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;
508 unsigned int n_size = 0;
512 get_maxpacket(interface_to_usbdev(dev->intf), pipe);
517 sg = kmalloc_array(nents, sizeof(*sg), GFP_KERNEL);
520 sg_init_table(sg, nents);
522 for (i = 0; i < nents; i++) {
526 buf = kzalloc(size, GFP_KERNEL);
532 /* kmalloc pages are always physically contiguous! */
533 sg_set_buf(&sg[i], buf, size);
540 for (j = 0; j < size; j++)
541 *buf++ = (u8) (((j + n_size) % maxpacket) % 63);
550 size = (vary < max) ? vary : max;
557 static void sg_timeout(unsigned long _req)
559 struct usb_sg_request *req = (struct usb_sg_request *) _req;
561 req->status = -ETIMEDOUT;
565 static int perform_sglist(
566 struct usbtest_dev *tdev,
569 struct usb_sg_request *req,
570 struct scatterlist *sg,
574 struct usb_device *udev = testdev_to_usbdev(tdev);
576 struct timer_list sg_timer;
578 setup_timer_on_stack(&sg_timer, sg_timeout, (unsigned long) req);
580 while (retval == 0 && iterations-- > 0) {
581 retval = usb_sg_init(req, udev, pipe,
582 (udev->speed == USB_SPEED_HIGH)
583 ? (INTERRUPT_RATE << 3)
585 sg, nents, 0, GFP_KERNEL);
589 mod_timer(&sg_timer, jiffies +
590 msecs_to_jiffies(SIMPLE_IO_TIMEOUT));
592 del_timer_sync(&sg_timer);
593 retval = req->status;
595 /* FIXME check resulting data pattern */
597 /* FIXME if endpoint halted, clear halt (and log) */
600 /* FIXME for unlink or fault handling tests, don't report
601 * failure if retval is as we expected ...
604 ERROR(tdev, "perform_sglist failed, "
605 "iterations left %d, status %d\n",
611 /*-------------------------------------------------------------------------*/
613 /* unqueued control message testing
615 * there's a nice set of device functional requirements in chapter 9 of the
616 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
617 * special test firmware.
619 * we know the device is configured (or suspended) by the time it's visible
620 * through usbfs. we can't change that, so we won't test enumeration (which
621 * worked 'well enough' to get here, this time), power management (ditto),
622 * or remote wakeup (which needs human interaction).
625 static unsigned realworld = 1;
626 module_param(realworld, uint, 0);
627 MODULE_PARM_DESC(realworld, "clear to demand stricter spec compliance");
629 static int get_altsetting(struct usbtest_dev *dev)
631 struct usb_interface *iface = dev->intf;
632 struct usb_device *udev = interface_to_usbdev(iface);
635 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
636 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
637 0, iface->altsetting[0].desc.bInterfaceNumber,
638 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
650 static int set_altsetting(struct usbtest_dev *dev, int alternate)
652 struct usb_interface *iface = dev->intf;
653 struct usb_device *udev;
655 if (alternate < 0 || alternate >= 256)
658 udev = interface_to_usbdev(iface);
659 return usb_set_interface(udev,
660 iface->altsetting[0].desc.bInterfaceNumber,
664 static int is_good_config(struct usbtest_dev *tdev, int len)
666 struct usb_config_descriptor *config;
668 if (len < sizeof(*config))
670 config = (struct usb_config_descriptor *) tdev->buf;
672 switch (config->bDescriptorType) {
674 case USB_DT_OTHER_SPEED_CONFIG:
675 if (config->bLength != 9) {
676 ERROR(tdev, "bogus config descriptor length\n");
679 /* this bit 'must be 1' but often isn't */
680 if (!realworld && !(config->bmAttributes & 0x80)) {
681 ERROR(tdev, "high bit of config attributes not set\n");
684 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
685 ERROR(tdev, "reserved config bits set\n");
693 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
695 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
697 ERROR(tdev, "bogus config descriptor read size\n");
701 static int is_good_ext(struct usbtest_dev *tdev, u8 *buf)
703 struct usb_ext_cap_descriptor *ext;
706 ext = (struct usb_ext_cap_descriptor *) buf;
708 if (ext->bLength != USB_DT_USB_EXT_CAP_SIZE) {
709 ERROR(tdev, "bogus usb 2.0 extension descriptor length\n");
713 attr = le32_to_cpu(ext->bmAttributes);
714 /* bits[1:15] is used and others are reserved */
715 if (attr & ~0xfffe) { /* reserved == 0 */
716 ERROR(tdev, "reserved bits set\n");
723 static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf)
725 struct usb_ss_cap_descriptor *ss;
727 ss = (struct usb_ss_cap_descriptor *) buf;
729 if (ss->bLength != USB_DT_USB_SS_CAP_SIZE) {
730 ERROR(tdev, "bogus superspeed device capability descriptor length\n");
735 * only bit[1] of bmAttributes is used for LTM and others are
738 if (ss->bmAttributes & ~0x02) { /* reserved == 0 */
739 ERROR(tdev, "reserved bits set in bmAttributes\n");
743 /* bits[0:3] of wSpeedSupported is used and others are reserved */
744 if (le16_to_cpu(ss->wSpeedSupported) & ~0x0f) { /* reserved == 0 */
745 ERROR(tdev, "reserved bits set in wSpeedSupported\n");
752 static int is_good_con_id(struct usbtest_dev *tdev, u8 *buf)
754 struct usb_ss_container_id_descriptor *con_id;
756 con_id = (struct usb_ss_container_id_descriptor *) buf;
758 if (con_id->bLength != USB_DT_USB_SS_CONTN_ID_SIZE) {
759 ERROR(tdev, "bogus container id descriptor length\n");
763 if (con_id->bReserved) { /* reserved == 0 */
764 ERROR(tdev, "reserved bits set\n");
771 /* sanity test for standard requests working with usb_control_mesg() and some
772 * of the utility functions which use it.
774 * this doesn't test how endpoint halts behave or data toggles get set, since
775 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
776 * halt or toggle). toggle testing is impractical without support from hcds.
778 * this avoids failing devices linux would normally work with, by not testing
779 * config/altsetting operations for devices that only support their defaults.
780 * such devices rarely support those needless operations.
782 * NOTE that since this is a sanity test, it's not examining boundary cases
783 * to see if usbcore, hcd, and device all behave right. such testing would
784 * involve varied read sizes and other operation sequences.
786 static int ch9_postconfig(struct usbtest_dev *dev)
788 struct usb_interface *iface = dev->intf;
789 struct usb_device *udev = interface_to_usbdev(iface);
792 /* [9.2.3] if there's more than one altsetting, we need to be able to
793 * set and get each one. mostly trusts the descriptors from usbcore.
795 for (i = 0; i < iface->num_altsetting; i++) {
797 /* 9.2.3 constrains the range here */
798 alt = iface->altsetting[i].desc.bAlternateSetting;
799 if (alt < 0 || alt >= iface->num_altsetting) {
801 "invalid alt [%d].bAltSetting = %d\n",
805 /* [real world] get/set unimplemented if there's only one */
806 if (realworld && iface->num_altsetting == 1)
809 /* [9.4.10] set_interface */
810 retval = set_altsetting(dev, alt);
812 dev_err(&iface->dev, "can't set_interface = %d, %d\n",
817 /* [9.4.4] get_interface always works */
818 retval = get_altsetting(dev);
820 dev_err(&iface->dev, "get alt should be %d, was %d\n",
822 return (retval < 0) ? retval : -EDOM;
827 /* [real world] get_config unimplemented if there's only one */
828 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
829 int expected = udev->actconfig->desc.bConfigurationValue;
831 /* [9.4.2] get_configuration always works
832 * ... although some cheap devices (like one TI Hub I've got)
833 * won't return config descriptors except before set_config.
