1 #include <linux/kernel.h>
2 #include <linux/errno.h>
3 #include <linux/init.h>
4 #include <linux/slab.h>
6 #include <linux/module.h>
7 #include <linux/moduleparam.h>
8 #include <linux/scatterlist.h>
9 #include <linux/mutex.h>
10 #include <linux/timer.h>
11 #include <linux/usb.h>
13 #define SIMPLE_IO_TIMEOUT 10000 /* in milliseconds */
15 /*-------------------------------------------------------------------------*/
17 static int override_alt = -1;
18 module_param_named(alt, override_alt, int, 0644);
19 MODULE_PARM_DESC(alt, ">= 0 to override altsetting selection");
20 static void complicated_callback(struct urb *urb);
22 /*-------------------------------------------------------------------------*/
24 /* FIXME make these public somewhere; usbdevfs.h? */
25 struct usbtest_param {
27 unsigned test_num; /* 0..(TEST_CASES-1) */
34 struct timeval duration;
36 #define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param)
38 /*-------------------------------------------------------------------------*/
40 #define GENERIC /* let probe() bind using module params */
42 /* Some devices that can be used for testing will have "real" drivers.
43 * Entries for those need to be enabled here by hand, after disabling
46 //#define IBOT2 /* grab iBOT2 webcams */
47 //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */
49 /*-------------------------------------------------------------------------*/
53 u8 ep_in; /* bulk/intr source */
54 u8 ep_out; /* bulk/intr sink */
57 unsigned iso:1; /* try iso in/out */
58 unsigned intr:1; /* try interrupt in/out */
62 /* this is accessed only through usbfs ioctl calls.
63 * one ioctl to issue a test ... one lock per device.
64 * tests create other threads if they need them.
65 * urbs and buffers are allocated dynamically,
66 * and data generated deterministically.
69 struct usb_interface *intf;
70 struct usbtest_info *info;
77 struct usb_endpoint_descriptor *iso_in, *iso_out;
78 struct usb_endpoint_descriptor *int_in, *int_out;
85 static struct usb_device *testdev_to_usbdev(struct usbtest_dev *test)
87 return interface_to_usbdev(test->intf);
90 /* set up all urbs so they can be used with either bulk or interrupt */
91 #define INTERRUPT_RATE 1 /* msec/transfer */
93 #define ERROR(tdev, fmt, args...) \
94 dev_err(&(tdev)->intf->dev , fmt , ## args)
95 #define WARNING(tdev, fmt, args...) \
96 dev_warn(&(tdev)->intf->dev , fmt , ## args)
98 #define GUARD_BYTE 0xA5
101 /*-------------------------------------------------------------------------*/
104 get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf)
107 struct usb_host_interface *alt;
108 struct usb_host_endpoint *in, *out;
109 struct usb_host_endpoint *iso_in, *iso_out;
110 struct usb_host_endpoint *int_in, *int_out;
111 struct usb_device *udev;
113 for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
117 iso_in = iso_out = NULL;
118 int_in = int_out = NULL;
119 alt = intf->altsetting + tmp;
121 if (override_alt >= 0 &&
122 override_alt != alt->desc.bAlternateSetting)
125 /* take the first altsetting with in-bulk + out-bulk;
126 * ignore other endpoints and altsettings.
128 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
129 struct usb_host_endpoint *e;
131 e = alt->endpoint + ep;
132 switch (usb_endpoint_type(&e->desc)) {
133 case USB_ENDPOINT_XFER_BULK:
135 case USB_ENDPOINT_XFER_INT:
138 case USB_ENDPOINT_XFER_ISOC:
145 if (usb_endpoint_dir_in(&e->desc)) {
154 if (usb_endpoint_dir_in(&e->desc)) {
163 if (usb_endpoint_dir_in(&e->desc)) {
171 if ((in && out) || iso_in || iso_out || int_in || int_out)
177 udev = testdev_to_usbdev(dev);
178 dev->info->alt = alt->desc.bAlternateSetting;
179 if (alt->desc.bAlternateSetting != 0) {
180 tmp = usb_set_interface(udev,
181 alt->desc.bInterfaceNumber,
182 alt->desc.bAlternateSetting);
188 dev->in_pipe = usb_rcvbulkpipe(udev,
189 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
190 dev->out_pipe = usb_sndbulkpipe(udev,
191 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
194 dev->iso_in = &iso_in->desc;
195 dev->in_iso_pipe = usb_rcvisocpipe(udev,
196 iso_in->desc.bEndpointAddress
197 & USB_ENDPOINT_NUMBER_MASK);
201 dev->iso_out = &iso_out->desc;
202 dev->out_iso_pipe = usb_sndisocpipe(udev,
203 iso_out->desc.bEndpointAddress
204 & USB_ENDPOINT_NUMBER_MASK);
208 dev->int_in = &int_in->desc;
209 dev->in_int_pipe = usb_rcvintpipe(udev,
210 int_in->desc.bEndpointAddress
211 & USB_ENDPOINT_NUMBER_MASK);
215 dev->int_out = &int_out->desc;
216 dev->out_int_pipe = usb_sndintpipe(udev,
217 int_out->desc.bEndpointAddress
218 & USB_ENDPOINT_NUMBER_MASK);
223 /*-------------------------------------------------------------------------*/
225 /* Support for testing basic non-queued I/O streams.
227 * These just package urbs as requests that can be easily canceled.
228 * Each urb's data buffer is dynamically allocated; callers can fill
229 * them with non-zero test data (or test for it) when appropriate.
232 static void simple_callback(struct urb *urb)
234 complete(urb->context);
237 static struct urb *usbtest_alloc_urb(
238 struct usb_device *udev,
241 unsigned transfer_flags,
244 usb_complete_t complete_fn)
248 urb = usb_alloc_urb(0, GFP_KERNEL);
253 usb_fill_int_urb(urb, udev, pipe, NULL, bytes, complete_fn,
256 usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, complete_fn,
259 urb->interval = (udev->speed == USB_SPEED_HIGH)
260 ? (INTERRUPT_RATE << 3)
262 urb->transfer_flags = transfer_flags;
263 if (usb_pipein(pipe))
264 urb->transfer_flags |= URB_SHORT_NOT_OK;
266 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
267 urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset,
268 GFP_KERNEL, &urb->transfer_dma);
270 urb->transfer_buffer = kmalloc(bytes + offset, GFP_KERNEL);
272 if (!urb->transfer_buffer) {
277 /* To test unaligned transfers add an offset and fill the
278 unused memory with a guard value */
280 memset(urb->transfer_buffer, GUARD_BYTE, offset);
281 urb->transfer_buffer += offset;
282 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
283 urb->transfer_dma += offset;
286 /* For inbound transfers use guard byte so that test fails if
287 data not correctly copied */
288 memset(urb->transfer_buffer,
289 usb_pipein(urb->pipe) ? GUARD_BYTE : 0,
294 static struct urb *simple_alloc_urb(
295 struct usb_device *udev,
300 return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0,
301 bInterval, simple_callback);
304 static struct urb *complicated_alloc_urb(
305 struct usb_device *udev,
310 return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0,
311 bInterval, complicated_callback);
314 static unsigned pattern;
315 static unsigned mod_pattern;
316 module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR);
317 MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)");
319 static unsigned get_maxpacket(struct usb_device *udev, int pipe)
321 struct usb_host_endpoint *ep;
323 ep = usb_pipe_endpoint(udev, pipe);
324 return le16_to_cpup(&ep->desc.wMaxPacketSize);
327 static void simple_fill_buf(struct urb *urb)
330 u8 *buf = urb->transfer_buffer;
331 unsigned len = urb->transfer_buffer_length;
341 maxpacket = get_maxpacket(urb->dev, urb->pipe);
342 for (i = 0; i < len; i++)
343 *buf++ = (u8) ((i % maxpacket) % 63);
348 static inline unsigned long buffer_offset(void *buf)
350 return (unsigned long)buf & (ARCH_KMALLOC_MINALIGN - 1);
353 static int check_guard_bytes(struct usbtest_dev *tdev, struct urb *urb)
355 u8 *buf = urb->transfer_buffer;
356 u8 *guard = buf - buffer_offset(buf);
359 for (i = 0; guard < buf; i++, guard++) {
360 if (*guard != GUARD_BYTE) {
361 ERROR(tdev, "guard byte[%d] %d (not %d)\n",
362 i, *guard, GUARD_BYTE);
369 static int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
373 u8 *buf = urb->transfer_buffer;
374 unsigned len = urb->actual_length;
375 unsigned maxpacket = get_maxpacket(urb->dev, urb->pipe);
377 int ret = check_guard_bytes(tdev, urb);
381 for (i = 0; i < len; i++, buf++) {
383 /* all-zeroes has no synchronization issues */
387 /* mod63 stays in sync with short-terminated transfers,
388 * or otherwise when host and gadget agree on how large
389 * each usb transfer request should be. resync is done
390 * with set_interface or set_config.
