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authorSarah Sharp <sarah.a.sharp@linux.intel.com>2009-04-28 06:52:28 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2009-06-16 08:44:48 +0400
commit66d4eadd8d067269ea8fead1a50fe87c2979a80d (patch)
treeb0324868818058161e528bd194f6888456924fd4 /drivers/usb/core
parent74c6874199af98e602bb7c5fb1beb9cffda98729 (diff)
downloadlinux-66d4eadd8d067269ea8fead1a50fe87c2979a80d.tar.xz
USB: xhci: BIOS handoff and HW initialization.
Add PCI initialization code to take control of the xHCI host controller away from the BIOS, halt, and reset the host controller. The xHCI spec says that BIOSes must give up the host controller within 5 seconds. Add some host controller glue functions to handle hardware initialization and memory allocation for the host controller. The current xHCI prototypes use PCI interrupts, but the xHCI spec requires MSI-X interrupts. Add code to support MSI-X interrupts, but use the PCI interrupts for now. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core')
-rw-r--r--drivers/usb/core/hcd.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h
index 174170f14f06..7a47498b0aac 100644
--- a/drivers/usb/core/hcd.h
+++ b/drivers/usb/core/hcd.h
@@ -173,6 +173,7 @@ struct hc_driver {
#define HCD_LOCAL_MEM 0x0002 /* HC needs local memory */
#define HCD_USB11 0x0010 /* USB 1.1 */
#define HCD_USB2 0x0020 /* USB 2.0 */
+#define HCD_USB3 0x0040 /* USB 3.0 */
/* called to init HCD and root hub */
int (*reset) (struct usb_hcd *hcd);