Lines Matching refs:urb
17 #define to_urb(d) container_of(d, struct urb, kref)
22 struct urb *urb = to_urb(kref); in urb_destroy() local
24 if (urb->transfer_flags & URB_FREE_BUFFER) in urb_destroy()
25 kfree(urb->transfer_buffer); in urb_destroy()
27 kfree(urb); in urb_destroy()
44 void usb_init_urb(struct urb *urb) in usb_init_urb() argument
46 if (urb) { in usb_init_urb()
47 memset(urb, 0, sizeof(*urb)); in usb_init_urb()
48 kref_init(&urb->kref); in usb_init_urb()
49 INIT_LIST_HEAD(&urb->urb_list); in usb_init_urb()
50 INIT_LIST_HEAD(&urb->anchor_list); in usb_init_urb()
71 struct urb *usb_alloc_urb(int iso_packets, gfp_t mem_flags) in usb_alloc_urb()
73 struct urb *urb; in usb_alloc_urb() local
75 urb = kmalloc(struct_size(urb, iso_frame_desc, iso_packets), in usb_alloc_urb()
77 if (!urb) in usb_alloc_urb()
79 usb_init_urb(urb); in usb_alloc_urb()
80 return urb; in usb_alloc_urb()
94 void usb_free_urb(struct urb *urb) in usb_free_urb() argument
96 if (urb) in usb_free_urb()
97 kref_put(&urb->kref, urb_destroy); in usb_free_urb()
111 struct urb *usb_get_urb(struct urb *urb) in usb_get_urb() argument
113 if (urb) in usb_get_urb()
114 kref_get(&urb->kref); in usb_get_urb()
115 return urb; in usb_get_urb()
127 void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor) in usb_anchor_urb() argument
132 usb_get_urb(urb); in usb_anchor_urb()
133 list_add_tail(&urb->anchor_list, &anchor->urb_list); in usb_anchor_urb()
134 urb->anchor = anchor; in usb_anchor_urb()
137 atomic_inc(&urb->reject); in usb_anchor_urb()
150 static void __usb_unanchor_urb(struct urb *urb, struct usb_anchor *anchor) in __usb_unanchor_urb() argument
152 urb->anchor = NULL; in __usb_unanchor_urb()
153 list_del(&urb->anchor_list); in __usb_unanchor_urb()
154 usb_put_urb(urb); in __usb_unanchor_urb()
165 void usb_unanchor_urb(struct urb *urb) in usb_unanchor_urb() argument
170 if (!urb) in usb_unanchor_urb()
173 anchor = urb->anchor; in usb_unanchor_urb()
183 if (likely(anchor == urb->anchor)) in usb_unanchor_urb()
184 __usb_unanchor_urb(urb, anchor); in usb_unanchor_urb()
225 int usb_urb_ep_type_check(const struct urb *urb) in usb_urb_ep_type_check() argument
227 return usb_pipe_type_check(urb->dev, urb->pipe); in usb_urb_ep_type_check()
368 int usb_submit_urb(struct urb *urb, gfp_t mem_flags) in usb_submit_urb() argument
376 if (!urb || !urb->complete) in usb_submit_urb()
378 if (urb->hcpriv) { in usb_submit_urb()
379 WARN_ONCE(1, "URB %pK submitted while active\n", urb); in usb_submit_urb()
383 dev = urb->dev; in usb_submit_urb()
391 ep = usb_pipe_endpoint(dev, urb->pipe); in usb_submit_urb()
395 urb->ep = ep; in usb_submit_urb()
396 urb->status = -EINPROGRESS; in usb_submit_urb()
397 urb->actual_length = 0; in usb_submit_urb()
405 (struct usb_ctrlrequest *) urb->setup_packet; in usb_submit_urb()
411 dev_WARN_ONCE(&dev->dev, (usb_pipeout(urb->pipe) != is_out), in usb_submit_urb()
413 urb->pipe, setup->bRequestType); in usb_submit_urb()
414 if (le16_to_cpu(setup->wLength) != urb->transfer_buffer_length) { in usb_submit_urb()
417 urb->transfer_buffer_length); in usb_submit_urb()
425 urb->transfer_flags &= ~(URB_DIR_MASK | URB_DMA_MAP_SINGLE | in usb_submit_urb()
429 urb->transfer_flags |= (is_out ? URB_DIR_OUT : URB_DIR_IN); in usb_submit_urb()
430 kmsan_handle_urb(urb, is_out); in usb_submit_urb()
