Messages in this thread Patch in this message | | | Date | Thu, 15 Jun 2006 13:00:26 -0700 | From | Randy Dunlap <> | Subject | [Ubuntu PATCH] bluetooth/hci_usb: Fix failures for suspend/resume |
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[UBUNTU:bluetooth] Fix failures for suspend/resume
http://www.kernel.org/git/?p=linux/kernel/git/bcollins/ubuntu-dapper.git;a=commitdiff;h=58db2683478e24009dbae33ea76beafe47b356bb
Plus whitespace cleanups by Randy Dunlap.
Signed-Off-By: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Ben Collins <bcollins@ubuntu.com> --- drivers/bluetooth/hci_usb.c | 57 ++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 57 insertions(+)
--- linux-2617-rc6g7.orig/drivers/bluetooth/hci_usb.c +++ linux-2617-rc6g7/drivers/bluetooth/hci_usb.c @@ -1043,9 +1043,66 @@ static void hci_usb_disconnect(struct us hci_free_dev(hdev); } +static int hci_usb_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct hci_usb *husb = usb_get_intfdata(intf); + int i; + unsigned long flags; + struct list_head killed; + + if (!husb || intf == husb->isoc_iface) + return 0; + + INIT_LIST_HEAD(&killed); + + for (i = 0; i < 4; i++) { + struct _urb_queue *q = &husb->pending_q[i]; + struct _urb *_urb, *_tmp; + while ((_urb = _urb_dequeue(q))) { + /* reset queue since _urb_dequeue sets it to NULL */ + _urb->queue = q; + usb_kill_urb(&_urb->urb); + list_add(&_urb->list, &killed); + } + spin_lock_irqsave(&q->lock, flags); + list_for_each_entry_safe(_urb, _tmp, &killed, list) { + list_move_tail(&_urb->list, &q->head); + } + spin_unlock_irqrestore(&q->lock, flags); + } + return 0; +} + +static int hci_usb_resume(struct usb_interface *intf) +{ + struct hci_usb *husb = usb_get_intfdata(intf); + int i, err = 0; + unsigned long flags; + + if (!husb || intf == husb->isoc_iface) + return 0; + + for (i = 0; i < 4; i++) { + struct _urb_queue *q = &husb->pending_q[i]; + struct _urb *_urb; + spin_lock_irqsave(&q->lock, flags); + list_for_each_entry(_urb, &q->head, list) { + err = usb_submit_urb(&_urb->urb, GFP_ATOMIC); + if (err) + break; + } + spin_unlock_irqrestore(&q->lock, flags); + if (err) + return -EIO; + } + return 0; +} + static struct usb_driver hci_usb_driver = { .name = "hci_usb", .probe = hci_usb_probe, + .suspend = hci_usb_suspend, + .resume = hci_usb_resume, .disconnect = hci_usb_disconnect, .id_table = bluetooth_ids, };
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