* @ep_dev: ep_device for sysfs info
* @extra: descriptors following this endpoint in the configuration
* @extralen: how many bytes of "extra" are valid
+ * @enabled: URBs may be submitted to this endpoint
*
* USB requests are always queued to a given endpoint, identified by a
* descriptor within an active interface in a given USB configuration.
unsigned char *extra; /* Extra descriptors */
int extralen;
+ int enabled;
};
/* host-side wrapper for one interface setting's parsed descriptors */
* endpoint configurations. They will be in no particular order.
* @num_altsetting: number of altsettings defined.
* @cur_altsetting: the current altsetting.
+ * @intf_assoc: interface association descriptor
* @driver: the USB driver that is bound to this interface.
* @minor: the minor number assigned to this interface, if this
* interface is bound to a driver that uses the USB major number.
* @condition: binding state of the interface: not bound, binding
* (in probe()), bound to a driver, or unbinding (in disconnect())
* @is_active: flag set when the interface is bound and not suspended.
+ * @sysfs_files_created: sysfs attributes exist
* @needs_remote_wakeup: flag set when the driver requires remote-wakeup
* capability during autosuspend.
* @dev: driver model's view of this device
* Each interface may have alternate settings. The initial configuration
* of a device sets altsetting 0, but the device driver can change
* that setting using usb_set_interface(). Alternate settings are often
- * used to control the the use of periodic endpoints, such as by having
+ * used to control the use of periodic endpoints, such as by having
* different endpoints use different amounts of reserved USB bandwidth.
* All standards-conformant USB devices that use isochronous endpoints
* will use them in non-default settings.
* active alternate setting */
unsigned num_altsetting; /* number of alternate settings */
+ /* If there is an interface association descriptor then it will list
+ * the associated interfaces */
+ struct usb_interface_assoc_descriptor *intf_assoc;
+
int minor; /* minor number this interface is
* bound to */
enum usb_interface_condition condition; /* state of binding */
unsigned is_active:1; /* the interface is not suspended */
+ unsigned sysfs_files_created:1; /* the sysfs attributes exist */
unsigned needs_remote_wakeup:1; /* driver requires remote wakeup */
struct device dev; /* interface specific device info */
- struct device *usb_dev; /* pointer to the usb class's device, if any */
+ struct device *usb_dev;
int pm_usage_cnt; /* usage counter for autosuspend */
};
#define to_usb_interface(d) container_of(d, struct usb_interface, dev)
#define interface_to_usbdev(intf) \
container_of(intf->dev.parent, struct usb_device, dev)
-static inline void *usb_get_intfdata (struct usb_interface *intf)
+static inline void *usb_get_intfdata(struct usb_interface *intf)
{
- return dev_get_drvdata (&intf->dev);
+ return dev_get_drvdata(&intf->dev);
}
-static inline void usb_set_intfdata (struct usb_interface *intf, void *data)
+static inline void usb_set_intfdata(struct usb_interface *intf, void *data)
{
dev_set_drvdata(&intf->dev, data);
}
/* this maximum is arbitrary */
#define USB_MAXINTERFACES 32
+#define USB_MAXIADS USB_MAXINTERFACES/2
/**
* struct usb_interface_cache - long-term representation of a device interface
* @desc: the device's configuration descriptor.
* @string: pointer to the cached version of the iConfiguration string, if
* present for this configuration.