393 expected = (i % maxpacket) % 63;
395 /* always fail unsupported patterns */
400 if (*buf == expected)
402 ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected);
408 static void simple_free_urb(struct urb *urb)
410 unsigned long offset = buffer_offset(urb->transfer_buffer);
412 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
415 urb->transfer_buffer_length + offset,
416 urb->transfer_buffer - offset,
417 urb->transfer_dma - offset);
419 kfree(urb->transfer_buffer - offset);
423 static int simple_io(
424 struct usbtest_dev *tdev,
432 struct usb_device *udev = urb->dev;
433 int max = urb->transfer_buffer_length;
434 struct completion completion;
436 unsigned long expire;
438 urb->context = &completion;
439 while (retval == 0 && iterations-- > 0) {
440 init_completion(&completion);
441 if (usb_pipeout(urb->pipe)) {
442 simple_fill_buf(urb);
443 urb->transfer_flags |= URB_ZERO_PACKET;
445 retval = usb_submit_urb(urb, GFP_KERNEL);
449 expire = msecs_to_jiffies(SIMPLE_IO_TIMEOUT);
450 if (!wait_for_completion_timeout(&completion, expire)) {
452 retval = (urb->status == -ENOENT ?
453 -ETIMEDOUT : urb->status);
455 retval = urb->status;
459 if (retval == 0 && usb_pipein(urb->pipe))
460 retval = simple_check_buf(tdev, urb);
463 int len = urb->transfer_buffer_length;
468 len = (vary < max) ? vary : max;
469 urb->transfer_buffer_length = len;
472 /* FIXME if endpoint halted, clear halt (and log) */
474 urb->transfer_buffer_length = max;
476 if (expected != retval)
478 "%s failed, iterations left %d, status %d (not %d)\n",
479 label, iterations, retval, expected);
484 /*-------------------------------------------------------------------------*/
486 /* We use scatterlist primitives to test queued I/O.
487 * Yes, this also tests the scatterlist primitives.
490 static void free_sglist(struct scatterlist *sg, int nents)
496 for (i = 0; i < nents; i++) {
497 if (!sg_page(&sg[i]))
499 kfree(sg_virt(&sg[i]));
504 static struct scatterlist *
505 alloc_sglist(int nents, int max, int vary, struct usbtest_dev *dev, int pipe)
507 struct scatterlist *sg;
511 get_maxpacket(interface_to_usbdev(dev->intf), pipe);
516 sg = kmalloc_array(nents, sizeof(*sg), GFP_KERNEL);
519 sg_init_table(sg, nents);
521 for (i = 0; i < nents; i++) {
525 buf = kzalloc(size, GFP_KERNEL);
531 /* kmalloc pages are always physically contiguous! */
532 sg_set_buf(&sg[i], buf, size);
539 for (j = 0; j < size; j++)
540 *buf++ = (u8) ((j % maxpacket) % 63);
548 size = (vary < max) ? vary : max;
555 static void sg_timeout(unsigned long _req)
557 struct usb_sg_request *req = (struct usb_sg_request *) _req;
559 req->status = -ETIMEDOUT;
563 static int perform_sglist(
564 struct usbtest_dev *tdev,
567 struct usb_sg_request *req,
568 struct scatterlist *sg,
572 struct usb_device *udev = testdev_to_usbdev(tdev);
574 struct timer_list sg_timer;
576 setup_timer_on_stack(&sg_timer, sg_timeout, (unsigned long) req);
578 while (retval == 0 && iterations-- > 0) {
579 retval = usb_sg_init(req, udev, pipe,
580 (udev->speed == USB_SPEED_HIGH)
581 ? (INTERRUPT_RATE << 3)
583 sg, nents, 0, GFP_KERNEL);
587 mod_timer(&sg_timer, jiffies +
588 msecs_to_jiffies(SIMPLE_IO_TIMEOUT));
590 del_timer_sync(&sg_timer);
591 retval = req->status;
593 /* FIXME check resulting data pattern */
595 /* FIXME if endpoint halted, clear halt (and log) */
598 /* FIXME for unlink or fault handling tests, don't report
599 * failure if retval is as we expected ...
602 ERROR(tdev, "perform_sglist failed, "
603 "iterations left %d, status %d\n",
609 /*-------------------------------------------------------------------------*/
611 /* unqueued control message testing
613 * there's a nice set of device functional requirements in chapter 9 of the
614 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
615 * special test firmware.
617 * we know the device is configured (or suspended) by the time it's visible
618 * through usbfs. we can't change that, so we won't test enumeration (which
619 * worked 'well enough' to get here, this time), power management (ditto),
620 * or remote wakeup (which needs human interaction).
623 static unsigned realworld = 1;
624 module_param(realworld, uint, 0);
625 MODULE_PARM_DESC(realworld, "clear to demand stricter spec compliance");
627 static int get_altsetting(struct usbtest_dev *dev)
629 struct usb_interface *iface = dev->intf;
630 struct usb_device *udev = interface_to_usbdev(iface);
633 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
634 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
635 0, iface->altsetting[0].desc.bInterfaceNumber,
636 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
648 static int set_altsetting(struct usbtest_dev *dev, int alternate)
650 struct usb_interface *iface = dev->intf;
651 struct usb_device *udev;
653 if (alternate < 0 || alternate >= 256)
656 udev = interface_to_usbdev(iface);
657 return usb_set_interface(udev,
658 iface->altsetting[0].desc.bInterfaceNumber,
662 static int is_good_config(struct usbtest_dev *tdev, int len)
664 struct usb_config_descriptor *config;
666 if (len < sizeof(*config))
668 config = (struct usb_config_descriptor *) tdev->buf;
670 switch (config->bDescriptorType) {
672 case USB_DT_OTHER_SPEED_CONFIG:
673 if (config->bLength != 9) {
674 ERROR(tdev, "bogus config descriptor length\n");
677 /* this bit 'must be 1' but often isn't */
678 if (!realworld && !(config->bmAttributes & 0x80)) {
679 ERROR(tdev, "high bit of config attributes not set\n");
682 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
683 ERROR(tdev, "reserved config bits set\n");
691 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
693 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
695 ERROR(tdev, "bogus config descriptor read size\n");
699 static int is_good_ext(struct usbtest_dev *tdev, u8 *buf)
701 struct usb_ext_cap_descriptor *ext;
704 ext = (struct usb_ext_cap_descriptor *) buf;
706 if (ext->bLength != USB_DT_USB_EXT_CAP_SIZE) {
707 ERROR(tdev, "bogus usb 2.0 extension descriptor length\n");
711 attr = le32_to_cpu(ext->bmAttributes);
712 /* bits[1:15] is used and others are reserved */
713 if (attr & ~0xfffe) { /* reserved == 0 */
714 ERROR(tdev, "reserved bits set\n");
721 static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf)
723 struct usb_ss_cap_descriptor *ss;
725 ss = (struct usb_ss_cap_descriptor *) buf;
727 if (ss->bLength != USB_DT_USB_SS_CAP_SIZE) {
728 ERROR(tdev, "bogus superspeed device capability descriptor length\n");
733 * only bit[1] of bmAttributes is used for LTM and others are
736 if (ss->bmAttributes & ~0x02) { /* reserved == 0 */
737 ERROR(tdev, "reserved bits set in bmAttributes\n");
741 /* bits[0:3] of wSpeedSupported is used and others are reserved */
742 if (le16_to_cpu(ss->wSpeedSupported) & ~0x0f) { /* reserved == 0 */
743 ERROR(tdev, "reserved bits set in wSpeedSupported\n");
750 static int is_good_con_id(struct usbtest_dev *tdev, u8 *buf)
752 struct usb_ss_container_id_descriptor *con_id;
754 con_id = (struct usb_ss_container_id_descriptor *) buf;
756 if (con_id->bLength != USB_DT_USB_SS_CONTN_ID_SIZE) {
757 ERROR(tdev, "bogus container id descriptor length\n");
761 if (con_id->bReserved) { /* reserved == 0 */
762 ERROR(tdev, "reserved bits set\n");
769 /* sanity test for standard requests working with usb_control_mesg() and some
770 * of the utility functions which use it.
772 * this doesn't test how endpoint halts behave or data toggles get set, since
773 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
774 * halt or toggle). toggle testing is impractical without support from hcds.
776 * this avoids failing devices linux would normally work with, by not testing
777 * config/altsetting operations for devices that only support their defaults.
778 * such devices rarely support those needless operations.
780 * NOTE that since this is a sanity test, it's not examining boundary cases
781 * to see if usbcore, hcd, and device all behave right. such testing would
782 * involve varied read sizes and other operation sequences.
784 static int ch9_postconfig(struct usbtest_dev *dev)
786 struct usb_interface *iface = dev->intf;
787 struct usb_device *udev = interface_to_usbdev(iface);
790 /* [9.2.3] if there's more than one altsetting, we need to be able to
791 * set and get each one. mostly trusts the descriptors from usbcore.
