usb: usbtest: support superspeed device capbility descriptor test
In Test 9 of usbtest module, it is used for performing chapter 9 tests N times. SuperSpeed USB Device Capability descriptor is one of the generic device-level capbility descriptors which added in section 9.6.2.2 of USB 3.0 spec. This patch adds to support getting SuperSpeed USB Device Capability descriptor test scenario for USB 3.0. Signed-off-by: Huang Rui <ray.huang@amd.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Родитель
82f92672ac
Коммит
b8fef79518
|
@ -628,6 +628,35 @@ static int is_good_ext(struct usbtest_dev *tdev, u8 *buf)
|
||||||
return 1;
|
return 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf)
|
||||||
|
{
|
||||||
|
struct usb_ss_cap_descriptor *ss;
|
||||||
|
|
||||||
|
ss = (struct usb_ss_cap_descriptor *) buf;
|
||||||
|
|
||||||
|
if (ss->bLength != USB_DT_USB_SS_CAP_SIZE) {
|
||||||
|
ERROR(tdev, "bogus superspeed device capability descriptor length\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* only bit[1] of bmAttributes is used for LTM and others are
|
||||||
|
* reserved
|
||||||
|
*/
|
||||||
|
if (ss->bmAttributes & ~0x02) { /* reserved == 0 */
|
||||||
|
ERROR(tdev, "reserved bits set in bmAttributes\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* bits[0:3] of wSpeedSupported is used and others are reserved */
|
||||||
|
if (le16_to_cpu(ss->wSpeedSupported) & ~0x0f) { /* reserved == 0 */
|
||||||
|
ERROR(tdev, "reserved bits set in wSpeedSupported\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
/* sanity test for standard requests working with usb_control_mesg() and some
|
/* sanity test for standard requests working with usb_control_mesg() and some
|
||||||
* of the utility functions which use it.
|
* of the utility functions which use it.
|
||||||
*
|
*
|
||||||
|
@ -773,6 +802,14 @@ static int ch9_postconfig(struct usbtest_dev *dev)
|
||||||
return -EDOM;
|
return -EDOM;
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
|
case USB_SS_CAP_TYPE:
|
||||||
|
if (buf + USB_DT_USB_SS_CAP_SIZE >
|
||||||
|
dev->buf + total ||
|
||||||
|
!is_good_ss_cap(dev, buf)) {
|
||||||
|
dev_err(&iface->dev, "bogus superspeed device capability descriptor\n");
|
||||||
|
return -EDOM;
|
||||||
|
}
|
||||||
|
break;
|
||||||
default:
|
default:
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
|
Загрузка…
Ссылка в новой задаче