+ * @intf_assoc: list of any interface association descriptors in this config
* @interface: array of pointers to usb_interface structures, one for each
* interface in the configuration. The number of interfaces is stored
* in desc.bNumInterfaces. These pointers are valid only while the
struct usb_config_descriptor desc;
char *string; /* iConfiguration string, if present */
+
+ /* List of any Interface Association Descriptors in this
+ * configuration. */
+ struct usb_interface_assoc_descriptor *intf_assoc[USB_MAXIADS];
+
/* the interfaces associated with this configuration,
* stored in no particular order */
struct usb_interface *interface[USB_MAXINTERFACES];
int __usb_get_extra_descriptor(char *buffer, unsigned size,
unsigned char type, void **ptr);
-#define usb_get_extra_descriptor(ifpoint,type,ptr)\
- __usb_get_extra_descriptor((ifpoint)->extra,(ifpoint)->extralen,\
- type,(void**)ptr)
+#define usb_get_extra_descriptor(ifpoint, type, ptr) \
+ __usb_get_extra_descriptor((ifpoint)->extra, \
+ (ifpoint)->extralen, \
+ type, (void **)ptr)
/* ----------------------------------------------------------------------- */
int bandwidth_int_reqs; /* number of Interrupt requests */
int bandwidth_isoc_reqs; /* number of Isoc. requests */
+#ifdef CONFIG_USB_DEVICEFS
struct dentry *usbfs_dentry; /* usbfs dentry entry for the bus */
-
- struct class_device *class_dev; /* class device for this bus */
+#endif
+ struct device *dev; /* device for this bus */
#if defined(CONFIG_USB_MON)
struct mon_bus *mon_bus; /* non-null when associated */
*
* Usbcore drivers should not set usbdev->state directly. Instead use
* usb_set_device_state().
+ *
+ * @authorized: (user space) policy determines if we authorize this
+ * device to be used or not. By default, wired USB
+ * devices are authorized. WUSB devices are not, until we
+ * authorize them from user space. FIXME -- complete doc
*/
struct usb_device {
int devnum; /* Address on USB bus */
u8 portnum; /* Parent port number (origin 1) */
u8 level; /* Number of USB hub ancestors */
+ unsigned can_submit:1; /* URBs may be submitted */
unsigned discon_suspended:1; /* Disconnected while suspended */
unsigned have_langid:1; /* whether string_langid is valid */
+ unsigned authorized:1; /* Policy has said we can use it */
+ unsigned wusb:1; /* Device is Wireless USB */
int string_langid; /* language ID for strings */
/* static strings from the device */
char *serial; /* iSerialNumber string, if present */
struct list_head filelist;
- struct device *usbfs_dev;
+#ifdef CONFIG_USB_DEVICE_CLASS
+ struct device *usb_classdev;
+#endif
+#ifdef CONFIG_USB_DEVICEFS
struct dentry *usbfs_dentry; /* usbfs dentry entry for the device */
-
+#endif
/*
* Child devices - these can be either new devices
* (if this is a hub device), or different instances
int pm_usage_cnt; /* usage counter for autosuspend */
u32 quirks; /* quirks of the whole device */
+ atomic_t urbnum; /* number of URBs submitted for
+ the whole device */
+
+ unsigned long active_duration; /* total time device is not suspended */
#ifdef CONFIG_PM
struct delayed_work autosuspend; /* for delayed autosuspends */
struct mutex pm_mutex; /* protects PM operations */
+ unsigned long last_busy; /* time of last use */
int autosuspend_delay; /* in jiffies */
+ unsigned long connect_time; /* time device was first connected */
unsigned auto_pm:1; /* autosuspend/resume in progress */
unsigned do_remote_wakeup:1; /* remote wakeup should be enabled */
+ unsigned reset_resume:1; /* needs reset instead of resume */
+ unsigned persist_enabled:1; /* USB_PERSIST enabled for this dev */
+ unsigned autosuspend_disabled:1; /* autosuspend and autoresume */
+ unsigned autoresume_disabled:1; /* disabled by the user */
+ unsigned skip_sys_resume:1; /* skip the next system resume */
#endif
};
#define to_usb_device(d) container_of(d, struct usb_device, dev)
usb_autopm_set_interface(intf);
}
+static inline void usb_mark_last_busy(struct usb_device *udev)
+{
+ udev->last_busy = jiffies;
+}
+
#else
static inline int usb_autopm_set_interface(struct usb_interface *intf)
{ }
static inline void usb_autopm_disable(struct usb_interface *intf)
{ }
+static inline void usb_mark_last_busy(struct usb_device *udev)
+{ }
#endif
/*-------------------------------------------------------------------------*/
/* for drivers using iso endpoints */
-extern int usb_get_current_frame_number (struct usb_device *usb_dev);
+extern int usb_get_current_frame_number(struct usb_device *usb_dev);
/* used these for multi-interface device registration */
extern int usb_driver_claim_interface(struct usb_driver *driver,
- struct usb_interface *iface, void* priv);
+ struct usb_interface *iface, void *priv);
/**
* usb_interface_claimed - returns true iff an interface is claimed
* may need to explicitly claim that lock.
