20 static void complicated_callback(struct urb *urb);
232 static void simple_callback(struct urb *urb)  in simple_callback()  argument
234 	complete(urb->context);  in simple_callback()
237 static struct urb *usbtest_alloc_urb(  in usbtest_alloc_urb()
246 	struct urb		*urb;  in usbtest_alloc_urb()  local
248 	urb = usb_alloc_urb(0, GFP_KERNEL);  in usbtest_alloc_urb()
249 	if (!urb)  in usbtest_alloc_urb()
250 		return urb;  in usbtest_alloc_urb()
253 		usb_fill_int_urb(urb, udev, pipe, NULL, bytes, complete_fn,  in usbtest_alloc_urb()
256 		usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, complete_fn,  in usbtest_alloc_urb()
259 	urb->interval = (udev->speed == USB_SPEED_HIGH)  in usbtest_alloc_urb()
262 	urb->transfer_flags = transfer_flags;  in usbtest_alloc_urb()
264 		urb->transfer_flags |= URB_SHORT_NOT_OK;  in usbtest_alloc_urb()
266 	if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)  in usbtest_alloc_urb()
267 		urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset,  in usbtest_alloc_urb()
268 			GFP_KERNEL, &urb->transfer_dma);  in usbtest_alloc_urb()
270 		urb->transfer_buffer = kmalloc(bytes + offset, GFP_KERNEL);  in usbtest_alloc_urb()
272 	if (!urb->transfer_buffer) {  in usbtest_alloc_urb()
273 		usb_free_urb(urb);  in usbtest_alloc_urb()
280 		memset(urb->transfer_buffer, GUARD_BYTE, offset);  in usbtest_alloc_urb()
281 		urb->transfer_buffer += offset;  in usbtest_alloc_urb()
282 		if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)  in usbtest_alloc_urb()
283 			urb->transfer_dma += offset;  in usbtest_alloc_urb()
288 	memset(urb->transfer_buffer,  in usbtest_alloc_urb()
289 			usb_pipein(urb->pipe) ? GUARD_BYTE : 0,  in usbtest_alloc_urb()
291 	return urb;  in usbtest_alloc_urb()
294 static struct urb *simple_alloc_urb(  in simple_alloc_urb()
304 static struct urb *complicated_alloc_urb(  in complicated_alloc_urb()
327 static void simple_fill_buf(struct urb *urb)  in simple_fill_buf()  argument
330 	u8		*buf = urb->transfer_buffer;  in simple_fill_buf()
331 	unsigned	len = urb->transfer_buffer_length;  in simple_fill_buf()
341 		maxpacket = get_maxpacket(urb->dev, urb->pipe);  in simple_fill_buf()
353 static int check_guard_bytes(struct usbtest_dev *tdev, struct urb *urb)  in check_guard_bytes()  argument
355 	u8 *buf = urb->transfer_buffer;  in check_guard_bytes()
369 static int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)  in simple_check_buf()  argument
373 	u8		*buf = urb->transfer_buffer;  in simple_check_buf()
374 	unsigned	len = urb->actual_length;  in simple_check_buf()
375 	unsigned	maxpacket = get_maxpacket(urb->dev, urb->pipe);  in simple_check_buf()
377 	int ret = check_guard_bytes(tdev, urb);  in simple_check_buf()
408 static void simple_free_urb(struct urb *urb)  in simple_free_urb()  argument
410 	unsigned long offset = buffer_offset(urb->transfer_buffer);  in simple_free_urb()
412 	if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)  in simple_free_urb()
414 			urb->dev,  in simple_free_urb()
415 			urb->transfer_buffer_length + offset,  in simple_free_urb()
416 			urb->transfer_buffer - offset,  in simple_free_urb()
417 			urb->transfer_dma - offset);  in simple_free_urb()
419 		kfree(urb->transfer_buffer - offset);  in simple_free_urb()