793 for (i = 0; i < iface->num_altsetting; i++) {
795 /* 9.2.3 constrains the range here */
796 alt = iface->altsetting[i].desc.bAlternateSetting;
797 if (alt < 0 || alt >= iface->num_altsetting) {
799 "invalid alt [%d].bAltSetting = %d\n",
803 /* [real world] get/set unimplemented if there's only one */
804 if (realworld && iface->num_altsetting == 1)
807 /* [9.4.10] set_interface */
808 retval = set_altsetting(dev, alt);
810 dev_err(&iface->dev, "can't set_interface = %d, %d\n",
815 /* [9.4.4] get_interface always works */
816 retval = get_altsetting(dev);
818 dev_err(&iface->dev, "get alt should be %d, was %d\n",
820 return (retval < 0) ? retval : -EDOM;
825 /* [real world] get_config unimplemented if there's only one */
826 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
827 int expected = udev->actconfig->desc.bConfigurationValue;
829 /* [9.4.2] get_configuration always works
830 * ... although some cheap devices (like one TI Hub I've got)
831 * won't return config descriptors except before set_config.
833 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
834 USB_REQ_GET_CONFIGURATION,
835 USB_DIR_IN | USB_RECIP_DEVICE,
836 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
837 if (retval != 1 || dev->buf[0] != expected) {
838 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n",
839 retval, dev->buf[0], expected);
840 return (retval < 0) ? retval : -EDOM;
844 /* there's always [9.4.3] a device descriptor [9.6.1] */
845 retval = usb_get_descriptor(udev, USB_DT_DEVICE, 0,
846 dev->buf, sizeof(udev->descriptor));
847 if (retval != sizeof(udev->descriptor)) {
848 dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
849 return (retval < 0) ? retval : -EDOM;
853 * there's always [9.4.3] a bos device descriptor [9.6.2] in USB
856 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0210) {
857 struct usb_bos_descriptor *bos = NULL;
858 struct usb_dev_cap_header *header = NULL;
859 unsigned total, num, length;
862 retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
863 sizeof(*udev->bos->desc));
864 if (retval != sizeof(*udev->bos->desc)) {
865 dev_err(&iface->dev, "bos descriptor --> %d\n", retval);
866 return (retval < 0) ? retval : -EDOM;
869 bos = (struct usb_bos_descriptor *)dev->buf;
870 total = le16_to_cpu(bos->wTotalLength);
871 num = bos->bNumDeviceCaps;
873 if (total > TBUF_SIZE)
877 * get generic device-level capability descriptors [9.6.2]
880 retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
882 if (retval != total) {
883 dev_err(&iface->dev, "bos descriptor set --> %d\n",
885 return (retval < 0) ? retval : -EDOM;
888 length = sizeof(*udev->bos->desc);
890 for (i = 0; i < num; i++) {
892 if (buf + sizeof(struct usb_dev_cap_header) >
896 header = (struct usb_dev_cap_header *)buf;
897 length = header->bLength;
899 if (header->bDescriptorType !=
900 USB_DT_DEVICE_CAPABILITY) {
901 dev_warn(&udev->dev, "not device capability descriptor, skip\n");
905 switch (header->bDevCapabilityType) {
906 case USB_CAP_TYPE_EXT:
907 if (buf + USB_DT_USB_EXT_CAP_SIZE >
909 !is_good_ext(dev, buf)) {
910 dev_err(&iface->dev, "bogus usb 2.0 extension descriptor\n");
914 case USB_SS_CAP_TYPE:
915 if (buf + USB_DT_USB_SS_CAP_SIZE >
917 !is_good_ss_cap(dev, buf)) {
918 dev_err(&iface->dev, "bogus superspeed device capability descriptor\n");
922 case CONTAINER_ID_TYPE:
923 if (buf + USB_DT_USB_SS_CONTN_ID_SIZE >
925 !is_good_con_id(dev, buf)) {
926 dev_err(&iface->dev, "bogus container id descriptor\n");
936 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
937 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
938 retval = usb_get_descriptor(udev, USB_DT_CONFIG, i,
939 dev->buf, TBUF_SIZE);
940 if (!is_good_config(dev, retval)) {
942 "config [%d] descriptor --> %d\n",
944 return (retval < 0) ? retval : -EDOM;
947 /* FIXME cross-checking udev->config[i] to make sure usbcore
948 * parsed it right (etc) would be good testing paranoia
952 /* and sometimes [9.2.6.6] speed dependent descriptors */
953 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
954 struct usb_qualifier_descriptor *d = NULL;
956 /* device qualifier [9.6.2] */
957 retval = usb_get_descriptor(udev,
958 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
959 sizeof(struct usb_qualifier_descriptor));
960 if (retval == -EPIPE) {
961 if (udev->speed == USB_SPEED_HIGH) {
963 "hs dev qualifier --> %d\n",
965 return (retval < 0) ? retval : -EDOM;
967 /* usb2.0 but not high-speed capable; fine */
968 } else if (retval != sizeof(struct usb_qualifier_descriptor)) {
969 dev_err(&iface->dev, "dev qualifier --> %d\n", retval);
970 return (retval < 0) ? retval : -EDOM;
972 d = (struct usb_qualifier_descriptor *) dev->buf;
974 /* might not have [9.6.2] any other-speed configs [9.6.4] */
976 unsigned max = d->bNumConfigurations;
977 for (i = 0; i < max; i++) {
978 retval = usb_get_descriptor(udev,
979 USB_DT_OTHER_SPEED_CONFIG, i,
980 dev->buf, TBUF_SIZE);
981 if (!is_good_config(dev, retval)) {
983 "other speed config --> %d\n",
985 return (retval < 0) ? retval : -EDOM;
990 /* FIXME fetch strings from at least the device descriptor */
992 /* [9.4.5] get_status always works */
993 retval = usb_get_status(udev, USB_RECIP_DEVICE, 0, dev->buf);
995 dev_err(&iface->dev, "get dev status --> %d\n", retval);
999 /* FIXME configuration.bmAttributes says if we could try to set/clear
1000 * the device's remote wakeup feature ... if we can, test that here
1003 retval = usb_get_status(udev, USB_RECIP_INTERFACE,
1004 iface->altsetting[0].desc.bInterfaceNumber, dev->buf);
1006 dev_err(&iface->dev, "get interface status --> %d\n", retval);
1009 /* FIXME get status for each endpoint in the interface */
1014 /*-------------------------------------------------------------------------*/
1016 /* use ch9 requests to test whether:
1017 * (a) queues work for control, keeping N subtests queued and
1018 * active (auto-resubmit) for M loops through the queue.
1019 * (b) protocol stalls (control-only) will autorecover.
1020 * it's not like bulk/intr; no halt clearing.
1021 * (c) short control reads are reported and handled.
1022 * (d) queues are always processed in-order
1027 struct usbtest_dev *dev;
1028 struct completion complete;
1033 struct usbtest_param *param;
1037 #define NUM_SUBCASES 16 /* how many test subcases here? */
1040 struct usb_ctrlrequest setup;
1045 static void ctrl_complete(struct urb *urb)
1047 struct ctrl_ctx *ctx = urb->context;
1048 struct usb_ctrlrequest *reqp;
1049 struct subcase *subcase;
1050 int status = urb->status;
1052 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
1053 subcase = container_of(reqp, struct subcase, setup);
1055 spin_lock(&ctx->lock);
1059 /* queue must transfer and complete in fifo order, unless
1060 * usb_unlink_urb() is used to unlink something not at the
1061 * physical queue head (not tested).
1063 if (subcase->number > 0) {
1064 if ((subcase->number - ctx->last) != 1) {
1066 "subcase %d completed out of order, last %d\n",
1067 subcase->number, ctx->last);
1069 ctx->last = subcase->number;
1073 ctx->last = subcase->number;
1075 /* succeed or fault in only one way? */
1076 if (status == subcase->expected)
1079 /* async unlink for cleanup? */
1080 else if (status != -ECONNRESET) {
1082 /* some faults are allowed, not required */
1083 if (subcase->expected > 0 && (
1084 ((status == -subcase->expected /* happened */
1085 || status == 0)))) /* didn't */
1087 /* sometimes more than one fault is allowed */
1088 else if (subcase->number == 12 && status == -EPIPE)
1091 ERROR(ctx->dev, "subtest %d error, status %d\n",
1092 subcase->number, status);
1095 /* unexpected status codes mean errors; ideally, in hardware */
1098 if (ctx->status == 0) {
1101 ctx->status = status;
1102 ERROR(ctx->dev, "control queue %02x.%02x, err %d, "
1103 "%d left, subcase %d, len %d/%d\n",
1104 reqp->bRequestType, reqp->bRequest,
1105 status, ctx->count, subcase->number,
1107 urb->transfer_buffer_length);
1109 /* FIXME this "unlink everything" exit route should
1110 * be a separate test case.