*
*/
-static inline int usb_interface_claimed(struct usb_interface *iface) {
+static inline int usb_interface_claimed(struct usb_interface *iface)
+{
return (iface->dev.driver != NULL);
}
* USB 2.0 root hubs (EHCI host controllers) will get one path ID if they are
* high speed, and a different one if they are full or low speed.
*/
-static inline int usb_make_path (struct usb_device *dev, char *buf,
- size_t size)
+static inline int usb_make_path(struct usb_device *dev, char *buf, size_t size)
{
int actual;
- actual = snprintf (buf, size, "usb-%s-%s", dev->bus->bus_name,
- dev->devpath);
+ actual = snprintf(buf, size, "usb-%s-%s", dev->bus->bus_name,
+ dev->devpath);
return (actual >= (int)size) ? -1 : actual;
}
/*-------------------------------------------------------------------------*/
/**
+ * usb_endpoint_num - get the endpoint's number
+ * @epd: endpoint to be checked
+ *
+ * Returns @epd's number: 0 to 15.
+ */
+static inline int usb_endpoint_num(const struct usb_endpoint_descriptor *epd)
+{
+ return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+}
+
+/**
+ * usb_endpoint_type - get the endpoint's transfer type
+ * @epd: endpoint to be checked
+ *
+ * Returns one of USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT} according
+ * to @epd's transfer type.
+ */
+static inline int usb_endpoint_type(const struct usb_endpoint_descriptor *epd)
+{
+ return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
+}
+
+/**
* usb_endpoint_dir_in - check if the endpoint has IN direction
* @epd: endpoint to be checked
*
*
* Returns true if the endpoint is of type OUT, otherwise it returns false.
*/
-static inline int usb_endpoint_dir_out(const struct usb_endpoint_descriptor *epd)
+static inline int usb_endpoint_dir_out(
+ const struct usb_endpoint_descriptor *epd)
{
return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
}
*
* Returns true if the endpoint is of type bulk, otherwise it returns false.
*/
-static inline int usb_endpoint_xfer_bulk(const struct usb_endpoint_descriptor *epd)
+static inline int usb_endpoint_xfer_bulk(
+ const struct usb_endpoint_descriptor *epd)
{
return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_BULK);
*
* Returns true if the endpoint is of type control, otherwise it returns false.
*/
-static inline int usb_endpoint_xfer_control(const struct usb_endpoint_descriptor *epd)
+static inline int usb_endpoint_xfer_control(
+ const struct usb_endpoint_descriptor *epd)
{
return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_CONTROL);
* Returns true if the endpoint is of type interrupt, otherwise it returns
* false.
*/
-static inline int usb_endpoint_xfer_int(const struct usb_endpoint_descriptor *epd)
+static inline int usb_endpoint_xfer_int(
+ const struct usb_endpoint_descriptor *epd)
{
return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_INT);
* Returns true if the endpoint is of type isochronous, otherwise it returns
* false.
*/
-static inline int usb_endpoint_xfer_isoc(const struct usb_endpoint_descriptor *epd)
+static inline int usb_endpoint_xfer_isoc(
+ const struct usb_endpoint_descriptor *epd)
{
return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_ISOC);
* Returns true if the endpoint has bulk transfer type and IN direction,
* otherwise it returns false.