835 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
836 USB_REQ_GET_CONFIGURATION,
837 USB_DIR_IN | USB_RECIP_DEVICE,
838 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
839 if (retval != 1 || dev->buf[0] != expected) {
840 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n",
841 retval, dev->buf[0], expected);
842 return (retval < 0) ? retval : -EDOM;
846 /* there's always [9.4.3] a device descriptor [9.6.1] */
847 retval = usb_get_descriptor(udev, USB_DT_DEVICE, 0,
848 dev->buf, sizeof(udev->descriptor));
849 if (retval != sizeof(udev->descriptor)) {
850 dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
851 return (retval < 0) ? retval : -EDOM;
855 * there's always [9.4.3] a bos device descriptor [9.6.2] in USB
858 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0210) {
859 struct usb_bos_descriptor *bos = NULL;
860 struct usb_dev_cap_header *header = NULL;
861 unsigned total, num, length;
864 retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
865 sizeof(*udev->bos->desc));
866 if (retval != sizeof(*udev->bos->desc)) {
867 dev_err(&iface->dev, "bos descriptor --> %d\n", retval);
868 return (retval < 0) ? retval : -EDOM;
871 bos = (struct usb_bos_descriptor *)dev->buf;
872 total = le16_to_cpu(bos->wTotalLength);
873 num = bos->bNumDeviceCaps;
875 if (total > TBUF_SIZE)
879 * get generic device-level capability descriptors [9.6.2]
882 retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
884 if (retval != total) {
885 dev_err(&iface->dev, "bos descriptor set --> %d\n",
887 return (retval < 0) ? retval : -EDOM;
890 length = sizeof(*udev->bos->desc);
892 for (i = 0; i < num; i++) {
894 if (buf + sizeof(struct usb_dev_cap_header) >
898 header = (struct usb_dev_cap_header *)buf;
899 length = header->bLength;
901 if (header->bDescriptorType !=
902 USB_DT_DEVICE_CAPABILITY) {
903 dev_warn(&udev->dev, "not device capability descriptor, skip\n");
907 switch (header->bDevCapabilityType) {
908 case USB_CAP_TYPE_EXT:
909 if (buf + USB_DT_USB_EXT_CAP_SIZE >
911 !is_good_ext(dev, buf)) {
912 dev_err(&iface->dev, "bogus usb 2.0 extension descriptor\n");
916 case USB_SS_CAP_TYPE:
917 if (buf + USB_DT_USB_SS_CAP_SIZE >
919 !is_good_ss_cap(dev, buf)) {
920 dev_err(&iface->dev, "bogus superspeed device capability descriptor\n");
924 case CONTAINER_ID_TYPE:
925 if (buf + USB_DT_USB_SS_CONTN_ID_SIZE >
927 !is_good_con_id(dev, buf)) {
928 dev_err(&iface->dev, "bogus container id descriptor\n");
938 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
939 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
940 retval = usb_get_descriptor(udev, USB_DT_CONFIG, i,
941 dev->buf, TBUF_SIZE);
942 if (!is_good_config(dev, retval)) {
944 "config [%d] descriptor --> %d\n",
946 return (retval < 0) ? retval : -EDOM;
949 /* FIXME cross-checking udev->config[i] to make sure usbcore
950 * parsed it right (etc) would be good testing paranoia
954 /* and sometimes [9.2.6.6] speed dependent descriptors */
955 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
956 struct usb_qualifier_descriptor *d = NULL;
958 /* device qualifier [9.6.2] */
959 retval = usb_get_descriptor(udev,
960 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
961 sizeof(struct usb_qualifier_descriptor));
962 if (retval == -EPIPE) {
963 if (udev->speed == USB_SPEED_HIGH) {
965 "hs dev qualifier --> %d\n",
967 return (retval < 0) ? retval : -EDOM;
969 /* usb2.0 but not high-speed capable; fine */
970 } else if (retval != sizeof(struct usb_qualifier_descriptor)) {
971 dev_err(&iface->dev, "dev qualifier --> %d\n", retval);
972 return (retval < 0) ? retval : -EDOM;
974 d = (struct usb_qualifier_descriptor *) dev->buf;
976 /* might not have [9.6.2] any other-speed configs [9.6.4] */
978 unsigned max = d->bNumConfigurations;
979 for (i = 0; i < max; i++) {
980 retval = usb_get_descriptor(udev,
981 USB_DT_OTHER_SPEED_CONFIG, i,
982 dev->buf, TBUF_SIZE);
983 if (!is_good_config(dev, retval)) {
985 "other speed config --> %d\n",
987 return (retval < 0) ? retval : -EDOM;
992 /* FIXME fetch strings from at least the device descriptor */
994 /* [9.4.5] get_status always works */
995 retval = usb_get_status(udev, USB_RECIP_DEVICE, 0, dev->buf);
997 dev_err(&iface->dev, "get dev status --> %d\n", retval);
1001 /* FIXME configuration.bmAttributes says if we could try to set/clear
1002 * the device's remote wakeup feature ... if we can, test that here
1005 retval = usb_get_status(udev, USB_RECIP_INTERFACE,
1006 iface->altsetting[0].desc.bInterfaceNumber, dev->buf);
1008 dev_err(&iface->dev, "get interface status --> %d\n", retval);
1011 /* FIXME get status for each endpoint in the interface */
1016 /*-------------------------------------------------------------------------*/
1018 /* use ch9 requests to test whether:
1019 * (a) queues work for control, keeping N subtests queued and
1020 * active (auto-resubmit) for M loops through the queue.
1021 * (b) protocol stalls (control-only) will autorecover.
1022 * it's not like bulk/intr; no halt clearing.
1023 * (c) short control reads are reported and handled.
1024 * (d) queues are always processed in-order
1029 struct usbtest_dev *dev;
1030 struct completion complete;
1035 struct usbtest_param *param;
1039 #define NUM_SUBCASES 16 /* how many test subcases here? */
1042 struct usb_ctrlrequest setup;
1047 static void ctrl_complete(struct urb *urb)
1049 struct ctrl_ctx *ctx = urb->context;
1050 struct usb_ctrlrequest *reqp;
1051 struct subcase *subcase;
1052 int status = urb->status;
1054 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
1055 subcase = container_of(reqp, struct subcase, setup);
1057 spin_lock(&ctx->lock);
1061 /* queue must transfer and complete in fifo order, unless
1062 * usb_unlink_urb() is used to unlink something not at the
1063 * physical queue head (not tested).
1065 if (subcase->number > 0) {
1066 if ((subcase->number - ctx->last) != 1) {
1068 "subcase %d completed out of order, last %d\n",
1069 subcase->number, ctx->last);
1071 ctx->last = subcase->number;
1075 ctx->last = subcase->number;
1077 /* succeed or fault in only one way? */
1078 if (status == subcase->expected)
1081 /* async unlink for cleanup? */
1082 else if (status != -ECONNRESET) {
1084 /* some faults are allowed, not required */
1085 if (subcase->expected > 0 && (
1086 ((status == -subcase->expected /* happened */
1087 || status == 0)))) /* didn't */
1089 /* sometimes more than one fault is allowed */
1090 else if (subcase->number == 12 && status == -EPIPE)
1093 ERROR(ctx->dev, "subtest %d error, status %d\n",
1094 subcase->number, status);
1097 /* unexpected status codes mean errors; ideally, in hardware */
1100 if (ctx->status == 0) {
1103 ctx->status = status;
1104 ERROR(ctx->dev, "control queue %02x.%02x, err %d, "
1105 "%d left, subcase %d, len %d/%d\n",
1106 reqp->bRequestType, reqp->bRequest,
1107 status, ctx->count, subcase->number,
1109 urb->transfer_buffer_length);
1111 /* FIXME this "unlink everything" exit route should
1112 * be a separate test case.