1113 /* unlink whatever's still pending */
1114 for (i = 1; i < ctx->param->sglen; i++) {
1115 struct urb *u = ctx->urb[
1116 (i + subcase->number)
1117 % ctx->param->sglen];
1119 if (u == urb || !u->dev)
1121 spin_unlock(&ctx->lock);
1122 status = usb_unlink_urb(u);
1123 spin_lock(&ctx->lock);
1130 ERROR(ctx->dev, "urb unlink --> %d\n",
1134 status = ctx->status;
1138 /* resubmit if we need to, else mark this as done */
1139 if ((status == 0) && (ctx->pending < ctx->count)) {
1140 status = usb_submit_urb(urb, GFP_ATOMIC);
1143 "can't resubmit ctrl %02x.%02x, err %d\n",
1144 reqp->bRequestType, reqp->bRequest, status);
1151 /* signal completion when nothing's queued */
1152 if (ctx->pending == 0)
1153 complete(&ctx->complete);
1154 spin_unlock(&ctx->lock);
1158 test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param)
1160 struct usb_device *udev = testdev_to_usbdev(dev);
1162 struct ctrl_ctx context;
1165 if (param->sglen == 0 || param->iterations > UINT_MAX / param->sglen)
1168 spin_lock_init(&context.lock);
1170 init_completion(&context.complete);
1171 context.count = param->sglen * param->iterations;
1172 context.pending = 0;
1173 context.status = -ENOMEM;
1174 context.param = param;
1177 /* allocate and init the urbs we'll queue.
1178 * as with bulk/intr sglists, sglen is the queue depth; it also
1179 * controls which subtests run (more tests than sglen) or rerun.
1181 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);
1184 for (i = 0; i < param->sglen; i++) {
1185 int pipe = usb_rcvctrlpipe(udev, 0);
1188 struct usb_ctrlrequest req;
1189 struct subcase *reqp;
1191 /* sign of this variable means:
1192 * -: tested code must return this (negative) error code
1193 * +: tested code may return this (negative too) error code
1197 /* requests here are mostly expected to succeed on any
1198 * device, but some are chosen to trigger protocol stalls
1201 memset(&req, 0, sizeof(req));
1202 req.bRequest = USB_REQ_GET_DESCRIPTOR;
1203 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
1205 switch (i % NUM_SUBCASES) {
1206 case 0: /* get device descriptor */
1207 req.wValue = cpu_to_le16(USB_DT_DEVICE << 8);
1208 len = sizeof(struct usb_device_descriptor);
1210 case 1: /* get first config descriptor (only) */
1211 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1212 len = sizeof(struct usb_config_descriptor);
1214 case 2: /* get altsetting (OFTEN STALLS) */
1215 req.bRequest = USB_REQ_GET_INTERFACE;
1216 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
1217 /* index = 0 means first interface */
1221 case 3: /* get interface status */
1222 req.bRequest = USB_REQ_GET_STATUS;
1223 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
1227 case 4: /* get device status */
1228 req.bRequest = USB_REQ_GET_STATUS;
1229 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
1232 case 5: /* get device qualifier (MAY STALL) */
1233 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
1234 len = sizeof(struct usb_qualifier_descriptor);
1235 if (udev->speed != USB_SPEED_HIGH)
1238 case 6: /* get first config descriptor, plus interface */
1239 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1240 len = sizeof(struct usb_config_descriptor);
1241 len += sizeof(struct usb_interface_descriptor);
1243 case 7: /* get interface descriptor (ALWAYS STALLS) */
1244 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
1245 /* interface == 0 */
1246 len = sizeof(struct usb_interface_descriptor);
1249 /* NOTE: two consecutive stalls in the queue here.
1250 * that tests fault recovery a bit more aggressively. */
1251 case 8: /* clear endpoint halt (MAY STALL) */
1252 req.bRequest = USB_REQ_CLEAR_FEATURE;
1253 req.bRequestType = USB_RECIP_ENDPOINT;
1254 /* wValue 0 == ep halt */
1255 /* wIndex 0 == ep0 (shouldn't halt!) */
1257 pipe = usb_sndctrlpipe(udev, 0);
1260 case 9: /* get endpoint status */
1261 req.bRequest = USB_REQ_GET_STATUS;
1262 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
1266 case 10: /* trigger short read (EREMOTEIO) */
1267 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1269 expected = -EREMOTEIO;
1271 /* NOTE: two consecutive _different_ faults in the queue. */
1272 case 11: /* get endpoint descriptor (ALWAYS STALLS) */
1273 req.wValue = cpu_to_le16(USB_DT_ENDPOINT << 8);
1275 len = sizeof(struct usb_interface_descriptor);
1278 /* NOTE: sometimes even a third fault in the queue! */
1279 case 12: /* get string 0 descriptor (MAY STALL) */
1280 req.wValue = cpu_to_le16(USB_DT_STRING << 8);
1281 /* string == 0, for language IDs */
1282 len = sizeof(struct usb_interface_descriptor);
1283 /* may succeed when > 4 languages */
1284 expected = EREMOTEIO; /* or EPIPE, if no strings */
1286 case 13: /* short read, resembling case 10 */
1287 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1288 /* last data packet "should" be DATA1, not DATA0 */
1289 if (udev->speed == USB_SPEED_SUPER)
1292 len = 1024 - udev->descriptor.bMaxPacketSize0;
1293 expected = -EREMOTEIO;
1295 case 14: /* short read; try to fill the last packet */
1296 req.wValue = cpu_to_le16((USB_DT_DEVICE << 8) | 0);
1297 /* device descriptor size == 18 bytes */
1298 len = udev->descriptor.bMaxPacketSize0;
1299 if (udev->speed == USB_SPEED_SUPER)
1309 expected = -EREMOTEIO;
1312 req.wValue = cpu_to_le16(USB_DT_BOS << 8);
1314 len = le16_to_cpu(udev->bos->desc->wTotalLength);
1316 len = sizeof(struct usb_bos_descriptor);
1317 if (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0201)
1321 ERROR(dev, "bogus number of ctrl queue testcases!\n");
1322 context.status = -EINVAL;
1325 req.wLength = cpu_to_le16(len);
1326 urb[i] = u = simple_alloc_urb(udev, pipe, len, 0);
1330 reqp = kmalloc(sizeof(*reqp), GFP_KERNEL);
1334 reqp->number = i % NUM_SUBCASES;
1335 reqp->expected = expected;
1336 u->setup_packet = (char *) &reqp->setup;
1338 u->context = &context;
1339 u->complete = ctrl_complete;
1342 /* queue the urbs */
1344 spin_lock_irq(&context.lock);
1345 for (i = 0; i < param->sglen; i++) {
1346 context.status = usb_submit_urb(urb[i], GFP_ATOMIC);
1347 if (context.status != 0) {
1348 ERROR(dev, "can't submit urb[%d], status %d\n",
1350 context.count = context.pending;
1355 spin_unlock_irq(&context.lock);
1357 /* FIXME set timer and time out; provide a disconnect hook */
1359 /* wait for the last one to complete */
1360 if (context.pending > 0)
1361 wait_for_completion(&context.complete);
1364 for (i = 0; i < param->sglen; i++) {
1368 kfree(urb[i]->setup_packet);
1369 simple_free_urb(urb[i]);
1372 return context.status;
1377 /*-------------------------------------------------------------------------*/
1379 static void unlink1_callback(struct urb *urb)
1381 int status = urb->status;
1383 /* we "know" -EPIPE (stall) never happens */
1385 status = usb_submit_urb(urb, GFP_ATOMIC);
1387 urb->status = status;
1388 complete(urb->context);
1392 static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async)
1395 struct completion completion;
1398 init_completion(&completion);
1399 urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size, 0);
1402 urb->context = &completion;
1403 urb->complete = unlink1_callback;
1405 if (usb_pipeout(urb->pipe)) {
1406 simple_fill_buf(urb);
1407 urb->transfer_flags |= URB_ZERO_PACKET;
1410 /* keep the endpoint busy. there are lots of hc/hcd-internal
1411 * states, and testing should get to all of them over time.
1413 * FIXME want additional tests for when endpoint is STALLing
1414 * due to errors, or is just NAKing requests.
1416 retval = usb_submit_urb(urb, GFP_KERNEL);
1418 dev_err(&dev->intf->dev, "submit fail %d\n", retval);
1422 /* unlinking that should always work. variable delay tests more
1423 * hcd states and code paths, even with little other system load.
