static int perform_sglist(
struct usbtest_dev *tdev,
unsigned iterations,
int pipe,
struct usb_sg_request *req,
struct scatterlist *sg,
int nents
)
{
struct usb_device *udev = testdev_to_usbdev(tdev);
int retval = 0;
while (retval == 0 && iterations-- > 0) {
retval = usb_sg_init(req, udev, pipe,
(udev->speed == USB_SPEED_HIGH)
? (INTERRUPT_RATE << 3)
: INTERRUPT_RATE,
sg, nents, 0, GFP_KERNEL);
if (retval)
break;
usb_sg_wait(req);
retval = req->status;
}
if (retval)
ERROR(tdev, "perform_sglist failed, "
"iterations left %d, status %d\n",
iterations, retval);
return retval;
}
static int perform_sglist(
struct usbtest_dev *tdev,
unsigned iterations,
int pipe,
struct usb_sg_request *req,
struct scatterlist *sg,
int nents
)
{
struct usb_device *udev = testdev_to_usbdev(tdev);
int retval = 0;
while (retval == 0 && iterations-- > 0) {
retval = usb_sg_init(req, udev, pipe,
(udev->speed == USB_SPEED_HIGH)
? (INTERRUPT_RATE << 3)
: INTERRUPT_RATE,
sg, nents, 0, GFP_KERNEL);
if (retval)
break;
usb_sg_wait(req);
retval = req->status;
/* FIXME check resulting data pattern */
/* FIXME if endpoint halted, clear halt (and log) */
}
/* FIXME for unlink or fault handling tests, don't report
* failure if retval is as we expected ...
*/
if (retval)
ERROR(tdev, "perform_sglist failed, "
"iterations left %d, status %d\n",
iterations, retval);
return retval;
}
static int
get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf)
{
int tmp;
struct usb_host_interface *alt;
struct usb_host_endpoint *in, *out;
struct usb_host_endpoint *iso_in, *iso_out;
struct usb_device *udev;
for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
unsigned ep;
in = out = NULL;
iso_in = iso_out = NULL;
alt = intf->altsetting + tmp;
/* take the first altsetting with in-bulk + out-bulk;
* ignore other endpoints and altsettings.
*/
for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
struct usb_host_endpoint *e;
e = alt->endpoint + ep;
switch (e->desc.bmAttributes) {
case USB_ENDPOINT_XFER_BULK:
break;
case USB_ENDPOINT_XFER_ISOC:
if (dev->info->iso)
goto try_iso;
/* FALLTHROUGH */
default:
continue;
}
if (usb_endpoint_dir_in(&e->desc)) {
if (!in)
in = e;
} else {
if (!out)
out = e;
}
continue;
try_iso:
if (usb_endpoint_dir_in(&e->desc)) {
if (!iso_in)
iso_in = e;
} else {
if (!iso_out)
iso_out = e;
}
}
if ((in && out) || iso_in || iso_out)
goto found;
}
return -EINVAL;
found:
udev = testdev_to_usbdev(dev);
if (alt->desc.bAlternateSetting != 0) {
tmp = usb_set_interface(udev,
alt->desc.bInterfaceNumber,
alt->desc.bAlternateSetting);
if (tmp < 0)
return tmp;
}
if (in) {
dev->in_pipe = usb_rcvbulkpipe(udev,
in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
dev->out_pipe = usb_sndbulkpipe(udev,
out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
}
if (iso_in) {
dev->iso_in = &iso_in->desc;
dev->in_iso_pipe = usb_rcvisocpipe(udev,
iso_in->desc.bEndpointAddress
& USB_ENDPOINT_NUMBER_MASK);
}
if (iso_out) {
dev->iso_out = &iso_out->desc;
dev->out_iso_pipe = usb_sndisocpipe(udev,
iso_out->desc.bEndpointAddress
& USB_ENDPOINT_NUMBER_MASK);
}
return 0;
}