420 	usb_free_urb(urb);  in simple_free_urb()
425 	struct urb		*urb,  in simple_io()  argument
432 	struct usb_device	*udev = urb->dev;  in simple_io()
433 	int			max = urb->transfer_buffer_length;  in simple_io()
438 	urb->context = &completion;  in simple_io()
441 		if (usb_pipeout(urb->pipe)) {  in simple_io()
442 			simple_fill_buf(urb);  in simple_io()
443 			urb->transfer_flags |= URB_ZERO_PACKET;  in simple_io()
445 		retval = usb_submit_urb(urb, GFP_KERNEL);  in simple_io()
451 			usb_kill_urb(urb);  in simple_io()
452 			retval = (urb->status == -ENOENT ?  in simple_io()
453 				  -ETIMEDOUT : urb->status);  in simple_io()
455 			retval = urb->status;  in simple_io()
458 		urb->dev = udev;  in simple_io()
459 		if (retval == 0 && usb_pipein(urb->pipe))  in simple_io()
460 			retval = simple_check_buf(tdev, urb);  in simple_io()
463 			int	len = urb->transfer_buffer_length;  in simple_io()
469 			urb->transfer_buffer_length = len;  in simple_io()
474 	urb->transfer_buffer_length = max;  in simple_io()
1034 	struct urb		**urb;  member
1047 static void ctrl_complete(struct urb *urb)  in ctrl_complete()  argument
1049 	struct ctrl_ctx		*ctx = urb->context;  in ctrl_complete()
1052 	int			status = urb->status;  in ctrl_complete()
1054 	reqp = (struct usb_ctrlrequest *)urb->setup_packet;  in ctrl_complete()
1108 					urb->actual_length,  in ctrl_complete()
1109 					urb->transfer_buffer_length);  in ctrl_complete()
1117 				struct urb *u = ctx->urb[  in ctrl_complete()
1121 				if (u == urb || !u->dev)  in ctrl_complete()
1142 		status = usb_submit_urb(urb, GFP_ATOMIC);  in ctrl_complete()
1147 			urb->dev = NULL;  in ctrl_complete()
1151 		urb->dev = NULL;  in ctrl_complete()
1163 	struct urb		**urb;  in test_ctrl_queue()  local
1183 	urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);  in test_ctrl_queue()
1184 	if (!urb)  in test_ctrl_queue()
1189 		struct urb		*u;  in test_ctrl_queue()
1328 		urb[i] = u = simple_alloc_urb(udev, pipe, len, 0);  in test_ctrl_queue()
1345 	context.urb = urb;  in test_ctrl_queue()
1348 		context.status = usb_submit_urb(urb[i], GFP_ATOMIC);  in test_ctrl_queue()
1367 		if (!urb[i])  in test_ctrl_queue()
1369 		urb[i]->dev = udev;  in test_ctrl_queue()
1370 		kfree(urb[i]->setup_packet);  in test_ctrl_queue()
1371 		simple_free_urb(urb[i]);  in test_ctrl_queue()
1373 	kfree(urb);  in test_ctrl_queue()
1381 static void unlink1_callback(struct urb *urb)  in unlink1_callback()  argument
1383 	int	status = urb->status;  in unlink1_callback()
1387 		status = usb_submit_urb(urb, GFP_ATOMIC);  in unlink1_callback()
1389 		urb->status = status;  in unlink1_callback()
1390 		complete(urb->context);  in unlink1_callback()
1396 	struct urb		*urb;  in unlink1()  local
1401 	urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size, 0);  in unlink1()
1402 	if (!urb)  in unlink1()
1404 	urb->context = &completion;  in unlink1()
1405 	urb->complete = unlink1_callback;  in unlink1()
1407 	if (usb_pipeout(urb->pipe)) {  in unlink1()
1408 		simple_fill_buf(urb);  in unlink1()
1409 		urb->transfer_flags |= URB_ZERO_PACKET;  in unlink1()
1418 	retval = usb_submit_urb(urb, GFP_KERNEL);  in unlink1()
1430 			retval = usb_unlink_urb(urb);  in unlink1()
1432 			if (retval == 0 && usb_pipein(urb->pipe))  in unlink1()