1425 msleep(jiffies % (2 * INTERRUPT_RATE));
1427 while (!completion_done(&completion)) {
1428 retval = usb_unlink_urb(urb);
1430 if (retval == 0 && usb_pipein(urb->pipe))
1431 retval = simple_check_buf(dev, urb);
1436 /* we can't unlink urbs while they're completing
1437 * or if they've completed, and we haven't
1438 * resubmitted. "normal" drivers would prevent
1439 * resubmission, but since we're testing unlink
1442 ERROR(dev, "unlink retry\n");
1449 dev_err(&dev->intf->dev,
1450 "unlink fail %d\n", retval);
1459 wait_for_completion(&completion);
1460 retval = urb->status;
1461 simple_free_urb(urb);
1464 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1466 return (retval == -ENOENT || retval == -EPERM) ?
1470 static int unlink_simple(struct usbtest_dev *dev, int pipe, int len)
1474 /* test sync and async paths */
1475 retval = unlink1(dev, pipe, len, 1);
1477 retval = unlink1(dev, pipe, len, 0);
1481 /*-------------------------------------------------------------------------*/
1484 struct completion complete;
1491 static void unlink_queued_callback(struct urb *urb)
1493 int status = urb->status;
1494 struct queued_ctx *ctx = urb->context;
1498 if (urb == ctx->urbs[ctx->num - 4] || urb == ctx->urbs[ctx->num - 2]) {
1499 if (status == -ECONNRESET)
1501 /* What error should we report if the URB completed normally? */
1504 ctx->status = status;
1507 if (atomic_dec_and_test(&ctx->pending))
1508 complete(&ctx->complete);
1511 static int unlink_queued(struct usbtest_dev *dev, int pipe, unsigned num,
1514 struct queued_ctx ctx;
1515 struct usb_device *udev = testdev_to_usbdev(dev);
1519 int retval = -ENOMEM;
1521 init_completion(&ctx.complete);
1522 atomic_set(&ctx.pending, 1); /* One more than the actual value */
1526 buf = usb_alloc_coherent(udev, size, GFP_KERNEL, &buf_dma);
1529 memset(buf, 0, size);
1531 /* Allocate and init the urbs we'll queue */
1532 ctx.urbs = kcalloc(num, sizeof(struct urb *), GFP_KERNEL);
1535 for (i = 0; i < num; i++) {
1536 ctx.urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
1539 usb_fill_bulk_urb(ctx.urbs[i], udev, pipe, buf, size,
1540 unlink_queued_callback, &ctx);
1541 ctx.urbs[i]->transfer_dma = buf_dma;
1542 ctx.urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1544 if (usb_pipeout(ctx.urbs[i]->pipe)) {
1545 simple_fill_buf(ctx.urbs[i]);
1546 ctx.urbs[i]->transfer_flags |= URB_ZERO_PACKET;
1550 /* Submit all the URBs and then unlink URBs num - 4 and num - 2. */
1551 for (i = 0; i < num; i++) {
1552 atomic_inc(&ctx.pending);
1553 retval = usb_submit_urb(ctx.urbs[i], GFP_KERNEL);
1555 dev_err(&dev->intf->dev, "submit urbs[%d] fail %d\n",
1557 atomic_dec(&ctx.pending);
1558 ctx.status = retval;
1563 usb_unlink_urb(ctx.urbs[num - 4]);
1564 usb_unlink_urb(ctx.urbs[num - 2]);
1567 usb_unlink_urb(ctx.urbs[i]);
1570 if (atomic_dec_and_test(&ctx.pending)) /* The extra count */
1571 complete(&ctx.complete);
1572 wait_for_completion(&ctx.complete);
1573 retval = ctx.status;
1576 for (i = 0; i < num; i++)
1577 usb_free_urb(ctx.urbs[i]);
1580 usb_free_coherent(udev, size, buf, buf_dma);
1584 /*-------------------------------------------------------------------------*/
1586 static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1591 /* shouldn't look or act halted */
1592 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1594 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
1599 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status);
1602 retval = simple_io(tdev, urb, 1, 0, 0, __func__);
1608 static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1613 /* should look and act halted */
1614 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1616 ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
1621 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status);
1624 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__);
1625 if (retval != -EPIPE)
1627 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted");
1628 if (retval != -EPIPE)
1633 static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
1637 /* shouldn't look or act halted now */
1638 retval = verify_not_halted(tdev, ep, urb);
1642 /* set halt (protocol test only), verify it worked */
1643 retval = usb_control_msg(urb->dev, usb_sndctrlpipe(urb->dev, 0),
1644 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1645 USB_ENDPOINT_HALT, ep,
1646 NULL, 0, USB_CTRL_SET_TIMEOUT);
1648 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval);
1651 retval = verify_halted(tdev, ep, urb);
1655 /* clear halt anyways, else further tests will fail */
1656 ret = usb_clear_halt(urb->dev, urb->pipe);
1658 ERROR(tdev, "ep %02x couldn't clear halt, %d\n",
1664 /* clear halt (tests API + protocol), verify it worked */
1665 retval = usb_clear_halt(urb->dev, urb->pipe);
1667 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval);
1670 retval = verify_not_halted(tdev, ep, urb);
1674 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1679 static int halt_simple(struct usbtest_dev *dev)
1684 struct usb_device *udev = testdev_to_usbdev(dev);
1686 if (udev->speed == USB_SPEED_SUPER)
1687 urb = simple_alloc_urb(udev, 0, 1024, 0);
1689 urb = simple_alloc_urb(udev, 0, 512, 0);
1694 ep = usb_pipeendpoint(dev->in_pipe) | USB_DIR_IN;
1695 urb->pipe = dev->in_pipe;
1696 retval = test_halt(dev, ep, urb);
1701 if (dev->out_pipe) {
1702 ep = usb_pipeendpoint(dev->out_pipe);
1703 urb->pipe = dev->out_pipe;
1704 retval = test_halt(dev, ep, urb);
1707 simple_free_urb(urb);
1711 /*-------------------------------------------------------------------------*/
1713 /* Control OUT tests use the vendor control requests from Intel's
1714 * USB 2.0 compliance test device: write a buffer, read it back.
1716 * Intel's spec only _requires_ that it work for one packet, which
1717 * is pretty weak. Some HCDs place limits here; most devices will
1718 * need to be able to handle more than one OUT data packet. We'll
1719 * try whatever we're told to try.
1721 static int ctrl_out(struct usbtest_dev *dev,
1722 unsigned count, unsigned length, unsigned vary, unsigned offset)
1728 struct usb_device *udev;
1730 if (length < 1 || length > 0xffff || vary >= length)
1733 buf = kmalloc(length + offset, GFP_KERNEL);
1738 udev = testdev_to_usbdev(dev);
1742 /* NOTE: hardware might well act differently if we pushed it
1743 * with lots back-to-back queued requests.
1745 for (i = 0; i < count; i++) {
1746 /* write patterned data */
1747 for (j = 0; j < len; j++)
1748 buf[j] = (u8)(i + j);
1749 retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1750 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1751 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1752 if (retval != len) {
1755 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n",
1762 /* read it back -- assuming nothing intervened!! */
1763 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
1764 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1765 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1766 if (retval != len) {
1769 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n",
1776 /* fail if we can't verify */
1777 for (j = 0; j < len; j++) {
1778 if (buf[j] != (u8)(i + j)) {
1779 ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
1780 j, buf[j], (u8)(i + j));
1792 /* [real world] the "zero bytes IN" case isn't really used.
1793 * hardware can easily trip up in this weird case, since its
1794 * status stage is IN, not OUT like other ep0in transfers.