1115 /* unlink whatever's still pending */
1116 for (i = 1; i < ctx->param->sglen; i++) {
1117 struct urb *u = ctx->urb[
1118 (i + subcase->number)
1119 % ctx->param->sglen];
1121 if (u == urb || !u->dev)
1123 spin_unlock(&ctx->lock);
1124 status = usb_unlink_urb(u);
1125 spin_lock(&ctx->lock);
1132 ERROR(ctx->dev, "urb unlink --> %d\n",
1136 status = ctx->status;
1140 /* resubmit if we need to, else mark this as done */
1141 if ((status == 0) && (ctx->pending < ctx->count)) {
1142 status = usb_submit_urb(urb, GFP_ATOMIC);
1145 "can't resubmit ctrl %02x.%02x, err %d\n",
1146 reqp->bRequestType, reqp->bRequest, status);
1153 /* signal completion when nothing's queued */
1154 if (ctx->pending == 0)
1155 complete(&ctx->complete);
1156 spin_unlock(&ctx->lock);
1160 test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param)
1162 struct usb_device *udev = testdev_to_usbdev(dev);
1164 struct ctrl_ctx context;
1167 if (param->sglen == 0 || param->iterations > UINT_MAX / param->sglen)
1170 spin_lock_init(&context.lock);
1172 init_completion(&context.complete);
1173 context.count = param->sglen * param->iterations;
1174 context.pending = 0;
1175 context.status = -ENOMEM;
1176 context.param = param;
1179 /* allocate and init the urbs we'll queue.
1180 * as with bulk/intr sglists, sglen is the queue depth; it also
1181 * controls which subtests run (more tests than sglen) or rerun.
1183 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);
1186 for (i = 0; i < param->sglen; i++) {
1187 int pipe = usb_rcvctrlpipe(udev, 0);
1190 struct usb_ctrlrequest req;
1191 struct subcase *reqp;
1193 /* sign of this variable means:
1194 * -: tested code must return this (negative) error code
1195 * +: tested code may return this (negative too) error code
1199 /* requests here are mostly expected to succeed on any
1200 * device, but some are chosen to trigger protocol stalls
1203 memset(&req, 0, sizeof(req));
1204 req.bRequest = USB_REQ_GET_DESCRIPTOR;
1205 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
1207 switch (i % NUM_SUBCASES) {
1208 case 0: /* get device descriptor */
1209 req.wValue = cpu_to_le16(USB_DT_DEVICE << 8);
1210 len = sizeof(struct usb_device_descriptor);
1212 case 1: /* get first config descriptor (only) */
1213 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1214 len = sizeof(struct usb_config_descriptor);
1216 case 2: /* get altsetting (OFTEN STALLS) */
1217 req.bRequest = USB_REQ_GET_INTERFACE;
1218 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
1219 /* index = 0 means first interface */
1223 case 3: /* get interface status */
1224 req.bRequest = USB_REQ_GET_STATUS;
1225 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
1229 case 4: /* get device status */
1230 req.bRequest = USB_REQ_GET_STATUS;
1231 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
1234 case 5: /* get device qualifier (MAY STALL) */
1235 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
1236 len = sizeof(struct usb_qualifier_descriptor);
1237 if (udev->speed != USB_SPEED_HIGH)
1240 case 6: /* get first config descriptor, plus interface */
1241 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1242 len = sizeof(struct usb_config_descriptor);
1243 len += sizeof(struct usb_interface_descriptor);
1245 case 7: /* get interface descriptor (ALWAYS STALLS) */
1246 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
1247 /* interface == 0 */
1248 len = sizeof(struct usb_interface_descriptor);
1251 /* NOTE: two consecutive stalls in the queue here.
1252 * that tests fault recovery a bit more aggressively. */
1253 case 8: /* clear endpoint halt (MAY STALL) */
1254 req.bRequest = USB_REQ_CLEAR_FEATURE;
1255 req.bRequestType = USB_RECIP_ENDPOINT;
1256 /* wValue 0 == ep halt */
1257 /* wIndex 0 == ep0 (shouldn't halt!) */
1259 pipe = usb_sndctrlpipe(udev, 0);
1262 case 9: /* get endpoint status */
1263 req.bRequest = USB_REQ_GET_STATUS;
1264 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
1268 case 10: /* trigger short read (EREMOTEIO) */
1269 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1271 expected = -EREMOTEIO;
1273 /* NOTE: two consecutive _different_ faults in the queue. */
1274 case 11: /* get endpoint descriptor (ALWAYS STALLS) */
1275 req.wValue = cpu_to_le16(USB_DT_ENDPOINT << 8);
1277 len = sizeof(struct usb_interface_descriptor);
1280 /* NOTE: sometimes even a third fault in the queue! */
1281 case 12: /* get string 0 descriptor (MAY STALL) */
1282 req.wValue = cpu_to_le16(USB_DT_STRING << 8);
1283 /* string == 0, for language IDs */
1284 len = sizeof(struct usb_interface_descriptor);
1285 /* may succeed when > 4 languages */
1286 expected = EREMOTEIO; /* or EPIPE, if no strings */
1288 case 13: /* short read, resembling case 10 */
1289 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1290 /* last data packet "should" be DATA1, not DATA0 */
1291 if (udev->speed == USB_SPEED_SUPER)
1294 len = 1024 - udev->descriptor.bMaxPacketSize0;
1295 expected = -EREMOTEIO;
1297 case 14: /* short read; try to fill the last packet */
1298 req.wValue = cpu_to_le16((USB_DT_DEVICE << 8) | 0);
1299 /* device descriptor size == 18 bytes */
1300 len = udev->descriptor.bMaxPacketSize0;
1301 if (udev->speed == USB_SPEED_SUPER)
1311 expected = -EREMOTEIO;
1314 req.wValue = cpu_to_le16(USB_DT_BOS << 8);
1316 len = le16_to_cpu(udev->bos->desc->wTotalLength);
1318 len = sizeof(struct usb_bos_descriptor);
1319 if (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0201)
1323 ERROR(dev, "bogus number of ctrl queue testcases!\n");
1324 context.status = -EINVAL;
1327 req.wLength = cpu_to_le16(len);
1328 urb[i] = u = simple_alloc_urb(udev, pipe, len, 0);
1332 reqp = kmalloc(sizeof(*reqp), GFP_KERNEL);
1336 reqp->number = i % NUM_SUBCASES;
1337 reqp->expected = expected;
1338 u->setup_packet = (char *) &reqp->setup;
1340 u->context = &context;
1341 u->complete = ctrl_complete;
1344 /* queue the urbs */
1346 spin_lock_irq(&context.lock);
1347 for (i = 0; i < param->sglen; i++) {
1348 context.status = usb_submit_urb(urb[i], GFP_ATOMIC);
1349 if (context.status != 0) {
1350 ERROR(dev, "can't submit urb[%d], status %d\n",
1352 context.count = context.pending;
1357 spin_unlock_irq(&context.lock);
1359 /* FIXME set timer and time out; provide a disconnect hook */
1361 /* wait for the last one to complete */
1362 if (context.pending > 0)
1363 wait_for_completion(&context.complete);
1366 for (i = 0; i < param->sglen; i++) {
1370 kfree(urb[i]->setup_packet);
1371 simple_free_urb(urb[i]);
1374 return context.status;
1379 /*-------------------------------------------------------------------------*/
1381 static void unlink1_callback(struct urb *urb)
1383 int status = urb->status;
1385 /* we "know" -EPIPE (stall) never happens */
1387 status = usb_submit_urb(urb, GFP_ATOMIC);
1389 urb->status = status;
1390 complete(urb->context);
1394 static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async)
1397 struct completion completion;
1400 init_completion(&completion);
1401 urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size, 0);
1404 urb->context = &completion;
1405 urb->complete = unlink1_callback;
1407 if (usb_pipeout(urb->pipe)) {
1408 simple_fill_buf(urb);
1409 urb->transfer_flags |= URB_ZERO_PACKET;
1412 /* keep the endpoint busy. there are lots of hc/hcd-internal
1413 * states, and testing should get to all of them over time.