*/
-static inline int usb_endpoint_is_bulk_in(const struct usb_endpoint_descriptor *epd)
+static inline int usb_endpoint_is_bulk_in(
+ const struct usb_endpoint_descriptor *epd)
{
return (usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_in(epd));
}
* Returns true if the endpoint has bulk transfer type and OUT direction,
* otherwise it returns false.
*/
-static inline int usb_endpoint_is_bulk_out(const struct usb_endpoint_descriptor *epd)
+static inline int usb_endpoint_is_bulk_out(
+ const struct usb_endpoint_descriptor *epd)
{
return (usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_out(epd));
}
* Returns true if the endpoint has interrupt transfer type and IN direction,
* otherwise it returns false.
*/
-static inline int usb_endpoint_is_int_in(const struct usb_endpoint_descriptor *epd)
+static inline int usb_endpoint_is_int_in(
+ const struct usb_endpoint_descriptor *epd)
{
return (usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd));
}
* Returns true if the endpoint has interrupt transfer type and OUT direction,
* otherwise it returns false.
*/
-static inline int usb_endpoint_is_int_out(const struct usb_endpoint_descriptor *epd)
+static inline int usb_endpoint_is_int_out(
+ const struct usb_endpoint_descriptor *epd)
{
return (usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd));
}
* Returns true if the endpoint has isochronous transfer type and IN direction,
* otherwise it returns false.
*/
-static inline int usb_endpoint_is_isoc_in(const struct usb_endpoint_descriptor *epd)
+static inline int usb_endpoint_is_isoc_in(
+ const struct usb_endpoint_descriptor *epd)
{
return (usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_in(epd));
}
* Returns true if the endpoint has isochronous transfer type and OUT direction,
* otherwise it returns false.
*/
-static inline int usb_endpoint_is_isoc_out(const struct usb_endpoint_descriptor *epd)
+static inline int usb_endpoint_is_isoc_out(
+ const struct usb_endpoint_descriptor *epd)
{
return (usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_out(epd));
}
* specific device.
*/
#define USB_DEVICE(vend,prod) \
- .match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = (vend), \
- .idProduct = (prod)
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE, \
+ .idVendor = (vend), \
+ .idProduct = (prod)
/**
* USB_DEVICE_VER - macro used to describe a specific usb device with a
* version range
* This macro is used to create a struct usb_device_id that matches a
* specific device, with a version range.
*/
-#define USB_DEVICE_VER(vend,prod,lo,hi) \
+#define USB_DEVICE_VER(vend, prod, lo, hi) \
.match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION, \
- .idVendor = (vend), .idProduct = (prod), \
- .bcdDevice_lo = (lo), .bcdDevice_hi = (hi)
+ .idVendor = (vend), \
+ .idProduct = (prod), \
+ .bcdDevice_lo = (lo), \
+ .bcdDevice_hi = (hi)
+
+/**
+ * USB_DEVICE_INTERFACE_PROTOCOL - macro used to describe a usb
+ * device with a specific interface protocol
+ * @vend: the 16 bit USB Vendor ID
+ * @prod: the 16 bit USB Product ID
+ * @pr: bInterfaceProtocol value
+ *
+ * This macro is used to create a struct usb_device_id that matches a
+ * specific interface protocol of devices.
+ */
+#define USB_DEVICE_INTERFACE_PROTOCOL(vend, prod, pr) \
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
+ USB_DEVICE_ID_MATCH_INT_PROTOCOL, \
+ .idVendor = (vend), \
+ .idProduct = (prod), \
+ .bInterfaceProtocol = (pr)
/**
* USB_DEVICE_INFO - macro used to describe a class of usb devices
* This macro is used to create a struct usb_device_id that matches a
* specific class of devices.