1797 len = realworld ? 1 : 0;
1801 ERROR(dev, "ctrl_out %s failed, code %d, count %d\n",
1804 kfree(buf - offset);
1808 /*-------------------------------------------------------------------------*/
1810 /* ISO/BULK tests ... mimics common usage
1811 * - buffer length is split into N packets (mostly maxpacket sized)
1812 * - multi-buffers according to sglen
1815 struct transfer_context {
1819 struct completion done;
1821 unsigned long errors;
1822 unsigned long packet_count;
1823 struct usbtest_dev *dev;
1827 static void complicated_callback(struct urb *urb)
1829 struct transfer_context *ctx = urb->context;
1831 spin_lock(&ctx->lock);
1834 ctx->packet_count += urb->number_of_packets;
1835 if (urb->error_count > 0)
1836 ctx->errors += urb->error_count;
1837 else if (urb->status != 0)
1838 ctx->errors += (ctx->is_iso ? urb->number_of_packets : 1);
1839 else if (urb->actual_length != urb->transfer_buffer_length)
1841 else if (check_guard_bytes(ctx->dev, urb) != 0)
1844 if (urb->status == 0 && ctx->count > (ctx->pending - 1)
1845 && !ctx->submit_error) {
1846 int status = usb_submit_urb(urb, GFP_ATOMIC);
1851 dev_err(&ctx->dev->intf->dev,
1852 "iso resubmit err %d\n",
1855 case -ENODEV: /* disconnected */
1856 case -ESHUTDOWN: /* endpoint disabled */
1857 ctx->submit_error = 1;
1863 if (ctx->pending == 0) {
1865 dev_err(&ctx->dev->intf->dev,
1866 "iso test, %lu errors out of %lu\n",
1867 ctx->errors, ctx->packet_count);
1868 complete(&ctx->done);
1871 spin_unlock(&ctx->lock);
1874 static struct urb *iso_alloc_urb(
1875 struct usb_device *udev,
1877 struct usb_endpoint_descriptor *desc,
1883 unsigned i, maxp, packets;
1885 if (bytes < 0 || !desc)
1887 maxp = 0x7ff & usb_endpoint_maxp(desc);
1888 maxp *= 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11));
1889 packets = DIV_ROUND_UP(bytes, maxp);
1891 urb = usb_alloc_urb(packets, GFP_KERNEL);
1897 urb->number_of_packets = packets;
1898 urb->transfer_buffer_length = bytes;
1899 urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset,
1901 &urb->transfer_dma);
1902 if (!urb->transfer_buffer) {
1907 memset(urb->transfer_buffer, GUARD_BYTE, offset);
1908 urb->transfer_buffer += offset;
1909 urb->transfer_dma += offset;
1911 /* For inbound transfers use guard byte so that test fails if
1912 data not correctly copied */
1913 memset(urb->transfer_buffer,
1914 usb_pipein(urb->pipe) ? GUARD_BYTE : 0,
1917 for (i = 0; i < packets; i++) {
1918 /* here, only the last packet will be short */
1919 urb->iso_frame_desc[i].length = min((unsigned) bytes, maxp);
1920 bytes -= urb->iso_frame_desc[i].length;
1922 urb->iso_frame_desc[i].offset = maxp * i;
1925 urb->complete = complicated_callback;
1926 /* urb->context = SET BY CALLER */
1927 urb->interval = 1 << (desc->bInterval - 1);
1928 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1933 test_queue(struct usbtest_dev *dev, struct usbtest_param *param,
1934 int pipe, struct usb_endpoint_descriptor *desc, unsigned offset)
1936 struct transfer_context context;
1937 struct usb_device *udev;
1939 unsigned long packets = 0;
1941 struct urb *urbs[param->sglen];
1943 memset(&context, 0, sizeof(context));
1944 context.count = param->iterations * param->sglen;
1946 context.is_iso = !!desc;
1947 init_completion(&context.done);
1948 spin_lock_init(&context.lock);
1950 udev = testdev_to_usbdev(dev);
1952 for (i = 0; i < param->sglen; i++) {
1954 urbs[i] = iso_alloc_urb(udev, pipe, desc,
1955 param->length, offset);
1957 urbs[i] = complicated_alloc_urb(udev, pipe,
1964 packets += urbs[i]->number_of_packets;
1965 urbs[i]->context = &context;
1967 packets *= param->iterations;
1969 if (context.is_iso) {
1970 dev_info(&dev->intf->dev,
1971 "iso period %d %sframes, wMaxPacket %d, transactions: %d\n",
1972 1 << (desc->bInterval - 1),
1973 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1974 usb_endpoint_maxp(desc) & 0x7ff,
1975 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11)));
1977 dev_info(&dev->intf->dev,
1978 "total %lu msec (%lu packets)\n",
1979 (packets * (1 << (desc->bInterval - 1)))
1980 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
1984 spin_lock_irq(&context.lock);
1985 for (i = 0; i < param->sglen; i++) {
1987 status = usb_submit_urb(urbs[i], GFP_ATOMIC);
1989 ERROR(dev, "submit iso[%d], error %d\n", i, status);
1991 spin_unlock_irq(&context.lock);
1995 simple_free_urb(urbs[i]);
1998 context.submit_error = 1;
2002 spin_unlock_irq(&context.lock);
2004 wait_for_completion(&context.done);
2006 for (i = 0; i < param->sglen; i++) {
2008 simple_free_urb(urbs[i]);
2011 * Isochronous transfers are expected to fail sometimes. As an
2012 * arbitrary limit, we will report an error if any submissions
2013 * fail or if the transfer failure rate is > 10%.
2017 else if (context.submit_error)
2019 else if (context.errors >
2020 (context.is_iso ? context.packet_count / 10 : 0))
2025 for (i = 0; i < param->sglen; i++) {
2027 simple_free_urb(urbs[i]);
2032 static int test_unaligned_bulk(
2033 struct usbtest_dev *tdev,
2037 unsigned transfer_flags,
2041 struct urb *urb = usbtest_alloc_urb(testdev_to_usbdev(tdev),
2042 pipe, length, transfer_flags, 1, 0, simple_callback);
2047 retval = simple_io(tdev, urb, iterations, 0, 0, label);
2048 simple_free_urb(urb);
2052 /*-------------------------------------------------------------------------*/
2054 /* We only have this one interface to user space, through usbfs.
2055 * User mode code can scan usbfs to find N different devices (maybe on
2056 * different busses) to use when testing, and allocate one thread per
2057 * test. So discovery is simplified, and we have no device naming issues.
2059 * Don't use these only as stress/load tests. Use them along with with
2060 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
2061 * video capture, and so on. Run different tests at different times, in
2062 * different sequences. Nothing here should interact with other devices,
2063 * except indirectly by consuming USB bandwidth and CPU resources for test
2064 * threads and request completion. But the only way to know that for sure
2065 * is to test when HC queues are in use by many devices.
2067 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
2068 * it locks out usbcore in certain code paths. Notably, if you disconnect
2069 * the device-under-test, hub_wq will wait block forever waiting for the
2070 * ioctl to complete ... so that usb_disconnect() can abort the pending
2071 * urbs and then call usbtest_disconnect(). To abort a test, you're best
2072 * off just killing the userspace task and waiting for it to exit.
2076 usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
2078 struct usbtest_dev *dev = usb_get_intfdata(intf);
2079 struct usb_device *udev = testdev_to_usbdev(dev);
2080 struct usbtest_param *param = buf;
2081 int retval = -EOPNOTSUPP;
2083 struct scatterlist *sg;
2084 struct usb_sg_request req;
2085 struct timeval start;
2088 /* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */
2090 pattern = mod_pattern;
2092 if (code != USBTEST_REQUEST)
2095 if (param->iterations <= 0)
2098 if (param->sglen > MAX_SGLEN)
2101 if (mutex_lock_interruptible(&dev->lock))
2102 return -ERESTARTSYS;
2104 /* FIXME: What if a system sleep starts while a test is running? */
2106 /* some devices, like ez-usb default devices, need a non-default
2107 * altsetting to have any active endpoints. some tests change
2108 * altsettings; force a default so most tests don't need to check.
2110 if (dev->info->alt >= 0) {
2113 if (intf->altsetting->desc.bInterfaceNumber) {
2114 mutex_unlock(&dev->lock);
2117 res = set_altsetting(dev, dev->info->alt);
2120 "set altsetting to %d failed, %d\n",
2121 dev->info->alt, res);
2122 mutex_unlock(&dev->lock);
2128 * Just a bunch of test cases that every HCD is expected to handle.
2130 * Some may need specific firmware, though it'd be good to have
2131 * one firmware image to handle all the test cases.
2133 * FIXME add more tests! cancel requests, verify the data, control
2134 * queueing, concurrent read+write threads, and so on.
