Commit ffe95371 authored by Mathias Nyman's avatar Mathias Nyman Committed by Greg Kroah-Hartman
Browse files

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: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 32ce77d5

drivers/usb/core/hcd.c

+3 −0
Original line number Diff line number Diff line
@@ -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;

include/linux/usb/hcd.h

+1 −0
Original line number Diff line number Diff line
@@ -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 */

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