1415 * FIXME want additional tests for when endpoint is STALLing
1416 * due to errors, or is just NAKing requests.
1418 retval = usb_submit_urb(urb, GFP_KERNEL);
1420 dev_err(&dev->intf->dev, "submit fail %d\n", retval);
1424 /* unlinking that should always work. variable delay tests more
1425 * hcd states and code paths, even with little other system load.
1427 msleep(jiffies % (2 * INTERRUPT_RATE));
1429 while (!completion_done(&completion)) {
1430 retval = usb_unlink_urb(urb);
1432 if (retval == 0 && usb_pipein(urb->pipe))
1433 retval = simple_check_buf(dev, urb);
1438 /* we can't unlink urbs while they're completing
1439 * or if they've completed, and we haven't
1440 * resubmitted. "normal" drivers would prevent
1441 * resubmission, but since we're testing unlink
1444 ERROR(dev, "unlink retry\n");
1451 dev_err(&dev->intf->dev,
1452 "unlink fail %d\n", retval);
1461 wait_for_completion(&completion);
1462 retval = urb->status;
1463 simple_free_urb(urb);
1466 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1468 return (retval == -ENOENT || retval == -EPERM) ?
1472 static int unlink_simple(struct usbtest_dev *dev, int pipe, int len)
1476 /* test sync and async paths */
1477 retval = unlink1(dev, pipe, len, 1);
1479 retval = unlink1(dev, pipe, len, 0);
1483 /*-------------------------------------------------------------------------*/
1486 struct completion complete;
1493 static void unlink_queued_callback(struct urb *urb)
1495 int status = urb->status;
1496 struct queued_ctx *ctx = urb->context;
1500 if (urb == ctx->urbs[ctx->num - 4] || urb == ctx->urbs[ctx->num - 2]) {
1501 if (status == -ECONNRESET)
1503 /* What error should we report if the URB completed normally? */
1506 ctx->status = status;
1509 if (atomic_dec_and_test(&ctx->pending))
1510 complete(&ctx->complete);
1513 static int unlink_queued(struct usbtest_dev *dev, int pipe, unsigned num,
1516 struct queued_ctx ctx;
1517 struct usb_device *udev = testdev_to_usbdev(dev);
1521 int retval = -ENOMEM;
1523 init_completion(&ctx.complete);
1524 atomic_set(&ctx.pending, 1); /* One more than the actual value */
1528 buf = usb_alloc_coherent(udev, size, GFP_KERNEL, &buf_dma);
1531 memset(buf, 0, size);
1533 /* Allocate and init the urbs we'll queue */
1534 ctx.urbs = kcalloc(num, sizeof(struct urb *), GFP_KERNEL);
1537 for (i = 0; i < num; i++) {
1538 ctx.urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
1541 usb_fill_bulk_urb(ctx.urbs[i], udev, pipe, buf, size,
1542 unlink_queued_callback, &ctx);
1543 ctx.urbs[i]->transfer_dma = buf_dma;
1544 ctx.urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1546 if (usb_pipeout(ctx.urbs[i]->pipe)) {
1547 simple_fill_buf(ctx.urbs[i]);
1548 ctx.urbs[i]->transfer_flags |= URB_ZERO_PACKET;
1552 /* Submit all the URBs and then unlink URBs num - 4 and num - 2. */
1553 for (i = 0; i < num; i++) {
1554 atomic_inc(&ctx.pending);
1555 retval = usb_submit_urb(ctx.urbs[i], GFP_KERNEL);
1557 dev_err(&dev->intf->dev, "submit urbs[%d] fail %d\n",
1559 atomic_dec(&ctx.pending);
1560 ctx.status = retval;
1565 usb_unlink_urb(ctx.urbs[num - 4]);
1566 usb_unlink_urb(ctx.urbs[num - 2]);
1569 usb_unlink_urb(ctx.urbs[i]);
1572 if (atomic_dec_and_test(&ctx.pending)) /* The extra count */
1573 complete(&ctx.complete);
1574 wait_for_completion(&ctx.complete);
1575 retval = ctx.status;
1578 for (i = 0; i < num; i++)
1579 usb_free_urb(ctx.urbs[i]);
1582 usb_free_coherent(udev, size, buf, buf_dma);
1586 /*-------------------------------------------------------------------------*/
1588 static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1593 /* shouldn't look or act halted */
1594 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1596 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
1601 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status);
1604 retval = simple_io(tdev, urb, 1, 0, 0, __func__);
1610 static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1615 /* should look and act halted */
1616 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1618 ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
1623 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status);
1626 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__);
1627 if (retval != -EPIPE)
1629 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted");
1630 if (retval != -EPIPE)
1635 static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
1639 /* shouldn't look or act halted now */
1640 retval = verify_not_halted(tdev, ep, urb);
1644 /* set halt (protocol test only), verify it worked */
1645 retval = usb_control_msg(urb->dev, usb_sndctrlpipe(urb->dev, 0),
1646 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1647 USB_ENDPOINT_HALT, ep,
1648 NULL, 0, USB_CTRL_SET_TIMEOUT);
1650 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval);
1653 retval = verify_halted(tdev, ep, urb);
1657 /* clear halt anyways, else further tests will fail */
1658 ret = usb_clear_halt(urb->dev, urb->pipe);
1660 ERROR(tdev, "ep %02x couldn't clear halt, %d\n",
1666 /* clear halt (tests API + protocol), verify it worked */
1667 retval = usb_clear_halt(urb->dev, urb->pipe);
1669 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval);
1672 retval = verify_not_halted(tdev, ep, urb);
1676 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1681 static int halt_simple(struct usbtest_dev *dev)
1686 struct usb_device *udev = testdev_to_usbdev(dev);
1688 if (udev->speed == USB_SPEED_SUPER)
1689 urb = simple_alloc_urb(udev, 0, 1024, 0);
1691 urb = simple_alloc_urb(udev, 0, 512, 0);
1696 ep = usb_pipeendpoint(dev->in_pipe) | USB_DIR_IN;
1697 urb->pipe = dev->in_pipe;
1698 retval = test_halt(dev, ep, urb);
1703 if (dev->out_pipe) {
1704 ep = usb_pipeendpoint(dev->out_pipe);
1705 urb->pipe = dev->out_pipe;
1706 retval = test_halt(dev, ep, urb);
1709 simple_free_urb(urb);
1713 /*-------------------------------------------------------------------------*/
1715 /* Control OUT tests use the vendor control requests from Intel's
1716 * USB 2.0 compliance test device: write a buffer, read it back.