2136 do_gettimeofday(&start);
2137 switch (param->test_num) {
2140 dev_info(&intf->dev, "TEST 0: NOP\n");
2144 /* Simple non-queued bulk I/O tests */
2146 if (dev->out_pipe == 0)
2148 dev_info(&intf->dev,
2149 "TEST 1: write %d bytes %u times\n",
2150 param->length, param->iterations);
2151 urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);
2156 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2157 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");
2158 simple_free_urb(urb);
2161 if (dev->in_pipe == 0)
2163 dev_info(&intf->dev,
2164 "TEST 2: read %d bytes %u times\n",
2165 param->length, param->iterations);
2166 urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);
2171 /* FIRMWARE: bulk source (maybe generates short writes) */
2172 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");
2173 simple_free_urb(urb);
2176 if (dev->out_pipe == 0 || param->vary == 0)
2178 dev_info(&intf->dev,
2179 "TEST 3: write/%d 0..%d bytes %u times\n",
2180 param->vary, param->length, param->iterations);
2181 urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);
2186 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2187 retval = simple_io(dev, urb, param->iterations, param->vary,
2189 simple_free_urb(urb);
2192 if (dev->in_pipe == 0 || param->vary == 0)
2194 dev_info(&intf->dev,
2195 "TEST 4: read/%d 0..%d bytes %u times\n",
2196 param->vary, param->length, param->iterations);
2197 urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);
2202 /* FIRMWARE: bulk source (maybe generates short writes) */
2203 retval = simple_io(dev, urb, param->iterations, param->vary,
2205 simple_free_urb(urb);
2208 /* Queued bulk I/O tests */
2210 if (dev->out_pipe == 0 || param->sglen == 0)
2212 dev_info(&intf->dev,
2213 "TEST 5: write %d sglists %d entries of %d bytes\n",
2215 param->sglen, param->length);
2216 sg = alloc_sglist(param->sglen, param->length,
2217 0, dev, dev->out_pipe);
2222 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2223 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
2224 &req, sg, param->sglen);
2225 free_sglist(sg, param->sglen);
2229 if (dev->in_pipe == 0 || param->sglen == 0)
2231 dev_info(&intf->dev,
2232 "TEST 6: read %d sglists %d entries of %d bytes\n",
2234 param->sglen, param->length);
2235 sg = alloc_sglist(param->sglen, param->length,
2236 0, dev, dev->in_pipe);
2241 /* FIRMWARE: bulk source (maybe generates short writes) */
2242 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
2243 &req, sg, param->sglen);
2244 free_sglist(sg, param->sglen);
2247 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
2249 dev_info(&intf->dev,
2250 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
2251 param->vary, param->iterations,
2252 param->sglen, param->length);
2253 sg = alloc_sglist(param->sglen, param->length,
2254 param->vary, dev, dev->out_pipe);
2259 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2260 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
2261 &req, sg, param->sglen);
2262 free_sglist(sg, param->sglen);
2265 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
2267 dev_info(&intf->dev,
2268 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
2269 param->vary, param->iterations,
2270 param->sglen, param->length);
2271 sg = alloc_sglist(param->sglen, param->length,
2272 param->vary, dev, dev->in_pipe);
2277 /* FIRMWARE: bulk source (maybe generates short writes) */
2278 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
2279 &req, sg, param->sglen);
2280 free_sglist(sg, param->sglen);
2283 /* non-queued sanity tests for control (chapter 9 subset) */
2286 dev_info(&intf->dev,
2287 "TEST 9: ch9 (subset) control tests, %d times\n",
2289 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2290 retval = ch9_postconfig(dev);
2292 dev_err(&intf->dev, "ch9 subset failed, "
2293 "iterations left %d\n", i);
2296 /* queued control messaging */
2299 dev_info(&intf->dev,
2300 "TEST 10: queue %d control calls, %d times\n",
2303 retval = test_ctrl_queue(dev, param);
2306 /* simple non-queued unlinks (ring with one urb) */
2308 if (dev->in_pipe == 0 || !param->length)
2311 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n",
2312 param->iterations, param->length);
2313 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2314 retval = unlink_simple(dev, dev->in_pipe,
2317 dev_err(&intf->dev, "unlink reads failed %d, "
2318 "iterations left %d\n", retval, i);
2321 if (dev->out_pipe == 0 || !param->length)
2324 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n",
2325 param->iterations, param->length);
2326 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2327 retval = unlink_simple(dev, dev->out_pipe,
2330 dev_err(&intf->dev, "unlink writes failed %d, "
2331 "iterations left %d\n", retval, i);
2336 if (dev->out_pipe == 0 && dev->in_pipe == 0)
2339 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n",
2341 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2342 retval = halt_simple(dev);
2345 ERROR(dev, "halts failed, iterations left %d\n", i);
2348 /* control write tests */
2350 if (!dev->info->ctrl_out)
2352 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
2354 realworld ? 1 : 0, param->length,
2356 retval = ctrl_out(dev, param->iterations,
2357 param->length, param->vary, 0);
2360 /* iso write tests */
2362 if (dev->out_iso_pipe == 0 || param->sglen == 0)
2364 dev_info(&intf->dev,
2365 "TEST 15: write %d iso, %d entries of %d bytes\n",
2367 param->sglen, param->length);
2368 /* FIRMWARE: iso sink */
2369 retval = test_queue(dev, param,
2370 dev->out_iso_pipe, dev->iso_out, 0);
2373 /* iso read tests */
2375 if (dev->in_iso_pipe == 0 || param->sglen == 0)
2377 dev_info(&intf->dev,
2378 "TEST 16: read %d iso, %d entries of %d bytes\n",
2380 param->sglen, param->length);
2381 /* FIRMWARE: iso source */
2382 retval = test_queue(dev, param,
2383 dev->in_iso_pipe, dev->iso_in, 0);
2386 /* FIXME scatterlist cancel (needs helper thread) */
2388 /* Tests for bulk I/O using DMA mapping by core and odd address */
2390 if (dev->out_pipe == 0)
2392 dev_info(&intf->dev,
2393 "TEST 17: write odd addr %d bytes %u times core map\n",
2394 param->length, param->iterations);
2396 retval = test_unaligned_bulk(
2398 param->length, param->iterations,
2403 if (dev->in_pipe == 0)
2405 dev_info(&intf->dev,
2406 "TEST 18: read odd addr %d bytes %u times core map\n",
2407 param->length, param->iterations);
2409 retval = test_unaligned_bulk(
2411 param->length, param->iterations,
2415 /* Tests for bulk I/O using premapped coherent buffer and odd address */
2417 if (dev->out_pipe == 0)
2419 dev_info(&intf->dev,
2420 "TEST 19: write odd addr %d bytes %u times premapped\n",
2421 param->length, param->iterations);
2423 retval = test_unaligned_bulk(
2425 param->length, param->iterations,
2426 URB_NO_TRANSFER_DMA_MAP, "test19");
2430 if (dev->in_pipe == 0)
2432 dev_info(&intf->dev,
2433 "TEST 20: read odd addr %d bytes %u times premapped\n",
2434 param->length, param->iterations);
2436 retval = test_unaligned_bulk(
2438 param->length, param->iterations,
2439 URB_NO_TRANSFER_DMA_MAP, "test20");
2442 /* control write tests with unaligned buffer */
2444 if (!dev->info->ctrl_out)
2446 dev_info(&intf->dev,
2447 "TEST 21: %d ep0out odd addr, %d..%d vary %d\n",
2449 realworld ? 1 : 0, param->length,
2451 retval = ctrl_out(dev, param->iterations,
2452 param->length, param->vary, 1);
2455 /* unaligned iso tests */
2457 if (dev->out_iso_pipe == 0 || param->sglen == 0)
2459 dev_info(&intf->dev,
2460 "TEST 22: write %d iso odd, %d entries of %d bytes\n",
2462 param->sglen, param->length);
2463 retval = test_queue(dev, param,
2464 dev->out_iso_pipe, dev->iso_out, 1);
2468 if (dev->in_iso_pipe == 0 || param->sglen == 0)
2470 dev_info(&intf->dev,
2471 "TEST 23: read %d iso odd, %d entries of %d bytes\n",
2473 param->sglen, param->length);
2474 retval = test_queue(dev, param,
2475 dev->in_iso_pipe, dev->iso_in, 1);
2478 /* unlink URBs from a bulk-OUT queue */
2480 if (dev->out_pipe == 0 || !param->length || param->sglen < 4)
2483 dev_info(&intf->dev, "TEST 24: unlink from %d queues of "
2484 "%d %d-byte writes\n",
2485 param->iterations, param->sglen, param->length);
2486 for (i = param->iterations; retval == 0 && i > 0; --i) {
2487 retval = unlink_queued(dev, dev->out_pipe,
2488 param->sglen, param->length);
2491 "unlink queued writes failed %d, "
2492 "iterations left %d\n", retval, i);
2498 /* Simple non-queued interrupt I/O tests */
2500 if (dev->out_int_pipe == 0)
2502 dev_info(&intf->dev,
2503 "TEST 25: write %d bytes %u times\n",
2504 param->length, param->iterations);
2505 urb = simple_alloc_urb(udev, dev->out_int_pipe, param->length,
2506 dev->int_out->bInterval);
2511 /* FIRMWARE: interrupt sink (maybe accepts short writes) */
2512 retval = simple_io(dev, urb, param->iterations, 0, 0, "test25");
2513 simple_free_urb(urb);
2516 if (dev->in_int_pipe == 0)
2518 dev_info(&intf->dev,
2519 "TEST 26: read %d bytes %u times\n",
2520 param->length, param->iterations);
2521 urb = simple_alloc_urb(udev, dev->in_int_pipe, param->length,
2522 dev->int_in->bInterval);
2527 /* FIRMWARE: interrupt source (maybe generates short writes) */
2528 retval = simple_io(dev, urb, param->iterations, 0, 0, "test26");
2529 simple_free_urb(urb);
2532 /* We do performance test, so ignore data compare */
2533 if (dev->out_pipe == 0 || param->sglen == 0 || pattern != 0)
2535 dev_info(&intf->dev,
2536 "TEST 27: bulk write %dMbytes\n", (param->iterations *
2537 param->sglen * param->length) / (1024 * 1024));
2538 retval = test_queue(dev, param,
2539 dev->out_pipe, NULL, 0);
2542 if (dev->in_pipe == 0 || param->sglen == 0 || pattern != 0)
2544 dev_info(&intf->dev,
2545 "TEST 28: bulk read %dMbytes\n", (param->iterations *
2546 param->sglen * param->length) / (1024 * 1024));
2547 retval = test_queue(dev, param,
2548 dev->in_pipe, NULL, 0);
2551 do_gettimeofday(¶m->duration);
2552 param->duration.tv_sec -= start.tv_sec;
2553 param->duration.tv_usec -= start.tv_usec;
2554 if (param->duration.tv_usec < 0) {
2555 param->duration.tv_usec += 1000 * 1000;
2556 param->duration.tv_sec -= 1;
2558 mutex_unlock(&dev->lock);
2562 /*-------------------------------------------------------------------------*/
2564 static unsigned force_interrupt;
2565 module_param(force_interrupt, uint, 0);
2566 MODULE_PARM_DESC(force_interrupt, "0 = test default; else interrupt");
2569 static unsigned short vendor;
2570 module_param(vendor, ushort, 0);
2571 MODULE_PARM_DESC(vendor, "vendor code (from usb-if)");
2573 static unsigned short product;
2574 module_param(product, ushort, 0);
2575 MODULE_PARM_DESC(product, "product code (from vendor)");
2579 usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id)
2581 struct usb_device *udev;
2582 struct usbtest_dev *dev;
2583 struct usbtest_info *info;
2584 char *rtest, *wtest;
2585 char *irtest, *iwtest;
2586 char *intrtest, *intwtest;
2588 udev = interface_to_usbdev(intf);
2591 /* specify devices by module parameters? */
2592 if (id->match_flags == 0) {
2593 /* vendor match required, product match optional */
2594 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
2596 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
2598 dev_info(&intf->dev, "matched module params, "
2599 "vend=0x%04x prod=0x%04x\n",
2600 le16_to_cpu(udev->descriptor.idVendor),
2601 le16_to_cpu(udev->descriptor.idProduct));
2605 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
2608 info = (struct usbtest_info *) id->driver_info;
2610 mutex_init(&dev->lock);
2614 /* cacheline-aligned scratch for i/o */
2615 dev->buf = kmalloc(TBUF_SIZE, GFP_KERNEL);
2616 if (dev->buf == NULL) {
2621 /* NOTE this doesn't yet test the handful of difference that are
2622 * visible with high speed interrupts: bigger maxpacket (1K) and
2623 * "high bandwidth" modes (up to 3 packets/uframe).
