X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fusb.h;h=533c32374e01e58e36509a86695608060adf4761;hb=8b3b01c898a44c2fc7217eb579982b9d132113f5;hp=94bd38a6d947be480281f3a8e4de4edff7f03c84;hpb=a9deecba19b8f384d97f82c75379da48bccb2588;p=pandora-kernel.git

diff --git a/include/linux/usb.h b/include/linux/usb.h
index 94bd38a6d947..533c32374e01 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -403,6 +403,8 @@ struct usb_device {
 
 	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 */
 #endif
@@ -728,6 +730,22 @@ static inline int usb_endpoint_is_isoc_out(const struct usb_endpoint_descriptor
 	.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
  * @cl: bDeviceClass value
@@ -754,6 +772,28 @@ static inline int usb_endpoint_is_isoc_out(const struct usb_endpoint_descriptor
 	.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)
+
 /* ----------------------------------------------------------------------- */
 
 /* Stuff for dynamic usb ids */
@@ -800,10 +840,15 @@ struct usbdrv_wrap {
  *	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.
@@ -843,9 +888,10 @@ struct usb_driver {
 
 	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;
 
@@ -948,6 +994,7 @@ extern int usb_disabled(void);
 #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 */
 
 struct usb_iso_packet_descriptor {
 	unsigned int offset;
@@ -958,11 +1005,26 @@ struct usb_iso_packet_descriptor {
 
 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
  * @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"
@@ -1135,6 +1197,8 @@ struct urb
 	/* 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 by the driver */
+	struct usb_anchor *anchor;
 	struct usb_device *dev; 	/* (in) pointer to associated device */
 	unsigned int pipe;		/* (in) pipe information */
 	int status;			/* (return) non-ISO status */
@@ -1270,6 +1334,11 @@ extern struct urb *usb_get_urb(struct urb *urb);
 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);
 
 void *usb_buffer_alloc (struct usb_device *dev, size_t size,
 	gfp_t mem_flags, dma_addr_t *dma);