1718 * Intel's spec only _requires_ that it work for one packet, which
1719 * is pretty weak. Some HCDs place limits here; most devices will
1720 * need to be able to handle more than one OUT data packet. We'll
1721 * try whatever we're told to try.
1723 static int ctrl_out(struct usbtest_dev *dev,
1724 unsigned count, unsigned length, unsigned vary, unsigned offset)
1730 struct usb_device *udev;
1732 if (length < 1 || length > 0xffff || vary >= length)
1735 buf = kmalloc(length + offset, GFP_KERNEL);
1740 udev = testdev_to_usbdev(dev);
1744 /* NOTE: hardware might well act differently if we pushed it
1745 * with lots back-to-back queued requests.
1747 for (i = 0; i < count; i++) {
1748 /* write patterned data */
1749 for (j = 0; j < len; j++)
1750 buf[j] = (u8)(i + j);
1751 retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1752 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1753 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1754 if (retval != len) {
1757 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n",
1764 /* read it back -- assuming nothing intervened!! */
1765 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
1766 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1767 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1768 if (retval != len) {
1771 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n",
1778 /* fail if we can't verify */
1779 for (j = 0; j < len; j++) {
1780 if (buf[j] != (u8)(i + j)) {
1781 ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
1782 j, buf[j], (u8)(i + j));
1794 /* [real world] the "zero bytes IN" case isn't really used.
1795 * hardware can easily trip up in this weird case, since its
1796 * status stage is IN, not OUT like other ep0in transfers.
1799 len = realworld ? 1 : 0;
1803 ERROR(dev, "ctrl_out %s failed, code %d, count %d\n",
1806 kfree(buf - offset);
1810 /*-------------------------------------------------------------------------*/
1812 /* ISO/BULK tests ... mimics common usage
1813 * - buffer length is split into N packets (mostly maxpacket sized)
1814 * - multi-buffers according to sglen
1817 struct transfer_context {
1821 struct completion done;
1823 unsigned long errors;
1824 unsigned long packet_count;
1825 struct usbtest_dev *dev;
1829 static void complicated_callback(struct urb *urb)
1831 struct transfer_context *ctx = urb->context;
1833 spin_lock(&ctx->lock);
1836 ctx->packet_count += urb->number_of_packets;
1837 if (urb->error_count > 0)
1838 ctx->errors += urb->error_count;
1839 else if (urb->status != 0)
1840 ctx->errors += (ctx->is_iso ? urb->number_of_packets : 1);
1841 else if (urb->actual_length != urb->transfer_buffer_length)
1843 else if (check_guard_bytes(ctx->dev, urb) != 0)
1846 if (urb->status == 0 && ctx->count > (ctx->pending - 1)
1847 && !ctx->submit_error) {
1848 int status = usb_submit_urb(urb, GFP_ATOMIC);
1853 dev_err(&ctx->dev->intf->dev,
1854 "iso resubmit err %d\n",
1857 case -ENODEV: /* disconnected */
1858 case -ESHUTDOWN: /* endpoint disabled */
1859 ctx->submit_error = 1;
1865 if (ctx->pending == 0) {
1867 dev_err(&ctx->dev->intf->dev,
1868 "iso test, %lu errors out of %lu\n",
1869 ctx->errors, ctx->packet_count);
1870 complete(&ctx->done);
1873 spin_unlock(&ctx->lock);
1876 static struct urb *iso_alloc_urb(
1877 struct usb_device *udev,
1879 struct usb_endpoint_descriptor *desc,
1885 unsigned i, maxp, packets;
1887 if (bytes < 0 || !desc)
1889 maxp = 0x7ff & usb_endpoint_maxp(desc);
1890 maxp *= 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11));
1891 packets = DIV_ROUND_UP(bytes, maxp);
1893 urb = usb_alloc_urb(packets, GFP_KERNEL);
1899 urb->number_of_packets = packets;
1900 urb->transfer_buffer_length = bytes;
1901 urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset,
1903 &urb->transfer_dma);
1904 if (!urb->transfer_buffer) {
1909 memset(urb->transfer_buffer, GUARD_BYTE, offset);
1910 urb->transfer_buffer += offset;
1911 urb->transfer_dma += offset;
1913 /* For inbound transfers use guard byte so that test fails if
1914 data not correctly copied */
1915 memset(urb->transfer_buffer,
1916 usb_pipein(urb->pipe) ? GUARD_BYTE : 0,
1919 for (i = 0; i < packets; i++) {
1920 /* here, only the last packet will be short */
1921 urb->iso_frame_desc[i].length = min((unsigned) bytes, maxp);
1922 bytes -= urb->iso_frame_desc[i].length;
1924 urb->iso_frame_desc[i].offset = maxp * i;
1927 urb->complete = complicated_callback;
1928 /* urb->context = SET BY CALLER */
1929 urb->interval = 1 << (desc->bInterval - 1);
1930 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1935 test_queue(struct usbtest_dev *dev, struct usbtest_param *param,
1936 int pipe, struct usb_endpoint_descriptor *desc, unsigned offset)
1938 struct transfer_context context;
1939 struct usb_device *udev;
1941 unsigned long packets = 0;
1943 struct urb *urbs[param->sglen];
1945 memset(&context, 0, sizeof(context));
1946 context.count = param->iterations * param->sglen;
1948 context.is_iso = !!desc;
1949 init_completion(&context.done);
1950 spin_lock_init(&context.lock);
1952 udev = testdev_to_usbdev(dev);
1954 for (i = 0; i < param->sglen; i++) {
1956 urbs[i] = iso_alloc_urb(udev, pipe, desc,
1957 param->length, offset);
1959 urbs[i] = complicated_alloc_urb(udev, pipe,
1966 packets += urbs[i]->number_of_packets;
1967 urbs[i]->context = &context;
1969 packets *= param->iterations;
1971 if (context.is_iso) {
1972 dev_info(&dev->intf->dev,
1973 "iso period %d %sframes, wMaxPacket %d, transactions: %d\n",
1974 1 << (desc->bInterval - 1),
1975 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1976 usb_endpoint_maxp(desc) & 0x7ff,
1977 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11)));
1979 dev_info(&dev->intf->dev,
1980 "total %lu msec (%lu packets)\n",
1981 (packets * (1 << (desc->bInterval - 1)))
1982 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
1986 spin_lock_irq(&context.lock);
1987 for (i = 0; i < param->sglen; i++) {
1989 status = usb_submit_urb(urbs[i], GFP_ATOMIC);
1991 ERROR(dev, "submit iso[%d], error %d\n", i, status);
1993 spin_unlock_irq(&context.lock);
1997 simple_free_urb(urbs[i]);
2000 context.submit_error = 1;
2004 spin_unlock_irq(&context.lock);
2006 wait_for_completion(&context.done);
2008 for (i = 0; i < param->sglen; i++) {
2010 simple_free_urb(urbs[i]);
2013 * Isochronous transfers are expected to fail sometimes. As an
2014 * arbitrary limit, we will report an error if any submissions
2015 * fail or if the transfer failure rate is > 10%.