*/
-#define USB_DEVICE_INFO(cl,sc,pr) \
- .match_flags = USB_DEVICE_ID_MATCH_DEV_INFO, .bDeviceClass = (cl), \
- .bDeviceSubClass = (sc), .bDeviceProtocol = (pr)
+#define USB_DEVICE_INFO(cl, sc, pr) \
+ .match_flags = USB_DEVICE_ID_MATCH_DEV_INFO, \
+ .bDeviceClass = (cl), \
+ .bDeviceSubClass = (sc), \
+ .bDeviceProtocol = (pr)
/**
- * USB_INTERFACE_INFO - macro used to describe a class of usb interfaces
+ * USB_INTERFACE_INFO - macro used to describe a class of usb interfaces
* @cl: bInterfaceClass value
* @sc: bInterfaceSubClass value
* @pr: bInterfaceProtocol value
* This macro is used to create a struct usb_device_id that matches a
* specific class of interfaces.
*/
-#define USB_INTERFACE_INFO(cl,sc,pr) \
- .match_flags = USB_DEVICE_ID_MATCH_INT_INFO, .bInterfaceClass = (cl), \
- .bInterfaceSubClass = (sc), .bInterfaceProtocol = (pr)
+#define USB_INTERFACE_INFO(cl, sc, pr) \
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO, \
+ .bInterfaceClass = (cl), \
+ .bInterfaceSubClass = (sc), \
+ .bInterfaceProtocol = (pr)
+
+/**
+ * USB_DEVICE_AND_INTERFACE_INFO - macro used to describe a specific usb device
+ * with a class of usb interfaces
+ * @vend: the 16 bit USB Vendor ID
+ * @prod: the 16 bit USB Product ID
+ * @cl: bInterfaceClass value
+ * @sc: bInterfaceSubClass value
+ * @pr: bInterfaceProtocol value
+ *
+ * This macro is used to create a struct usb_device_id that matches a
+ * specific device with a specific class of interfaces.
+ *
+ * This is especially useful when explicitly matching devices that have
+ * vendor specific bDeviceClass values, but standards-compliant interfaces.
+ */
+#define USB_DEVICE_AND_INTERFACE_INFO(vend, prod, cl, sc, pr) \
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO \
+ | USB_DEVICE_ID_MATCH_DEVICE, \
+ .idVendor = (vend), \
+ .idProduct = (prod), \
+ .bInterfaceClass = (cl), \
+ .bInterfaceSubClass = (sc), \
+ .bInterfaceProtocol = (pr)
/* ----------------------------------------------------------------------- */
* do (or don't) show up otherwise in the filesystem.
* @suspend: Called when the device is going to be suspended by the system.
* @resume: Called when the device is being resumed by the system.
+ * @reset_resume: Called when the suspended device has been reset instead
+ * of being resumed.
* @pre_reset: Called by usb_reset_composite_device() when the device
* is about to be reset.
* @post_reset: Called by usb_reset_composite_device() after the device
- * has been reset.
+ * has been reset, or in lieu of @resume following a reset-resume
+ * (i.e., the device is reset instead of being resumed, as might
+ * happen if power was lost). The second argument tells which is
+ * the reason.
* @id_table: USB drivers use ID table to support hotplugging.
* Export this with MODULE_DEVICE_TABLE(usb,...). This must be set
* or your driver's probe function will never get called.
int (*suspend) (struct usb_interface *intf, pm_message_t message);
int (*resume) (struct usb_interface *intf);
+ int (*reset_resume)(struct usb_interface *intf);
- void (*pre_reset) (struct usb_interface *intf);
- void (*post_reset) (struct usb_interface *intf);
+ int (*pre_reset)(struct usb_interface *intf);
+ int (*post_reset)(struct usb_interface *intf);
const struct usb_device_id *id_table;
/*
* urb->transfer_flags:
+ *
+ * Note: URB_DIR_IN/OUT is automatically set in usb_submit_urb().
