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USB: xhci: Allocate and address USB devices

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xHCI needs to get a "Slot ID" from the host controller and allocate other
data structures for every USB device.  Make usb_alloc_dev() and
usb_release_dev() allocate and free these device structures.  After
setting up the xHC device structures, usb_alloc_dev() must wait for the
hardware to respond to an Enable Slot command.  usb_alloc_dev() fires off
a Disable Slot command and does not wait for it to complete.

When the USB core wants to choose an address for the device, the xHCI
driver must issue a Set Address command and wait for an event for that
command.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Sarah Sharp
2009-04-27 19:57:38 -07:00
committed by Greg Kroah-Hartman
parent c6515272b8
commit 3ffbba9511
6 changed files with 590 additions and 29 deletions
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7
drivers/usb/host/xhci-pci.c
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@@ -108,6 +108,13 @@ static const struct hc_driver xhci_pci_hc_driver = {
.stop = xhci_stop,
.shutdown = xhci_shutdown,
/*
* managing i/o requests and associated device resources
*/
.alloc_dev = xhci_alloc_dev,
.free_dev = xhci_free_dev,
.address_device = xhci_address_device,
/*
* scheduling support
*/