diff options
Diffstat (limited to 'drivers/usb/core/hcd.h')
| -rw-r--r-- | drivers/usb/core/hcd.h | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index 325a51656c3..8dc13cde2f7 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -65,7 +65,8 @@ struct usb_hcd { /* usb_bus.hcpriv points to this */ 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 @@ -76,10 +77,17 @@ struct usb_hcd { /* usb_bus.hcpriv points to this */ 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]; @@ -207,6 +215,8 @@ struct hc_driver { 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); @@ -243,7 +253,9 @@ void hcd_buffer_free (struct usb_bus *bus, size_t size, /* 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); /* -------------------------------------------------------------------------- */ @@ -341,9 +353,6 @@ extern long usb_calc_bus_time (int speed, int is_input, 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, @@ -360,6 +369,8 @@ extern wait_queue_head_t usb_kill_urb_queue; 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); |