2626 irtest = iwtest = "";
2627 intrtest = intwtest = "";
2628 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
2630 dev->in_pipe = usb_rcvintpipe(udev, info->ep_in);
2634 dev->out_pipe = usb_sndintpipe(udev, info->ep_out);
2635 wtest = " intr-out";
2638 if (override_alt >= 0 || info->autoconf) {
2641 status = get_endpoints(dev, intf);
2643 WARNING(dev, "couldn't get endpoints, %d\n",
2649 /* may find bulk or ISO pipes */
2652 dev->in_pipe = usb_rcvbulkpipe(udev,
2655 dev->out_pipe = usb_sndbulkpipe(udev,
2661 wtest = " bulk-out";
2662 if (dev->in_iso_pipe)
2664 if (dev->out_iso_pipe)
2665 iwtest = " iso-out";
2666 if (dev->in_int_pipe)
2667 intrtest = " int-in";
2668 if (dev->out_int_pipe)
2669 intwtest = " int-out";
2672 usb_set_intfdata(intf, dev);
2673 dev_info(&intf->dev, "%s\n", info->name);
2674 dev_info(&intf->dev, "%s {control%s%s%s%s%s%s%s} tests%s\n",
2675 usb_speed_string(udev->speed),
2676 info->ctrl_out ? " in/out" : "",
2680 info->alt >= 0 ? " (+alt)" : "");
2684 static int usbtest_suspend(struct usb_interface *intf, pm_message_t message)
2689 static int usbtest_resume(struct usb_interface *intf)
2695 static void usbtest_disconnect(struct usb_interface *intf)
2697 struct usbtest_dev *dev = usb_get_intfdata(intf);
2699 usb_set_intfdata(intf, NULL);
2700 dev_dbg(&intf->dev, "disconnect\n");
2704 /* Basic testing only needs a device that can source or sink bulk traffic.
2705 * Any device can test control transfers (default with GENERIC binding).
2707 * Several entries work with the default EP0 implementation that's built
2708 * into EZ-USB chips. There's a default vendor ID which can be overridden
2709 * by (very) small config EEPROMS, but otherwise all these devices act
2710 * identically until firmware is loaded: only EP0 works. It turns out
2711 * to be easy to make other endpoints work, without modifying that EP0
2712 * behavior. For now, we expect that kind of firmware.
2715 /* an21xx or fx versions of ez-usb */
2716 static struct usbtest_info ez1_info = {
2717 .name = "EZ-USB device",
2723 /* fx2 version of ez-usb */
2724 static struct usbtest_info ez2_info = {
2725 .name = "FX2 device",
2731 /* ezusb family device with dedicated usb test firmware,
2733 static struct usbtest_info fw_info = {
2734 .name = "usb test device",
2738 .autoconf = 1, /* iso and ctrl_out need autoconf */
2740 .iso = 1, /* iso_ep's are #8 in/out */
2743 /* peripheral running Linux and 'zero.c' test firmware, or
2744 * its user-mode cousin. different versions of this use
2745 * different hardware with the same vendor/product codes.
2746 * host side MUST rely on the endpoint descriptors.
2748 static struct usbtest_info gz_info = {
2749 .name = "Linux gadget zero",
2757 static struct usbtest_info um_info = {
2758 .name = "Linux user mode test driver",
2763 static struct usbtest_info um2_info = {
2764 .name = "Linux user mode ISO test driver",
2771 /* this is a nice source of high speed bulk data;
2772 * uses an FX2, with firmware provided in the device
2774 static struct usbtest_info ibot2_info = {
2775 .name = "iBOT2 webcam",
2782 /* we can use any device to test control traffic */
2783 static struct usbtest_info generic_info = {
2784 .name = "Generic USB device",
2790 static const struct usb_device_id id_table[] = {
2792 /*-------------------------------------------------------------*/
2794 /* EZ-USB devices which download firmware to replace (or in our
2795 * case augment) the default device implementation.
2798 /* generic EZ-USB FX controller */
2799 { USB_DEVICE(0x0547, 0x2235),
2800 .driver_info = (unsigned long) &ez1_info,
2803 /* CY3671 development board with EZ-USB FX */
2804 { USB_DEVICE(0x0547, 0x0080),
2805 .driver_info = (unsigned long) &ez1_info,
2808 /* generic EZ-USB FX2 controller (or development board) */
2809 { USB_DEVICE(0x04b4, 0x8613),
2810 .driver_info = (unsigned long) &ez2_info,
2813 /* re-enumerated usb test device firmware */
2814 { USB_DEVICE(0xfff0, 0xfff0),
2815 .driver_info = (unsigned long) &fw_info,
2818 /* "Gadget Zero" firmware runs under Linux */
2819 { USB_DEVICE(0x0525, 0xa4a0),
2820 .driver_info = (unsigned long) &gz_info,
2823 /* so does a user-mode variant */
2824 { USB_DEVICE(0x0525, 0xa4a4),
2825 .driver_info = (unsigned long) &um_info,
2828 /* ... and a user-mode variant that talks iso */
2829 { USB_DEVICE(0x0525, 0xa4a3),
2830 .driver_info = (unsigned long) &um2_info,
2834 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2835 /* this does not coexist with the real Keyspan 19qi driver! */
2836 { USB_DEVICE(0x06cd, 0x010b),
2837 .driver_info = (unsigned long) &ez1_info,
2841 /*-------------------------------------------------------------*/
2844 /* iBOT2 makes a nice source of high speed bulk-in data */
2845 /* this does not coexist with a real iBOT2 driver! */
2846 { USB_DEVICE(0x0b62, 0x0059),
2847 .driver_info = (unsigned long) &ibot2_info,
2851 /*-------------------------------------------------------------*/
2854 /* module params can specify devices to use for control tests */
2855 { .driver_info = (unsigned long) &generic_info, },
2858 /*-------------------------------------------------------------*/
2862 MODULE_DEVICE_TABLE(usb, id_table);
2864 static struct usb_driver usbtest_driver = {
2866 .id_table = id_table,
2867 .probe = usbtest_probe,
2868 .unlocked_ioctl = usbtest_ioctl,
2869 .disconnect = usbtest_disconnect,
2870 .suspend = usbtest_suspend,
2871 .resume = usbtest_resume,
2874 /*-------------------------------------------------------------------------*/
2876 static int __init usbtest_init(void)
2880 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product);
2882 return usb_register(&usbtest_driver);
2884 module_init(usbtest_init);
2886 static void __exit usbtest_exit(void)
2888 usb_deregister(&usbtest_driver);
2890 module_exit(usbtest_exit);
2892 MODULE_DESCRIPTION("USB Core/HCD Testing Driver");
2893 MODULE_LICENSE("GPL");