In Test 9 of usbtest module, it is used for performing chapter 9 tests N
times.
Container ID descriptor is one of the generic device-level capbility
descriptors which added in section 9.6.2.3 of USB 3.0 spec.
This patch adds to support getting Container ID descriptor test scenario
for USB 3.0.
Signed-off-by: Huang Rui <ray.huang@xxxxxxx>
---
drivers/usb/misc/usbtest.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 9b99a42..5904ab6 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -657,6 +657,25 @@ static int is_good_ss_cap(struct usbtest_dev *tdev)
return 1;
}
+static int is_good_con_id(struct usbtest_dev *tdev)
+{
+ struct usb_ss_container_id_descriptor *con_id;
+
+ con_id = (struct usb_ss_container_id_descriptor *) tdev->buf;
+
+ if (con_id->bLength != USB_DT_USB_SS_CONTN_ID_SIZE) {
+ ERROR(tdev, "bogus container id descriptor length\n");
+ return 0;
+ }
+
+ if (con_id->bReserved) { /* reserved == 0 */
+ ERROR(tdev, "reserved bits set\n");
+ return 0;
+ }
+
+ return 1;
+}
+
/* sanity test for standard requests working with usb_control_mesg() and some
* of the utility functions which use it.
*
@@ -797,6 +816,12 @@ static int ch9_postconfig(struct usbtest_dev *dev)
return -EDOM;
}
break;
+ case CONTAINER_ID_TYPE:
+ if (!is_good_con_id(dev)) {
+ dev_err(&iface->dev, "bogus container id descriptor\n");
+ return -EDOM;
+ }
+ break;
default:
break;
}
--
1.7.11.7
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