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usb: define HCD_USB32 speed option for hosts that support USB 3.2 dual-lane 

Hosts that support USB 3.2 Enhaned SuperSpeed can set their hcd speed
to HCD_USB32 to let usb core and host drivers know that the controller
supports new USB 3.2 dual-lane features.

make sure usb core handle HCD_USB32 hosts correctly, for now similar
to HCD_USB32.

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 2018-04-19 19:05:50 +03:00 committed by Greg Kroah-Hartman
parent 32ce77d52e
commit ffe95371d2
2 changed files with 4 additions and 0 deletions
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3
drivers/usb/core/hcd.c
View File

@ -567,6 +567,7 @@ 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_USB32:
case HCD_USB31:
bufp = usb31_rh_dev_descriptor;
break;
@ -591,6 +592,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
break;
case USB_DT_CONFIG << 8:
switch (hcd->speed) {
case HCD_USB32:
case HCD_USB31:
case HCD_USB3:
bufp = ss_rh_config_descriptor;
@ -2804,6 +2806,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
case HCD_USB3:
rhdev->speed = USB_SPEED_SUPER;
break;
case HCD_USB32:
case HCD_USB31:
rhdev->speed = USB_SPEED_SUPER_PLUS;
break;

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

@ -260,6 +260,7 @@ struct hc_driver {
#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_USB32 0x0060 /* USB 3.2 */
#define HCD_MASK 0x0070
#define HCD_BH 0x0100 /* URB complete in BH context */