*/
#define URB_SHORT_NOT_OK 0x0001 /* report short reads as errors */
#define URB_ISO_ASAP 0x0002 /* iso-only, urb->start_frame
#define URB_ZERO_PACKET 0x0040 /* Finish bulk OUT with short packet */
#define URB_NO_INTERRUPT 0x0080 /* HINT: no non-error interrupt
* needed */
+#define URB_FREE_BUFFER 0x0100 /* Free transfer buffer with the URB */
+
+#define URB_DIR_IN 0x0200 /* Transfer from device to host */
+#define URB_DIR_OUT 0
+#define URB_DIR_MASK URB_DIR_IN
struct usb_iso_packet_descriptor {
unsigned int offset;
struct urb;
+struct usb_anchor {
+ struct list_head urb_list;
+ wait_queue_head_t wait;
+ spinlock_t lock;
+};
+
+static inline void init_usb_anchor(struct usb_anchor *anchor)
+{
+ INIT_LIST_HEAD(&anchor->urb_list);
+ init_waitqueue_head(&anchor->wait);
+ spin_lock_init(&anchor->lock);
+}
+
typedef void (*usb_complete_t)(struct urb *);
/**
* struct urb - USB Request Block
* @urb_list: For use by current owner of the URB.
+ * @anchor_list: membership in the list of an anchor
+ * @anchor: to anchor URBs to a common mooring
+ * @ep: Points to the endpoint's data structure. Will eventually
+ * replace @pipe.
* @pipe: Holds endpoint number, direction, type, and more.
* Create these values with the eight macros available;
* usb_{snd,rcv}TYPEpipe(dev,endpoint), where the TYPE is "ctrl"
* transferred. It will normally be the same as requested, unless
* either an error was reported or a short read was performed.
* The URB_SHORT_NOT_OK transfer flag may be used to make such
- * short reads be reported as errors.
+ * short reads be reported as errors.
* @setup_packet: Only used for control transfers, this points to eight bytes
* of setup data. Control transfers always start by sending this data
* to the device. Then transfer_buffer is read or written, if needed.
* @complete: Completion handler. This URB is passed as the parameter to the
* completion function. The completion function may then do what
* it likes with the URB, including resubmitting or freeing it.
- * @iso_frame_desc: Used to provide arrays of ISO transfer buffers and to
+ * @iso_frame_desc: Used to provide arrays of ISO transfer buffers and to
* collect the transfer status for each buffer.
*
* This structure identifies USB transfer requests. URBs must be allocated by
* when the urb is owned by the hcd, that is, since the call to
* usb_submit_urb() till the entry into the completion routine.
*/
-struct urb
-{
+struct urb {
/* private: usb core and host controller only fields in the urb */
struct kref kref; /* reference count of the URB */
- spinlock_t lock; /* lock for the URB */
void *hcpriv; /* private data for host controller */
atomic_t use_count; /* concurrent submissions counter */
u8 reject; /* submissions will fail */
+ int unlinked; /* unlink error code */
/* public: documented fields in the urb that can be used by drivers */
struct list_head urb_list; /* list head for use by the urb's
* current owner */
+ struct list_head anchor_list; /* the URB may be anchored */
+ struct usb_anchor *anchor;
struct usb_device *dev; /* (in) pointer to associated device */
+ struct usb_host_endpoint *ep; /* (internal) pointer to endpoint */
unsigned int pipe; /* (in) pipe information */
int status; /* (return) non-ISO status */
unsigned int transfer_flags; /* (in) URB_SHORT_NOT_OK | ...*/
* Initializes a control urb with the proper information needed to submit
* it to a device.
