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usb: usbtest: support container id descriptor test 

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@amd.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Huang Rui 2013-10-30 11:27:40 +08:00 committed by Greg Kroah-Hartman
parent b8fef79518
commit 8e29217f93
1 changed files with 27 additions and 0 deletions
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27
drivers/usb/misc/usbtest.c
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@ -657,6 +657,25 @@ static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf)
return 1;
}
static int is_good_con_id(struct usbtest_dev *tdev, u8 *buf)
{
struct usb_ss_container_id_descriptor *con_id;
con_id = (struct usb_ss_container_id_descriptor *) 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.
*
@ -810,6 +829,14 @@ static int ch9_postconfig(struct usbtest_dev *dev)
return -EDOM;
}
break;
case CONTAINER_ID_TYPE:
if (buf + USB_DT_USB_SS_CONTN_ID_SIZE >
dev->buf + total ||
!is_good_con_id(dev, buf)) {
dev_err(&iface->dev, "bogus container id descriptor\n");
return -EDOM;
}
break;
default:
break;
}