474 if (urb->number_of_packets <= 0) in usb_submit_urb()
476 for (n = 0; n < urb->number_of_packets; n++) { in usb_submit_urb()
477 len = urb->iso_frame_desc[n].length; in usb_submit_urb()
480 urb->iso_frame_desc[n].status = -EXDEV; in usb_submit_urb()
481 urb->iso_frame_desc[n].actual_length = 0; in usb_submit_urb()
483 } else if (urb->num_sgs && !urb->dev->bus->no_sg_constraint) { in usb_submit_urb()
487 for_each_sg(urb->sg, sg, urb->num_sgs - 1, i) in usb_submit_urb()
493 if (urb->transfer_buffer_length > INT_MAX) in usb_submit_urb()
502 if (usb_pipe_type_check(urb->dev, urb->pipe)) in usb_submit_urb()
504 usb_pipetype(urb->pipe), pipetypes[xfertype]); in usb_submit_urb()
523 allowed &= urb->transfer_flags; in usb_submit_urb()
526 if (allowed != urb->transfer_flags) in usb_submit_urb()
528 urb->transfer_flags, allowed); in usb_submit_urb()
542 if (urb->interval <= 0) in usb_submit_urb()
550 if (urb->interval > (1 << 15)) in usb_submit_urb()
556 if (urb->interval > (1024 * 8)) in usb_submit_urb()
557 urb->interval = 1024 * 8; in usb_submit_urb()
563 if (urb->interval > 255) in usb_submit_urb()
568 if (urb->interval > 1024) in usb_submit_urb()
569 urb->interval = 1024; in usb_submit_urb()
578 urb->interval = min(max, 1 << ilog2(urb->interval)); in usb_submit_urb()
581 return usb_hcd_submit_urb(urb, mem_flags); in usb_submit_urb()
660 int usb_unlink_urb(struct urb *urb) in usb_unlink_urb() argument
662 if (!urb) in usb_unlink_urb()
664 if (!urb->dev) in usb_unlink_urb()
666 if (!urb->ep) in usb_unlink_urb()
668 return usb_hcd_unlink_urb(urb, -ECONNRESET); in usb_unlink_urb()
699 void usb_kill_urb(struct urb *urb) in usb_kill_urb() argument
702 if (!(urb && urb->dev && urb->ep)) in usb_kill_urb()
704 atomic_inc(&urb->reject); in usb_kill_urb()
712 usb_hcd_unlink_urb(urb, -ENOENT); in usb_kill_urb()
713 wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0); in usb_kill_urb()
715 atomic_dec(&urb->reject); in usb_kill_urb()
746 void usb_poison_urb(struct urb *urb) in usb_poison_urb() argument
749 if (!urb) in usb_poison_urb()
751 atomic_inc(&urb->reject); in usb_poison_urb()
759 if (!urb->dev || !urb->ep) in usb_poison_urb()
762 usb_hcd_unlink_urb(urb, -ENOENT); in usb_poison_urb()
763 wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0); in usb_poison_urb()
767 void usb_unpoison_urb(struct urb *urb) in usb_unpoison_urb() argument
769 if (!urb) in usb_unpoison_urb()
772 atomic_dec(&urb->reject); in usb_unpoison_urb()
788 void usb_block_urb(struct urb *urb) in usb_block_urb() argument
790 if (!urb) in usb_block_urb()
793 atomic_inc(&urb->reject); in usb_block_urb()
810 struct urb *victim; in usb_kill_anchored_urbs()
817 struct urb, anchor_list); in usb_kill_anchored_urbs()
848 struct urb *victim; in usb_poison_anchored_urbs()
856 struct urb, anchor_list); in usb_poison_anchored_urbs()
883 struct urb *lazarus; in usb_unpoison_anchored_urbs()
907 struct urb *victim; in usb_unlink_anchored_urbs()
978 struct urb *usb_get_from_anchor(struct usb_anchor *anchor) in usb_get_from_anchor()
980 struct urb *victim; in usb_get_from_anchor()
985 victim = list_entry(anchor->urb_list.next, struct urb, in usb_get_from_anchor()
1007 struct urb *victim; in usb_scuttle_anchored_urbs()
1015 struct urb, anchor_list); in usb_scuttle_anchored_urbs()