*/
-static inline void usb_fill_control_urb (struct urb *urb,
- struct usb_device *dev,
- unsigned int pipe,
- unsigned char *setup_packet,
- void *transfer_buffer,
- int buffer_length,
- usb_complete_t complete_fn,
- void *context)
+static inline void usb_fill_control_urb(struct urb *urb,
+ struct usb_device *dev,
+ unsigned int pipe,
+ unsigned char *setup_packet,
+ void *transfer_buffer,
+ int buffer_length,
+ usb_complete_t complete_fn,
+ void *context)
{
- spin_lock_init(&urb->lock);
urb->dev = dev;
urb->pipe = pipe;
urb->setup_packet = setup_packet;
* Initializes a bulk urb with the proper information needed to submit it
* to a device.
*/
-static inline void usb_fill_bulk_urb (struct urb *urb,
- struct usb_device *dev,
- unsigned int pipe,
- void *transfer_buffer,
- int buffer_length,
- usb_complete_t complete_fn,
- void *context)
+static inline void usb_fill_bulk_urb(struct urb *urb,
+ struct usb_device *dev,
+ unsigned int pipe,
+ void *transfer_buffer,
+ int buffer_length,
+ usb_complete_t complete_fn,
+ void *context)
{
- spin_lock_init(&urb->lock);
urb->dev = dev;
urb->pipe = pipe;
urb->transfer_buffer = transfer_buffer;
* the endpoint interval, and express polling intervals in microframes
* (eight per millisecond) rather than in frames (one per millisecond).
*/
-static inline void usb_fill_int_urb (struct urb *urb,
- struct usb_device *dev,
- unsigned int pipe,
- void *transfer_buffer,
- int buffer_length,
- usb_complete_t complete_fn,
- void *context,
- int interval)
+static inline void usb_fill_int_urb(struct urb *urb,
+ struct usb_device *dev,
+ unsigned int pipe,
+ void *transfer_buffer,
+ int buffer_length,
+ usb_complete_t complete_fn,
+ void *context,
+ int interval)
{
- spin_lock_init(&urb->lock);
urb->dev = dev;
urb->pipe = pipe;
urb->transfer_buffer = transfer_buffer;
extern int usb_submit_urb(struct urb *urb, gfp_t mem_flags);
extern int usb_unlink_urb(struct urb *urb);
extern void usb_kill_urb(struct urb *urb);
+extern void usb_kill_anchored_urbs(struct usb_anchor *anchor);
+extern void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor);
+extern void usb_unanchor_urb(struct urb *urb);
+extern int usb_wait_anchor_empty_timeout(struct usb_anchor *anchor,
+ unsigned int timeout);
+
+/**
+ * usb_urb_dir_in - check if an URB describes an IN transfer
+ * @urb: URB to be checked
+ *
+ * Returns 1 if @urb describes an IN transfer (device-to-host),
+ * otherwise 0.
+ */
+static inline int usb_urb_dir_in(struct urb *urb)
+{
+ return (urb->transfer_flags & URB_DIR_MASK) == URB_DIR_IN;
+}
+
+/**
+ * usb_urb_dir_out - check if an URB describes an OUT transfer
+ * @urb: URB to be checked
+ *
+ * Returns 1 if @urb describes an OUT transfer (host-to-device),
+ * otherwise 0.