1433 				retval = simple_check_buf(dev, urb);  in unlink1()
1459 		usb_kill_urb(urb);  in unlink1()
1462 	retval = urb->status;  in unlink1()
1463 	simple_free_urb(urb);  in unlink1()
1490 	struct urb		**urbs;
1493 static void unlink_queued_callback(struct urb *urb)  in unlink_queued_callback()  argument
1495 	int			status = urb->status;  in unlink_queued_callback()
1496 	struct queued_ctx	*ctx = urb->context;  in unlink_queued_callback()
1500 	if (urb == ctx->urbs[ctx->num - 4] || urb == ctx->urbs[ctx->num - 2]) {  in unlink_queued_callback()
1534 	ctx.urbs = kcalloc(num, sizeof(struct urb *), GFP_KERNEL);  in unlink_queued()
1588 static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)  in verify_not_halted()  argument
1594 	retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);  in verify_not_halted()
1604 	retval = simple_io(tdev, urb, 1, 0, 0, __func__);  in verify_not_halted()
1610 static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)  in verify_halted()  argument
1616 	retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);  in verify_halted()
1626 	retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__);  in verify_halted()
1629 	retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted");  in verify_halted()
1635 static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)  in test_halt()  argument
1640 	retval = verify_not_halted(tdev, ep, urb);  in test_halt()
1645 	retval = usb_control_msg(urb->dev, usb_sndctrlpipe(urb->dev, 0),  in test_halt()
1653 	retval = verify_halted(tdev, ep, urb);  in test_halt()
1658 		ret = usb_clear_halt(urb->dev, urb->pipe);  in test_halt()
1667 	retval = usb_clear_halt(urb->dev, urb->pipe);  in test_halt()
1672 	retval = verify_not_halted(tdev, ep, urb);  in test_halt()
1685 	struct urb		*urb;  in halt_simple()  local
1689 		urb = simple_alloc_urb(udev, 0, 1024, 0);  in halt_simple()
1691 		urb = simple_alloc_urb(udev, 0, 512, 0);  in halt_simple()
1692 	if (urb == NULL)  in halt_simple()
1697 		urb->pipe = dev->in_pipe;  in halt_simple()
1698 		retval = test_halt(dev, ep, urb);  in halt_simple()
1705 		urb->pipe = dev->out_pipe;  in halt_simple()
1706 		retval = test_halt(dev, ep, urb);  in halt_simple()
1709 	simple_free_urb(urb);  in halt_simple()
1829 static void complicated_callback(struct urb *urb)  in complicated_callback()  argument
1831 	struct transfer_context	*ctx = urb->context;  in complicated_callback()
1836 	ctx->packet_count += urb->number_of_packets;  in complicated_callback()
1837 	if (urb->error_count > 0)  in complicated_callback()
1838 		ctx->errors += urb->error_count;  in complicated_callback()
1839 	else if (urb->status != 0)  in complicated_callback()
1840 		ctx->errors += (ctx->is_iso ? urb->number_of_packets : 1);  in complicated_callback()
1841 	else if (urb->actual_length != urb->transfer_buffer_length)  in complicated_callback()
1843 	else if (check_guard_bytes(ctx->dev, urb) != 0)  in complicated_callback()
1846 	if (urb->status == 0 && ctx->count > (ctx->pending - 1)  in complicated_callback()
1848 		int status = usb_submit_urb(urb, GFP_ATOMIC);  in complicated_callback()
1876 static struct urb *iso_alloc_urb(  in iso_alloc_urb()
1884 	struct urb		*urb;  in iso_alloc_urb()  local
1893 	urb = usb_alloc_urb(packets, GFP_KERNEL);  in iso_alloc_urb()