2019 else if (context.submit_error)
2021 else if (context.errors >
2022 (context.is_iso ? context.packet_count / 10 : 0))
2027 for (i = 0; i < param->sglen; i++) {
2029 simple_free_urb(urbs[i]);
2034 static int test_unaligned_bulk(
2035 struct usbtest_dev *tdev,
2039 unsigned transfer_flags,
2043 struct urb *urb = usbtest_alloc_urb(testdev_to_usbdev(tdev),
2044 pipe, length, transfer_flags, 1, 0, simple_callback);
2049 retval = simple_io(tdev, urb, iterations, 0, 0, label);
2050 simple_free_urb(urb);
2054 /*-------------------------------------------------------------------------*/
2056 /* We only have this one interface to user space, through usbfs.
2057 * User mode code can scan usbfs to find N different devices (maybe on
2058 * different busses) to use when testing, and allocate one thread per
2059 * test. So discovery is simplified, and we have no device naming issues.
2061 * Don't use these only as stress/load tests. Use them along with with
2062 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
2063 * video capture, and so on. Run different tests at different times, in
2064 * different sequences. Nothing here should interact with other devices,
2065 * except indirectly by consuming USB bandwidth and CPU resources for test
2066 * threads and request completion. But the only way to know that for sure
2067 * is to test when HC queues are in use by many devices.
2069 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
2070 * it locks out usbcore in certain code paths. Notably, if you disconnect
2071 * the device-under-test, hub_wq will wait block forever waiting for the
2072 * ioctl to complete ... so that usb_disconnect() can abort the pending
2073 * urbs and then call usbtest_disconnect(). To abort a test, you're best
2074 * off just killing the userspace task and waiting for it to exit.
2078 usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
2080 struct usbtest_dev *dev = usb_get_intfdata(intf);
2081 struct usb_device *udev = testdev_to_usbdev(dev);
2082 struct usbtest_param *param = buf;
2083 int retval = -EOPNOTSUPP;
2085 struct scatterlist *sg;
2086 struct usb_sg_request req;
2087 struct timeval start;
2090 /* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */
2092 pattern = mod_pattern;
2094 if (code != USBTEST_REQUEST)
2097 if (param->iterations <= 0)
2100 if (param->sglen > MAX_SGLEN)
2103 if (mutex_lock_interruptible(&dev->lock))
2104 return -ERESTARTSYS;
2106 /* FIXME: What if a system sleep starts while a test is running? */
2108 /* some devices, like ez-usb default devices, need a non-default
2109 * altsetting to have any active endpoints. some tests change
2110 * altsettings; force a default so most tests don't need to check.
2112 if (dev->info->alt >= 0) {
2115 if (intf->altsetting->desc.bInterfaceNumber) {
2116 mutex_unlock(&dev->lock);
2119 res = set_altsetting(dev, dev->info->alt);
2122 "set altsetting to %d failed, %d\n",
2123 dev->info->alt, res);
2124 mutex_unlock(&dev->lock);
2130 * Just a bunch of test cases that every HCD is expected to handle.
2132 * Some may need specific firmware, though it'd be good to have
2133 * one firmware image to handle all the test cases.
2135 * FIXME add more tests! cancel requests, verify the data, control
2136 * queueing, concurrent read+write threads, and so on.
2138 do_gettimeofday(&start);
2139 switch (param->test_num) {
2142 dev_info(&intf->dev, "TEST 0: NOP\n");
2146 /* Simple non-queued bulk I/O tests */
2148 if (dev->out_pipe == 0)
2150 dev_info(&intf->dev,
2151 "TEST 1: write %d bytes %u times\n",
2152 param->length, param->iterations);
2153 urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);
2158 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2159 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");
2160 simple_free_urb(urb);
2163 if (dev->in_pipe == 0)
2165 dev_info(&intf->dev,
2166 "TEST 2: read %d bytes %u times\n",
2167 param->length, param->iterations);
2168 urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);
2173 /* FIRMWARE: bulk source (maybe generates short writes) */
2174 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");
2175 simple_free_urb(urb);
2178 if (dev->out_pipe == 0 || param->vary == 0)
2180 dev_info(&intf->dev,
2181 "TEST 3: write/%d 0..%d bytes %u times\n",
2182 param->vary, param->length, param->iterations);
2183 urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);
2188 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2189 retval = simple_io(dev, urb, param->iterations, param->vary,
2191 simple_free_urb(urb);
2194 if (dev->in_pipe == 0 || param->vary == 0)
2196 dev_info(&intf->dev,
2197 "TEST 4: read/%d 0..%d bytes %u times\n",
2198 param->vary, param->length, param->iterations);
2199 urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);
2204 /* FIRMWARE: bulk source (maybe generates short writes) */
2205 retval = simple_io(dev, urb, param->iterations, param->vary,
2207 simple_free_urb(urb);
2210 /* Queued bulk I/O tests */
2212 if (dev->out_pipe == 0 || param->sglen == 0)
2214 dev_info(&intf->dev,
2215 "TEST 5: write %d sglists %d entries of %d bytes\n",
2217 param->sglen, param->length);
2218 sg = alloc_sglist(param->sglen, param->length,
2219 0, dev, dev->out_pipe);
2224 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2225 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
2226 &req, sg, param->sglen);
2227 free_sglist(sg, param->sglen);
2231 if (dev->in_pipe == 0 || param->sglen == 0)
2233 dev_info(&intf->dev,
2234 "TEST 6: read %d sglists %d entries of %d bytes\n",
2236 param->sglen, param->length);
2237 sg = alloc_sglist(param->sglen, param->length,
2238 0, dev, dev->in_pipe);
2243 /* FIRMWARE: bulk source (maybe generates short writes) */
2244 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
2245 &req, sg, param->sglen);
2246 free_sglist(sg, param->sglen);
2249 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
2251 dev_info(&intf->dev,
2252 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
2253 param->vary, param->iterations,
2254 param->sglen, param->length);
2255 sg = alloc_sglist(param->sglen, param->length,
2256 param->vary, dev, dev->out_pipe);
2261 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2262 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
2263 &req, sg, param->sglen);
2264 free_sglist(sg, param->sglen);
2267 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
2269 dev_info(&intf->dev,
2270 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
2271 param->vary, param->iterations,
2272 param->sglen, param->length);
2273 sg = alloc_sglist(param->sglen, param->length,
2274 param->vary, dev, dev->in_pipe);
2279 /* FIRMWARE: bulk source (maybe generates short writes) */
2280 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
2281 &req, sg, param->sglen);
2282 free_sglist(sg, param->sglen);
2285 /* non-queued sanity tests for control (chapter 9 subset) */
2288 dev_info(&intf->dev,
2289 "TEST 9: ch9 (subset) control tests, %d times\n",
2291 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2292 retval = ch9_postconfig(dev);
2294 dev_err(&intf->dev, "ch9 subset failed, "
2295 "iterations left %d\n", i);
2298 /* queued control messaging */
2301 dev_info(&intf->dev,
2302 "TEST 10: queue %d control calls, %d times\n",
2305 retval = test_ctrl_queue(dev, param);
2308 /* simple non-queued unlinks (ring with one urb) */
2310 if (dev->in_pipe == 0 || !param->length)
2313 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n",
2314 param->iterations, param->length);