+ */
+static inline int usb_urb_dir_out(struct urb *urb)
+{
+ return (urb->transfer_flags & URB_DIR_MASK) == URB_DIR_OUT;
+}
-void *usb_buffer_alloc (struct usb_device *dev, size_t size,
+void *usb_buffer_alloc(struct usb_device *dev, size_t size,
gfp_t mem_flags, dma_addr_t *dma);
-void usb_buffer_free (struct usb_device *dev, size_t size,
+void usb_buffer_free(struct usb_device *dev, size_t size,
void *addr, dma_addr_t dma);
#if 0
-struct urb *usb_buffer_map (struct urb *urb);
-void usb_buffer_dmasync (struct urb *urb);
-void usb_buffer_unmap (struct urb *urb);
+struct urb *usb_buffer_map(struct urb *urb);
+void usb_buffer_dmasync(struct urb *urb);
+void usb_buffer_unmap(struct urb *urb);
#endif
struct scatterlist;
-int usb_buffer_map_sg(const struct usb_device *dev, unsigned pipe,
+int usb_buffer_map_sg(const struct usb_device *dev, int is_in,
struct scatterlist *sg, int nents);
#if 0
-void usb_buffer_dmasync_sg(const struct usb_device *dev, unsigned pipe,
+void usb_buffer_dmasync_sg(const struct usb_device *dev, int is_in,
struct scatterlist *sg, int n_hw_ents);
#endif
-void usb_buffer_unmap_sg(const struct usb_device *dev, unsigned pipe,
+void usb_buffer_unmap_sg(const struct usb_device *dev, int is_in,
struct scatterlist *sg, int n_hw_ents);
/*-------------------------------------------------------------------*
int status;
size_t bytes;
- /*
+ /*
* members below are private: to usbcore,
* and are not provided for driver access!
*/
struct completion complete;
};
-int usb_sg_init (
+int usb_sg_init(
struct usb_sg_request *io,
struct usb_device *dev,
- unsigned pipe,
+ unsigned pipe,
unsigned period,
struct scatterlist *sg,
int nents,
size_t length,
gfp_t mem_flags
);
-void usb_sg_cancel (struct usb_sg_request *io);
-void usb_sg_wait (struct usb_sg_request *io);
+void usb_sg_cancel(struct usb_sg_request *io);
+void usb_sg_wait(struct usb_sg_request *io);
/* ----------------------------------------------------------------------- */
/* Create various pipes... */
#define usb_sndctrlpipe(dev,endpoint) \
- ((PIPE_CONTROL << 30) | __create_pipe(dev,endpoint))
+ ((PIPE_CONTROL << 30) | __create_pipe(dev, endpoint))
#define usb_rcvctrlpipe(dev,endpoint) \
- ((PIPE_CONTROL << 30) | __create_pipe(dev,endpoint) | USB_DIR_IN)
+ ((PIPE_CONTROL << 30) | __create_pipe(dev, endpoint) | USB_DIR_IN)
#define usb_sndisocpipe(dev,endpoint) \
- ((PIPE_ISOCHRONOUS << 30) | __create_pipe(dev,endpoint))
+ ((PIPE_ISOCHRONOUS << 30) | __create_pipe(dev, endpoint))
#define usb_rcvisocpipe(dev,endpoint) \
- ((PIPE_ISOCHRONOUS << 30) | __create_pipe(dev,endpoint) | USB_DIR_IN)
+ ((PIPE_ISOCHRONOUS << 30) | __create_pipe(dev, endpoint) | USB_DIR_IN)
#define usb_sndbulkpipe(dev,endpoint) \
- ((PIPE_BULK << 30) | __create_pipe(dev,endpoint))
+ ((PIPE_BULK << 30) | __create_pipe(dev, endpoint))
#define usb_rcvbulkpipe(dev,endpoint) \
- ((PIPE_BULK << 30) | __create_pipe(dev,endpoint) | USB_DIR_IN)
+ ((PIPE_BULK << 30) | __create_pipe(dev, endpoint) | USB_DIR_IN)
#define usb_sndintpipe(dev,endpoint) \
- ((PIPE_INTERRUPT << 30) | __create_pipe(dev,endpoint))
+ ((PIPE_INTERRUPT << 30) | __create_pipe(dev, endpoint))
#define usb_rcvintpipe(dev,endpoint) \
- ((PIPE_INTERRUPT << 30) | __create_pipe(dev,endpoint) | USB_DIR_IN)
+ ((PIPE_INTERRUPT << 30) | __create_pipe(dev, endpoint) | USB_DIR_IN)
/*-------------------------------------------------------------------------*/
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff