Lines Matching refs:urb
11 #define to_urb(d) container_of(d, struct urb, kref)
16 struct urb *urb = to_urb(kref); in urb_destroy() local
18 if (urb->transfer_flags & URB_FREE_BUFFER) in urb_destroy()
19 kfree(urb->transfer_buffer); in urb_destroy()
21 kfree(urb); in urb_destroy()
38 void usb_init_urb(struct urb *urb) in usb_init_urb() argument
40 if (urb) { in usb_init_urb()
41 memset(urb, 0, sizeof(*urb)); in usb_init_urb()
42 kref_init(&urb->kref); in usb_init_urb()
43 INIT_LIST_HEAD(&urb->anchor_list); in usb_init_urb()
64 struct urb *usb_alloc_urb(int iso_packets, gfp_t mem_flags) in usb_alloc_urb()
66 struct urb *urb; in usb_alloc_urb() local
68 urb = kmalloc(sizeof(struct urb) + in usb_alloc_urb()
71 if (!urb) { in usb_alloc_urb()
75 usb_init_urb(urb); in usb_alloc_urb()
76 return urb; in usb_alloc_urb()
90 void usb_free_urb(struct urb *urb) in usb_free_urb() argument
92 if (urb) in usb_free_urb()
93 kref_put(&urb->kref, urb_destroy); in usb_free_urb()
107 struct urb *usb_get_urb(struct urb *urb) in usb_get_urb() argument
109 if (urb) in usb_get_urb()
110 kref_get(&urb->kref); in usb_get_urb()
111 return urb; in usb_get_urb()
123 void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor) in usb_anchor_urb() argument
128 usb_get_urb(urb); in usb_anchor_urb()
129 list_add_tail(&urb->anchor_list, &anchor->urb_list); in usb_anchor_urb()
130 urb->anchor = anchor; in usb_anchor_urb()
133 atomic_inc(&urb->reject); in usb_anchor_urb()
146 static void __usb_unanchor_urb(struct urb *urb, struct usb_anchor *anchor) in __usb_unanchor_urb() argument
148 urb->anchor = NULL; in __usb_unanchor_urb()
149 list_del(&urb->anchor_list); in __usb_unanchor_urb()
150 usb_put_urb(urb); in __usb_unanchor_urb()
161 void usb_unanchor_urb(struct urb *urb) in usb_unanchor_urb() argument
166 if (!urb) in usb_unanchor_urb()
169 anchor = urb->anchor; in usb_unanchor_urb()
179 if (likely(anchor == urb->anchor)) in usb_unanchor_urb()
180 __usb_unanchor_urb(urb, anchor); in usb_unanchor_urb()
324 int usb_submit_urb(struct urb *urb, gfp_t mem_flags) in usb_submit_urb() argument
335 if (!urb || !urb->complete) in usb_submit_urb()
337 if (urb->hcpriv) { in usb_submit_urb()
338 WARN_ONCE(1, "URB %p submitted while active\n", urb); in usb_submit_urb()
342 dev = urb->dev; in usb_submit_urb()
350 ep = usb_pipe_endpoint(dev, urb->pipe); in usb_submit_urb()
354 urb->ep = ep; in usb_submit_urb()
355 urb->status = -EINPROGRESS; in usb_submit_urb()
356 urb->actual_length = 0; in usb_submit_urb()
364 (struct usb_ctrlrequest *) urb->setup_packet; in usb_submit_urb()
375 urb->transfer_flags &= ~(URB_DIR_MASK | URB_DMA_MAP_SINGLE | in usb_submit_urb()
379 urb->transfer_flags |= (is_out ? URB_DIR_OUT : URB_DIR_IN); in usb_submit_urb()
418 if (urb->number_of_packets <= 0) in usb_submit_urb()
420 for (n = 0; n < urb->number_of_packets; n++) { in usb_submit_urb()
421 len = urb->iso_frame_desc[n].length; in usb_submit_urb()
424 urb->iso_frame_desc[n].status = -EXDEV; in usb_submit_urb()
425 urb->iso_frame_desc[n].actual_length = 0; in usb_submit_urb()
427 } else if (urb->num_sgs && !urb->dev->bus->no_sg_constraint && in usb_submit_urb()
432 for_each_sg(urb->sg, sg, urb->num_sgs - 1, i) in usb_submit_urb()
438 if (urb->transfer_buffer_length > INT_MAX) in usb_submit_urb()
447 if (usb_pipetype(urb->pipe) != pipetypes[xfertype]) in usb_submit_urb()
449 usb_pipetype(urb->pipe), pipetypes[xfertype]); in usb_submit_urb()
471 allowed &= urb->transfer_flags; in usb_submit_urb()
474 if (allowed != urb->transfer_flags) in usb_submit_urb()
476 urb->transfer_flags, allowed); in usb_submit_urb()
492 if ((urb->interval < 6) in usb_submit_urb()
496 if (urb->interval <= 0) in usb_submit_urb()
504 if (urb->interval > (1 << 15)) in usb_submit_urb()
509 if (urb->interval > 16) in usb_submit_urb()
514 if (urb->interval > (1024 * 8)) in usb_submit_urb()
515 urb->interval = 1024 * 8; in usb_submit_urb()
521 if (urb->interval > 255) in usb_submit_urb()
526 if (urb->interval > 1024) in usb_submit_urb()
527 urb->interval = 1024; in usb_submit_urb()
537 urb->interval = min(max, 1 << ilog2(urb->interval)); in usb_submit_urb()
541 return usb_hcd_submit_urb(urb, mem_flags); in usb_submit_urb()
620 int usb_unlink_urb(struct urb *urb) in usb_unlink_urb() argument
622 if (!urb) in usb_unlink_urb()
624 if (!urb->dev) in usb_unlink_urb()
626 if (!urb->ep) in usb_unlink_urb()
628 return usb_hcd_unlink_urb(urb, -ECONNRESET); in usb_unlink_urb()
659 void usb_kill_urb(struct urb *urb) in usb_kill_urb() argument
662 if (!(urb && urb->dev && urb->ep)) in usb_kill_urb()
664 atomic_inc(&urb->reject); in usb_kill_urb()
666 usb_hcd_unlink_urb(urb, -ENOENT); in usb_kill_urb()
667 wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0); in usb_kill_urb()
669 atomic_dec(&urb->reject); in usb_kill_urb()
700 void usb_poison_urb(struct urb *urb) in usb_poison_urb() argument
703 if (!urb) in usb_poison_urb()
705 atomic_inc(&urb->reject); in usb_poison_urb()
707 if (!urb->dev || !urb->ep) in usb_poison_urb()
710 usb_hcd_unlink_urb(urb, -ENOENT); in usb_poison_urb()
711 wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0); in usb_poison_urb()
715 void usb_unpoison_urb(struct urb *urb) in usb_unpoison_urb() argument
717 if (!urb) in usb_unpoison_urb()
720 atomic_dec(&urb->reject); in usb_unpoison_urb()
736 void usb_block_urb(struct urb *urb) in usb_block_urb() argument
738 if (!urb) in usb_block_urb()
741 atomic_inc(&urb->reject); in usb_block_urb()
757 struct urb *victim; in usb_kill_anchored_urbs()
761 victim = list_entry(anchor->urb_list.prev, struct urb, in usb_kill_anchored_urbs()
789 struct urb *victim; in usb_poison_anchored_urbs()
794 victim = list_entry(anchor->urb_list.prev, struct urb, in usb_poison_anchored_urbs()
818 struct urb *lazarus; in usb_unpoison_anchored_urbs()
842 struct urb *victim; in usb_unlink_anchored_urbs()
913 struct urb *usb_get_from_anchor(struct usb_anchor *anchor) in usb_get_from_anchor()
915 struct urb *victim; in usb_get_from_anchor()
920 victim = list_entry(anchor->urb_list.next, struct urb, in usb_get_from_anchor()
942 struct urb *victim; in usb_scuttle_anchored_urbs()
947 victim = list_entry(anchor->urb_list.prev, struct urb, in usb_scuttle_anchored_urbs()