2315 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2316 retval = unlink_simple(dev, dev->in_pipe,
2319 dev_err(&intf->dev, "unlink reads failed %d, "
2320 "iterations left %d\n", retval, i);
2323 if (dev->out_pipe == 0 || !param->length)
2326 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n",
2327 param->iterations, param->length);
2328 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2329 retval = unlink_simple(dev, dev->out_pipe,
2332 dev_err(&intf->dev, "unlink writes failed %d, "
2333 "iterations left %d\n", retval, i);
2338 if (dev->out_pipe == 0 && dev->in_pipe == 0)
2341 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n",
2343 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2344 retval = halt_simple(dev);
2347 ERROR(dev, "halts failed, iterations left %d\n", i);
2350 /* control write tests */
2352 if (!dev->info->ctrl_out)
2354 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
2356 realworld ? 1 : 0, param->length,
2358 retval = ctrl_out(dev, param->iterations,
2359 param->length, param->vary, 0);
2362 /* iso write tests */
2364 if (dev->out_iso_pipe == 0 || param->sglen == 0)
2366 dev_info(&intf->dev,
2367 "TEST 15: write %d iso, %d entries of %d bytes\n",
2369 param->sglen, param->length);
2370 /* FIRMWARE: iso sink */
2371 retval = test_queue(dev, param,
2372 dev->out_iso_pipe, dev->iso_out, 0);
2375 /* iso read tests */
2377 if (dev->in_iso_pipe == 0 || param->sglen == 0)
2379 dev_info(&intf->dev,
2380 "TEST 16: read %d iso, %d entries of %d bytes\n",
2382 param->sglen, param->length);
2383 /* FIRMWARE: iso source */
2384 retval = test_queue(dev, param,
2385 dev->in_iso_pipe, dev->iso_in, 0);
2388 /* FIXME scatterlist cancel (needs helper thread) */
2390 /* Tests for bulk I/O using DMA mapping by core and odd address */
2392 if (dev->out_pipe == 0)
2394 dev_info(&intf->dev,
2395 "TEST 17: write odd addr %d bytes %u times core map\n",
2396 param->length, param->iterations);
2398 retval = test_unaligned_bulk(
2400 param->length, param->iterations,
2405 if (dev->in_pipe == 0)
2407 dev_info(&intf->dev,
2408 "TEST 18: read odd addr %d bytes %u times core map\n",
2409 param->length, param->iterations);
2411 retval = test_unaligned_bulk(
2413 param->length, param->iterations,
2417 /* Tests for bulk I/O using premapped coherent buffer and odd address */
2419 if (dev->out_pipe == 0)
2421 dev_info(&intf->dev,
2422 "TEST 19: write odd addr %d bytes %u times premapped\n",
2423 param->length, param->iterations);
2425 retval = test_unaligned_bulk(
2427 param->length, param->iterations,
2428 URB_NO_TRANSFER_DMA_MAP, "test19");
2432 if (dev->in_pipe == 0)
2434 dev_info(&intf->dev,
2435 "TEST 20: read odd addr %d bytes %u times premapped\n",
2436 param->length, param->iterations);
2438 retval = test_unaligned_bulk(
2440 param->length, param->iterations,
2441 URB_NO_TRANSFER_DMA_MAP, "test20");
2444 /* control write tests with unaligned buffer */
2446 if (!dev->info->ctrl_out)
2448 dev_info(&intf->dev,
2449 "TEST 21: %d ep0out odd addr, %d..%d vary %d\n",
2451 realworld ? 1 : 0, param->length,
2453 retval = ctrl_out(dev, param->iterations,
2454 param->length, param->vary, 1);
2457 /* unaligned iso tests */
2459 if (dev->out_iso_pipe == 0 || param->sglen == 0)
2461 dev_info(&intf->dev,
2462 "TEST 22: write %d iso odd, %d entries of %d bytes\n",
2464 param->sglen, param->length);
2465 retval = test_queue(dev, param,
2466 dev->out_iso_pipe, dev->iso_out, 1);
2470 if (dev->in_iso_pipe == 0 || param->sglen == 0)
2472 dev_info(&intf->dev,
2473 "TEST 23: read %d iso odd, %d entries of %d bytes\n",
2475 param->sglen, param->length);
2476 retval = test_queue(dev, param,
2477 dev->in_iso_pipe, dev->iso_in, 1);
2480 /* unlink URBs from a bulk-OUT queue */
2482 if (dev->out_pipe == 0 || !param->length || param->sglen < 4)
2485 dev_info(&intf->dev, "TEST 24: unlink from %d queues of "
2486 "%d %d-byte writes\n",
2487 param->iterations, param->sglen, param->length);
2488 for (i = param->iterations; retval == 0 && i > 0; --i) {
2489 retval = unlink_queued(dev, dev->out_pipe,
2490 param->sglen, param->length);
2493 "unlink queued writes failed %d, "
2494 "iterations left %d\n", retval, i);
2500 /* Simple non-queued interrupt I/O tests */
2502 if (dev->out_int_pipe == 0)
2504 dev_info(&intf->dev,
2505 "TEST 25: write %d bytes %u times\n",
2506 param->length, param->iterations);
2507 urb = simple_alloc_urb(udev, dev->out_int_pipe, param->length,
2508 dev->int_out->bInterval);
2513 /* FIRMWARE: interrupt sink (maybe accepts short writes) */
2514 retval = simple_io(dev, urb, param->iterations, 0, 0, "test25");
2515 simple_free_urb(urb);
2518 if (dev->in_int_pipe == 0)
2520 dev_info(&intf->dev,
2521 "TEST 26: read %d bytes %u times\n",
2522 param->length, param->iterations);
2523 urb = simple_alloc_urb(udev, dev->in_int_pipe, param->length,
2524 dev->int_in->bInterval);
2529 /* FIRMWARE: interrupt source (maybe generates short writes) */
2530 retval = simple_io(dev, urb, param->iterations, 0, 0, "test26");
2531 simple_free_urb(urb);
2534 /* We do performance test, so ignore data compare */
2535 if (dev->out_pipe == 0 || param->sglen == 0 || pattern != 0)
2537 dev_info(&intf->dev,
2538 "TEST 27: bulk write %dMbytes\n", (param->iterations *
2539 param->sglen * param->length) / (1024 * 1024));
2540 retval = test_queue(dev, param,
2541 dev->out_pipe, NULL, 0);
2544 if (dev->in_pipe == 0 || param->sglen == 0 || pattern != 0)
2546 dev_info(&intf->dev,
2547 "TEST 28: bulk read %dMbytes\n", (param->iterations *
2548 param->sglen * param->length) / (1024 * 1024));
2549 retval = test_queue(dev, param,
2550 dev->in_pipe, NULL, 0);
2553 do_gettimeofday(¶m->duration);
2554 param->duration.tv_sec -= start.tv_sec;
2555 param->duration.tv_usec -= start.tv_usec;
2556 if (param->duration.tv_usec < 0) {
2557 param->duration.tv_usec += 1000 * 1000;
2558 param->duration.tv_sec -= 1;
2560 mutex_unlock(&dev->lock);
2564 /*-------------------------------------------------------------------------*/
2566 static unsigned force_interrupt;
2567 module_param(force_interrupt, uint, 0);
2568 MODULE_PARM_DESC(force_interrupt, "0 = test default; else interrupt");
2571 static unsigned short vendor;
2572 module_param(vendor, ushort, 0);
2573 MODULE_PARM_DESC(vendor, "vendor code (from usb-if)");
2575 static unsigned short product;
2576 module_param(product, ushort, 0);
2577 MODULE_PARM_DESC(product, "product code (from vendor)");
2581 usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id)
2583 struct usb_device *udev;
2584 struct usbtest_dev *dev;
2585 struct usbtest_info *info;
2586 char *rtest, *wtest;
2587 char *irtest, *iwtest;
2588 char *intrtest, *intwtest;
2590 udev = interface_to_usbdev(intf);
2593 /* specify devices by module parameters? */
2594 if (id->match_flags == 0) {
2595 /* vendor match required, product match optional */
2596 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
2598 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
2600 dev_info(&intf->dev, "matched module params, "
2601 "vend=0x%04x prod=0x%04x\n",
2602 le16_to_cpu(udev->descriptor.idVendor),
2603 le16_to_cpu(udev->descriptor.idProduct));
2607 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
2610 info = (struct usbtest_info *) id->driver_info;
2612 mutex_init(&dev->lock);
2616 /* cacheline-aligned scratch for i/o */
2617 dev->buf = kmalloc(TBUF_SIZE, GFP_KERNEL);
2618 if (dev->buf == NULL) {
2623 /* NOTE this doesn't yet test the handful of difference that are
2624 * visible with high speed interrupts: bigger maxpacket (1K) and
2625 * "high bandwidth" modes (up to 3 packets/uframe).