1894 	if (!urb)  in iso_alloc_urb()
1895 		return urb;  in iso_alloc_urb()
1896 	urb->dev = udev;  in iso_alloc_urb()
1897 	urb->pipe = pipe;  in iso_alloc_urb()
1899 	urb->number_of_packets = packets;  in iso_alloc_urb()
1900 	urb->transfer_buffer_length = bytes;  in iso_alloc_urb()
1901 	urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset,  in iso_alloc_urb()
1903 							&urb->transfer_dma);  in iso_alloc_urb()
1904 	if (!urb->transfer_buffer) {  in iso_alloc_urb()
1905 		usb_free_urb(urb);  in iso_alloc_urb()
1909 		memset(urb->transfer_buffer, GUARD_BYTE, offset);  in iso_alloc_urb()
1910 		urb->transfer_buffer += offset;  in iso_alloc_urb()
1911 		urb->transfer_dma += offset;  in iso_alloc_urb()
1915 	memset(urb->transfer_buffer,  in iso_alloc_urb()
1916 			usb_pipein(urb->pipe) ? GUARD_BYTE : 0,  in iso_alloc_urb()
1921 		urb->iso_frame_desc[i].length = min((unsigned) bytes, maxp);  in iso_alloc_urb()
1922 		bytes -= urb->iso_frame_desc[i].length;  in iso_alloc_urb()
1924 		urb->iso_frame_desc[i].offset = maxp * i;  in iso_alloc_urb()
1927 	urb->complete = complicated_callback;  in iso_alloc_urb()
1929 	urb->interval = 1 << (desc->bInterval - 1);  in iso_alloc_urb()
1930 	urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;  in iso_alloc_urb()
1931 	return urb;  in iso_alloc_urb()
1943 	struct urb		*urbs[param->sglen];  in test_queue()
2043 	struct urb *urb = usbtest_alloc_urb(testdev_to_usbdev(tdev),  in test_unaligned_bulk()  local
2046 	if (!urb)  in test_unaligned_bulk()
2049 	retval = simple_io(tdev, urb, iterations, 0, 0, label);  in test_unaligned_bulk()
2050 	simple_free_urb(urb);  in test_unaligned_bulk()
2084 	struct urb		*urb;  in usbtest_ioctl()  local
2153 		urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);  in usbtest_ioctl()
2154 		if (!urb) {  in usbtest_ioctl()
2159 		retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");  in usbtest_ioctl()
2160 		simple_free_urb(urb);  in usbtest_ioctl()
2168 		urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);  in usbtest_ioctl()
2169 		if (!urb) {  in usbtest_ioctl()
2174 		retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");  in usbtest_ioctl()
2175 		simple_free_urb(urb);  in usbtest_ioctl()
2183 		urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);  in usbtest_ioctl()
2184 		if (!urb) {  in usbtest_ioctl()
2189 		retval = simple_io(dev, urb, param->iterations, param->vary,  in usbtest_ioctl()
2191 		simple_free_urb(urb);  in usbtest_ioctl()
2199 		urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);  in usbtest_ioctl()
2200 		if (!urb) {  in usbtest_ioctl()
2205 		retval = simple_io(dev, urb, param->iterations, param->vary,  in usbtest_ioctl()
2207 		simple_free_urb(urb);  in usbtest_ioctl()
2507 		urb = simple_alloc_urb(udev, dev->out_int_pipe, param->length,  in usbtest_ioctl()
2509 		if (!urb) {  in usbtest_ioctl()
2514 		retval = simple_io(dev, urb, param->iterations, 0, 0, "test25");  in usbtest_ioctl()
2515 		simple_free_urb(urb);  in usbtest_ioctl()
2523 		urb = simple_alloc_urb(udev, dev->in_int_pipe, param->length,  in usbtest_ioctl()
2525 		if (!urb) {  in usbtest_ioctl()
2530 		retval = simple_io(dev, urb, param->iterations, 0, 0, "test26");  in usbtest_ioctl()
2531 		simple_free_urb(urb);  in usbtest_ioctl()