X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fusb%2Fcore%2Fhcd.h;h=e7d4479de41cd04b692d1fe659275f9cadd8c69a;hb=3e241ff0c57cb610301009fe8c3b9da4c6877800;hp=2a269ca20517eda453d44318c3a09a39386c6227;hpb=896fbd7199035958013d106329843d8ae9618753;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index 2a269ca..e7d4479 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -16,9 +16,15 @@ * Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +#ifndef __USB_CORE_HCD_H +#define __USB_CORE_HCD_H #ifdef __KERNEL__ +#include + +#define MAX_TOPO_LEVEL 6 + /* This file contains declarations of usbcore internals that are mostly * used or exposed by Host Controller Drivers. */ @@ -26,7 +32,7 @@ /* * USB Packet IDs (PIDs) */ -#define USB_PID_UNDEF_0 0xf0 +#define USB_PID_EXT 0xf0 /* USB 2.0 LPM ECN */ #define USB_PID_OUT 0xe1 #define USB_PID_ACK 0xd2 #define USB_PID_DATA0 0xc3 @@ -51,6 +57,12 @@ * * Since "struct usb_bus" is so thin, you can't share much code in it. * This framework is a layer over that, and should be more sharable. + * + * @authorized_default: Specifies if new devices are authorized to + * connect by default or they require explicit + * user space authorization; this bit is settable + * through /sys/class/usb_host/X/authorized_default. + * For the rest is RO, so we don't lock to r/w it. */ /*-------------------------------------------------------------------------*/ @@ -68,6 +80,9 @@ struct usb_hcd { struct timer_list rh_timer; /* drives root-hub polling */ struct urb *status_urb; /* the current status urb */ +#ifdef CONFIG_PM + struct work_struct wakeup_work; /* for remote wakeup */ +#endif /* * hardware info/state @@ -87,6 +102,8 @@ struct usb_hcd { 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 */ int irq; /* irq allocated */ void __iomem *regs; /* device memory/io */ @@ -113,7 +130,7 @@ struct usb_hcd { /* more shared queuing code would be good; it should support * smarter scheduling, handle transaction translators, etc; - * input size of periodic table to an interrupt scheduler. + * input size of periodic table to an interrupt scheduler. * (ohci 32, uhci 1024, ehci 256/512/1024). */ @@ -121,16 +138,16 @@ struct usb_hcd { * this structure. */ unsigned long hcd_priv[0] - __attribute__ ((aligned (sizeof(unsigned long)))); + __attribute__ ((aligned(sizeof(unsigned long)))); }; /* 2.4 does this a bit differently ... */ -static inline struct usb_bus *hcd_to_bus (struct usb_hcd *hcd) +static inline struct usb_bus *hcd_to_bus(struct usb_hcd *hcd) { return &hcd->self; } -static inline struct usb_hcd *bus_to_hcd (struct usb_bus *bus) +static inline struct usb_hcd *bus_to_hcd(struct usb_bus *bus) { return container_of(bus, struct usb_hcd, self); } @@ -153,6 +170,7 @@ struct hc_driver { int flags; #define HCD_MEMORY 0x0001 /* HC regs use memory (else I/O) */ +#define HCD_LOCAL_MEM 0x0002 /* HC needs local memory */ #define HCD_USB11 0x0010 /* USB 1.1 */ #define HCD_USB2 0x0020 /* USB 2.0 */ @@ -164,10 +182,10 @@ 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 (*suspend) (struct usb_hcd *hcd, pm_message_t message); + int (*pci_suspend) (struct usb_hcd *hcd, pm_message_t message); /* called after entering D0 (etc), before resuming the hub */ - int (*resume) (struct usb_hcd *hcd); + int (*pci_resume) (struct usb_hcd *hcd); /* cleanly make HCD stop writing memory and doing I/O */ void (*stop) (struct usb_hcd *hcd); @@ -179,77 +197,102 @@ struct hc_driver { int (*get_frame_number) (struct usb_hcd *hcd); /* manage i/o requests, device state */ - int (*urb_enqueue) (struct usb_hcd *hcd, - struct usb_host_endpoint *ep, - struct urb *urb, - gfp_t mem_flags); - int (*urb_dequeue) (struct usb_hcd *hcd, struct urb *urb); + int (*urb_enqueue)(struct usb_hcd *hcd, + struct urb *urb, gfp_t mem_flags); + int (*urb_dequeue)(struct usb_hcd *hcd, + struct urb *urb, int status); /* hw synch, freeing endpoint resources that urb_dequeue can't */ void (*endpoint_disable)(struct usb_hcd *hcd, struct usb_host_endpoint *ep); + /* (optional) reset any endpoint state such as sequence number + and current window */ + void (*endpoint_reset)(struct usb_hcd *hcd, + struct usb_host_endpoint *ep); + /* root hub support */ - int (*hub_status_data) (struct usb_hcd *hcd, char *buf); - int (*hub_control) (struct usb_hcd *hcd, + int (*hub_status_data) (struct usb_hcd *hcd, char *buf); + int (*hub_control) (struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength); - int (*bus_suspend)(struct usb_hcd *); - int (*bus_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 */ + int (*bus_suspend)(struct usb_hcd *); + int (*bus_resume)(struct usb_hcd *); + int (*start_port_reset)(struct usb_hcd *, unsigned port_num); + + /* force handover of high-speed port to full-speed companion */ + void (*relinquish_port)(struct usb_hcd *, int); + /* has a port been handed over to a companion? */ + int (*port_handed_over)(struct usb_hcd *, int); }; -extern int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags); -extern int usb_hcd_unlink_urb (struct urb *urb, int status); -extern void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb); -extern void usb_hcd_endpoint_disable (struct usb_device *udev, +extern int usb_hcd_link_urb_to_ep(struct usb_hcd *hcd, struct urb *urb); +extern int usb_hcd_check_unlink_urb(struct usb_hcd *hcd, struct urb *urb, + int status); +extern void usb_hcd_unlink_urb_from_ep(struct usb_hcd *hcd, struct urb *urb); + +extern int usb_hcd_submit_urb(struct urb *urb, gfp_t mem_flags); +extern int usb_hcd_unlink_urb(struct urb *urb, int status); +extern void usb_hcd_giveback_urb(struct usb_hcd *hcd, struct urb *urb, + int status); +extern void usb_hcd_flush_endpoint(struct usb_device *udev, + struct usb_host_endpoint *ep); +extern void usb_hcd_disable_endpoint(struct usb_device *udev, struct usb_host_endpoint *ep); -extern int usb_hcd_get_frame_number (struct usb_device *udev); +extern void usb_hcd_reset_endpoint(struct usb_device *udev, + struct usb_host_endpoint *ep); +extern void usb_hcd_synchronize_unlinks(struct usb_device *udev); +extern int usb_hcd_get_frame_number(struct usb_device *udev); -extern struct usb_hcd *usb_create_hcd (const struct hc_driver *driver, - struct device *dev, char *bus_name); -extern struct usb_hcd *usb_get_hcd (struct usb_hcd *hcd); -extern void usb_put_hcd (struct usb_hcd *hcd); +extern struct usb_hcd *usb_create_hcd(const struct hc_driver *driver, + struct device *dev, const char *bus_name); +extern struct usb_hcd *usb_get_hcd(struct usb_hcd *hcd); +extern void usb_put_hcd(struct usb_hcd *hcd); extern int usb_add_hcd(struct usb_hcd *hcd, unsigned int irqnum, unsigned long irqflags); extern void usb_remove_hcd(struct usb_hcd *hcd); struct platform_device; -extern void usb_hcd_platform_shutdown(struct platform_device* dev); +extern void usb_hcd_platform_shutdown(struct platform_device *dev); #ifdef CONFIG_PCI struct pci_dev; struct pci_device_id; -extern int usb_hcd_pci_probe (struct pci_dev *dev, +extern int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id); -extern void usb_hcd_pci_remove (struct pci_dev *dev); +extern void usb_hcd_pci_remove(struct pci_dev *dev); #ifdef CONFIG_PM -extern int usb_hcd_pci_suspend (struct pci_dev *dev, pm_message_t state); -extern int usb_hcd_pci_resume (struct pci_dev *dev); +extern int usb_hcd_pci_suspend(struct pci_dev *dev, pm_message_t msg); +extern int usb_hcd_pci_resume(struct pci_dev *dev); #endif /* CONFIG_PM */ -extern void usb_hcd_pci_shutdown (struct pci_dev *dev); +extern void usb_hcd_pci_shutdown(struct pci_dev *dev); #endif /* CONFIG_PCI */ /* pci-ish (pdev null is ok) buffer alloc/mapping support */ -int hcd_buffer_create (struct usb_hcd *hcd); -void hcd_buffer_destroy (struct usb_hcd *hcd); +int hcd_buffer_create(struct usb_hcd *hcd); +void hcd_buffer_destroy(struct usb_hcd *hcd); -void *hcd_buffer_alloc (struct usb_bus *bus, size_t size, +void *hcd_buffer_alloc(struct usb_bus *bus, size_t size, gfp_t mem_flags, dma_addr_t *dma); -void hcd_buffer_free (struct usb_bus *bus, size_t size, +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); +extern irqreturn_t usb_hcd_irq(int irq, void *__hcd); -extern void usb_hc_died (struct usb_hcd *hcd); +extern void usb_hc_died(struct usb_hcd *hcd); extern void usb_hcd_poll_rh_status(struct usb_hcd *hcd); +/* The D0/D1 toggle bits ... USE WITH CAUTION (they're almost hcd-internal) */ +#define usb_gettoggle(dev, ep, out) (((dev)->toggle[out] >> (ep)) & 1) +#define usb_dotoggle(dev, ep, out) ((dev)->toggle[out] ^= (1 << (ep))) +#define usb_settoggle(dev, ep, out, bit) \ + ((dev)->toggle[out] = ((dev)->toggle[out] & ~(1 << (ep))) | \ + ((bit) << (ep))) + /* -------------------------------------------------------------------------- */ /* Enumeration is only for the hub driver, or HCD virtual root hubs */ @@ -300,9 +343,9 @@ extern void usb_destroy_configuration(struct usb_device *dev); * Generic bandwidth allocation constants/support */ #define FRAME_TIME_USECS 1000L -#define BitTime(bytecount) (7 * 8 * bytecount / 6) /* with integer truncation */ +#define BitTime(bytecount) (7 * 8 * bytecount / 6) /* with integer truncation */ /* Trying not to use worst-case bit-stuffing - of (7/6 * 8 * bytecount) = 9.33 * bytecount */ + * of (7/6 * 8 * bytecount) = 9.33 * bytecount */ /* bytecount = data payload byte count */ #define NS_TO_US(ns) ((ns + 500L) / 1000L) @@ -314,9 +357,9 @@ extern void usb_destroy_configuration(struct usb_device *dev); */ #define BW_HOST_DELAY 1000L /* nanoseconds */ #define BW_HUB_LS_SETUP 333L /* nanoseconds */ - /* 4 full-speed bit times (est.) */ + /* 4 full-speed bit times (est.) */ -#define FRAME_TIME_BITS 12000L /* frame = 1 millisecond */ +#define FRAME_TIME_BITS 12000L /* frame = 1 millisecond */ #define FRAME_TIME_MAX_BITS_ALLOC (90L * FRAME_TIME_BITS / 100L) #define FRAME_TIME_MAX_USECS_ALLOC (90L * FRAME_TIME_USECS / 100L) @@ -326,16 +369,16 @@ extern void usb_destroy_configuration(struct usb_device *dev); * to preallocate bandwidth) */ #define USB2_HOST_DELAY 5 /* nsec, guess */ -#define HS_NSECS(bytes) ( ((55 * 8 * 2083) \ +#define HS_NSECS(bytes) (((55 * 8 * 2083) \ + (2083UL * (3 + BitTime(bytes))))/1000 \ + USB2_HOST_DELAY) -#define HS_NSECS_ISO(bytes) ( ((38 * 8 * 2083) \ +#define HS_NSECS_ISO(bytes) (((38 * 8 * 2083) \ + (2083UL * (3 + 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, +extern long usb_calc_bus_time(int speed, int is_input, int isoc, int bytecount); /*-------------------------------------------------------------------------*/ @@ -351,33 +394,21 @@ extern struct list_head usb_bus_list; extern struct mutex usb_bus_list_lock; extern wait_queue_head_t usb_kill_urb_queue; -extern void usb_enable_root_hub_irq (struct usb_bus *bus); - -extern int usb_find_interface_driver (struct usb_device *dev, +extern int usb_find_interface_driver(struct usb_device *dev, struct usb_interface *interface); #define usb_endpoint_out(ep_dir) (!