2628 irtest = iwtest = "";
2629 intrtest = intwtest = "";
2630 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
2632 dev->in_pipe = usb_rcvintpipe(udev, info->ep_in);
2636 dev->out_pipe = usb_sndintpipe(udev, info->ep_out);
2637 wtest = " intr-out";
2640 if (override_alt >= 0 || info->autoconf) {
2643 status = get_endpoints(dev, intf);
2645 WARNING(dev, "couldn't get endpoints, %d\n",
2651 /* may find bulk or ISO pipes */
2654 dev->in_pipe = usb_rcvbulkpipe(udev,
2657 dev->out_pipe = usb_sndbulkpipe(udev,
2663 wtest = " bulk-out";
2664 if (dev->in_iso_pipe)
2666 if (dev->out_iso_pipe)
2667 iwtest = " iso-out";
2668 if (dev->in_int_pipe)
2669 intrtest = " int-in";
2670 if (dev->out_int_pipe)
2671 intwtest = " int-out";
2674 usb_set_intfdata(intf, dev);
2675 dev_info(&intf->dev, "%s\n", info->name);
2676 dev_info(&intf->dev, "%s {control%s%s%s%s%s%s%s} tests%s\n",
2677 usb_speed_string(udev->speed),
2678 info->ctrl_out ? " in/out" : "",
2682 info->alt >= 0 ? " (+alt)" : "");
2686 static int usbtest_suspend(struct usb_interface *intf, pm_message_t message)
2691 static int usbtest_resume(struct usb_interface *intf)
2697 static void usbtest_disconnect(struct usb_interface *intf)
2699 struct usbtest_dev *dev = usb_get_intfdata(intf);
2701 usb_set_intfdata(intf, NULL);
2702 dev_dbg(&intf->dev, "disconnect\n");
2706 /* Basic testing only needs a device that can source or sink bulk traffic.
2707 * Any device can test control transfers (default with GENERIC binding).
2709 * Several entries work with the default EP0 implementation that's built
2710 * into EZ-USB chips. There's a default vendor ID which can be overridden
2711 * by (very) small config EEPROMS, but otherwise all these devices act
2712 * identically until firmware is loaded: only EP0 works. It turns out
2713 * to be easy to make other endpoints work, without modifying that EP0
2714 * behavior. For now, we expect that kind of firmware.
2717 /* an21xx or fx versions of ez-usb */
2718 static struct usbtest_info ez1_info = {
2719 .name = "EZ-USB device",
2725 /* fx2 version of ez-usb */
2726 static struct usbtest_info ez2_info = {
2727 .name = "FX2 device",
2733 /* ezusb family device with dedicated usb test firmware,
2735 static struct usbtest_info fw_info = {
2736 .name = "usb test device",
2740 .autoconf = 1, /* iso and ctrl_out need autoconf */
2742 .iso = 1, /* iso_ep's are #8 in/out */
2745 /* peripheral running Linux and 'zero.c' test firmware, or
2746 * its user-mode cousin. different versions of this use
2747 * different hardware with the same vendor/product codes.
2748 * host side MUST rely on the endpoint descriptors.
2750 static struct usbtest_info gz_info = {
2751 .name = "Linux gadget zero",
2759 static struct usbtest_info um_info = {
2760 .name = "Linux user mode test driver",
2765 static struct usbtest_info um2_info = {
2766 .name = "Linux user mode ISO test driver",
2773 /* this is a nice source of high speed bulk data;
2774 * uses an FX2, with firmware provided in the device
2776 static struct usbtest_info ibot2_info = {
2777 .name = "iBOT2 webcam",
2784 /* we can use any device to test control traffic */
2785 static struct usbtest_info generic_info = {
2786 .name = "Generic USB device",
2792 static const struct usb_device_id id_table[] = {
2794 /*-------------------------------------------------------------*/
2796 /* EZ-USB devices which download firmware to replace (or in our
2797 * case augment) the default device implementation.
2800 /* generic EZ-USB FX controller */
2801 { USB_DEVICE(0x0547, 0x2235),
2802 .driver_info = (unsigned long) &ez1_info,
2805 /* CY3671 development board with EZ-USB FX */
2806 { USB_DEVICE(0x0547, 0x0080),
2807 .driver_info = (unsigned long) &ez1_info,
2810 /* generic EZ-USB FX2 controller (or development board) */
2811 { USB_DEVICE(0x04b4, 0x8613),
2812 .driver_info = (unsigned long) &ez2_info,
2815 /* re-enumerated usb test device firmware */
2816 { USB_DEVICE(0xfff0, 0xfff0),
2817 .driver_info = (unsigned long) &fw_info,
2820 /* "Gadget Zero" firmware runs under Linux */
2821 { USB_DEVICE(0x0525, 0xa4a0),
2822 .driver_info = (unsigned long) &gz_info,
2825 /* so does a user-mode variant */
2826 { USB_DEVICE(0x0525, 0xa4a4),
2827 .driver_info = (unsigned long) &um_info,
2830 /* ... and a user-mode variant that talks iso */
2831 { USB_DEVICE(0x0525, 0xa4a3),
2832 .driver_info = (unsigned long) &um2_info,
2836 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2837 /* this does not coexist with the real Keyspan 19qi driver! */
2838 { USB_DEVICE(0x06cd, 0x010b),
2839 .driver_info = (unsigned long) &ez1_info,
2843 /*-------------------------------------------------------------*/
2846 /* iBOT2 makes a nice source of high speed bulk-in data */
2847 /* this does not coexist with a real iBOT2 driver! */
2848 { USB_DEVICE(0x0b62, 0x0059),
2849 .driver_info = (unsigned long) &ibot2_info,
2853 /*-------------------------------------------------------------*/
2856 /* module params can specify devices to use for control tests */
2857 { .driver_info = (unsigned long) &generic_info, },
2860 /*-------------------------------------------------------------*/
2864 MODULE_DEVICE_TABLE(usb, id_table);
2866 static struct usb_driver usbtest_driver = {
2868 .id_table = id_table,
2869 .probe = usbtest_probe,
2870 .unlocked_ioctl = usbtest_ioctl,
2871 .disconnect = usbtest_disconnect,
2872 .suspend = usbtest_suspend,
2873 .resume = usbtest_resume,
2876 /*-------------------------------------------------------------------------*/
2878 static int __init usbtest_init(void)
2882 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product);
2884 return usb_register(&usbtest_driver);
2886 module_init(usbtest_init);
2888 static void __exit usbtest_exit(void)
2890 usb_deregister(&usbtest_driver);
2892 module_exit(usbtest_exit);
2894 MODULE_DESCRIPTION("USB Core/HCD Testing Driver");
2895 MODULE_LICENSE("GPL");