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usb: define HCD_USB31 speed option for hosts that support USB 3.1 features 

Hosts that support USB 3.1 Enhaned SuperSpeed can set their speed to
HCD_USB31 to let usb core and host drivers know that the controller
supports new USB 3.1 features.

make sure usb core handle HCD_USB31 hosts correctly, for now similar
to HCD_USB3.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Mathias Nyman 2015-10-01 18:40:37 +03:00 committed by Greg Kroah-Hartman
parent 2338b9e47f
commit 7117522520
2 changed files with 4 additions and 0 deletions
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3
drivers/usb/core/hcd.c
View File

@ -555,6 +555,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
switch (wValue & 0xff00) {
case USB_DT_DEVICE << 8:
switch (hcd->speed) {
case HCD_USB31:
case HCD_USB3:
bufp = usb3_rh_dev_descriptor;
break;
@ -576,6 +577,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
break;
case USB_DT_CONFIG << 8:
switch (hcd->speed) {
case HCD_USB31:
case HCD_USB3:
bufp = ss_rh_config_descriptor;
len = sizeof ss_rh_config_descriptor;
@ -2775,6 +2777,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
rhdev->speed = USB_SPEED_WIRELESS;
break;
case HCD_USB3:
case HCD_USB31:
rhdev->speed = USB_SPEED_SUPER;
break;
default:

1
include/linux/usb/hcd.h
View File

@ -250,6 +250,7 @@ struct hc_driver {
#define HCD_USB2 0x0020 /* USB 2.0 */
#define HCD_USB25 0x0030 /* Wireless USB 1.0 (USB 2.5)*/
#define HCD_USB3 0x0040 /* USB 3.0 */
#define HCD_USB31 0x0050 /* USB 3.1 */
#define HCD_MASK 0x0070
#define HCD_BH 0x0100 /* URB complete in BH context */