((ep_dir) & USB_DIR_IN)) #ifdef CONFIG_PM -extern void usb_hcd_resume_root_hub (struct usb_hcd *hcd); -extern void usb_root_hub_lost_power (struct usb_device *rhdev); -extern int hcd_bus_suspend (struct usb_bus *bus); -extern int hcd_bus_resume (struct usb_bus *bus); +extern void usb_hcd_resume_root_hub(struct usb_hcd *hcd); +extern void usb_root_hub_lost_power(struct usb_device *rhdev); +extern int hcd_bus_suspend(struct usb_device *rhdev, pm_message_t msg); +extern int hcd_bus_resume(struct usb_device *rhdev, pm_message_t msg); #else static inline void usb_hcd_resume_root_hub(struct usb_hcd *hcd) { return; } - -static inline int hcd_bus_suspend(struct usb_bus *bus) -{ - return 0; -} - -static inline int hcd_bus_resume (struct usb_bus *bus) -{ - return 0; -} #endif /* CONFIG_PM */ /* @@ -390,13 +421,13 @@ static inline int hcd_bus_resume (struct usb_bus *bus) * these are expected to be called from the USB core/hub thread * with the kernel lock held */ -extern void usbfs_update_special (void); +extern void usbfs_update_special(void); extern int usbfs_init(void); extern void usbfs_cleanup(void); #else /* CONFIG_USB_DEVICEFS */ -static inline void usbfs_update_special (void) {} +static inline void usbfs_update_special(void) {} static inline int usbfs_init(void) { return 0; } static inline void usbfs_cleanup(void) { } @@ -404,12 +435,12 @@ static inline void usbfs_cleanup(void) { } /*-------------------------------------------------------------------------*/ -#if defined(CONFIG_USB_MON) +#if defined(CONFIG_USB_MON) || defined(CONFIG_USB_MON_MODULE) struct usb_mon_operations { void (*urb_submit)(struct usb_bus *bus, struct urb *urb); void (*urb_submit_error)(struct usb_bus *bus, struct urb *urb, int err); - void (*urb_complete)(struct usb_bus *bus, struct urb *urb); + void (*urb_complete)(struct usb_bus *bus, struct urb *urb, int status); /* void (*urb_unlink)(struct usb_bus *bus, struct urb *urb); */ }; @@ -428,10 +459,11 @@ static inline void usbmon_urb_submit_error(struct usb_bus *bus, struct urb *urb, (*mon_ops->urb_submit_error)(bus, urb, error); } -static inline void usbmon_urb_complete(struct usb_bus *bus, struct urb *urb) +static inline void usbmon_urb_complete(struct usb_bus *bus, struct urb *urb, + int status) { if (bus->monitored) - (*mon_ops->urb_complete)(bus, urb); + (*mon_ops->urb_complete)(bus, urb, status); } int usb_mon_register(struct usb_mon_operations *ops); @@ -442,14 +474,15 @@ void usb_mon_deregister(void); static inline void usbmon_urb_submit(struct usb_bus *bus, struct urb *urb) {} static inline void usbmon_urb_submit_error(struct usb_bus *bus, struct urb *urb, int error) {} -static inline void usbmon_urb_complete(struct usb_bus *bus, struct urb *urb) {} +static inline void usbmon_urb_complete(struct usb_bus *bus, struct urb *urb, + int status) {} -#endif /* CONFIG_USB_MON */ +#endif /* CONFIG_USB_MON || CONFIG_USB_MON_MODULE */ /*-------------------------------------------------------------------------*/ /* hub.h ... DeviceRemovable in 2.4.2-ac11, gone in 2.4.10 */ -// bleech -- resurfaced in 2.4.11 or 2.4.12 +/* bleech -- resurfaced in 2.4.11 or 2.4.12 */ #define bitmap DeviceRemovable @@ -457,9 +490,21 @@ static inline void usbmon_urb_complete(struct usb_bus *bus, struct urb *urb) {} /* random stuff */ -#define RUN_CONTEXT (in_irq () ? "in_irq" \ - : (in_interrupt () ? "in_interrupt" : "can sleep")) +#define RUN_CONTEXT (in_irq() ? "in_irq" \ + : (in_interrupt() ? "in_interrupt" : "can sleep")) + + +/* This rwsem is for use only by the hub driver and ehci-hcd. + * Nobody else should touch it. + */ +extern struct rw_semaphore ehci_cf_port_reset_rwsem; +/* Keep track of which host controller drivers are loaded */ +#define USB_UHCI_LOADED 0 +#define USB_OHCI_LOADED 1 +#define USB_EHCI_LOADED 2 +extern unsigned long usb_hcds_loaded; #endif /* __KERNEL__ */ +#endif /* __USB_CORE_HCD_H */