bus_get (struct usb_bus *bus);
extern void usb_bus_put (struct usb_bus *bus);
+extern void usb_enable_root_hub_irq (struct usb_bus *bus);
+
extern int usb_find_interface_driver (struct usb_device *dev,
struct usb_interface *interface);