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;
564 static int perform_sglist(
565 struct usbtest_dev *tdev,
568 struct usb_sg_request *req,
569 struct scatterlist *sg,
573 struct usb_device *udev = testdev_to_usbdev(tdev);
575 struct timer_list sg_timer;
577 setup_timer_on_stack(&sg_timer, sg_timeout, (unsigned long) req);
579 while (retval == 0 && iterations-- > 0) {
580 retval = usb_sg_init(req, udev, pipe,
581 (udev->speed == USB_SPEED_HIGH)
582 ? (INTERRUPT_RATE << 3)
584 sg, nents, 0, GFP_KERNEL);
588 mod_timer(&sg_timer, jiffies +
589 msecs_to_jiffies(SIMPLE_IO_TIMEOUT));
591 if (!del_timer_sync(&sg_timer))
594 retval = req->status;
596 /* FIXME check resulting data pattern */
598 /* FIXME if endpoint halted, clear halt (and log) */
601 /* FIXME for unlink or fault handling tests, don't report
602 * failure if retval is as we expected ...
605 ERROR(tdev, "perform_sglist failed, "
606 "iterations left %d, status %d\n",
612 /*-------------------------------------------------------------------------*/
614 /* unqueued control message testing
616 * there's a nice set of device functional requirements in chapter 9 of the
617 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
618 * special test firmware.
620 * we know the device is configured (or suspended) by the time it's visible
621 * through usbfs. we can't change that, so we won't test enumeration (which
622 * worked 'well enough' to get here, this time), power management (ditto),
623 * or remote wakeup (which needs human interaction).
626 static unsigned realworld = 1;
627 module_param(realworld, uint, 0);
628 MODULE_PARM_DESC(realworld, "clear to demand stricter spec compliance");
630 static int get_altsetting(struct usbtest_dev *dev)
632 struct usb_interface *iface = dev->intf;
633 struct usb_device *udev = interface_to_usbdev(iface);
636 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
637 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
638 0, iface->altsetting[0].desc.bInterfaceNumber,
639 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
651 static int set_altsetting(struct usbtest_dev *dev, int alternate)
653 struct usb_interface *iface = dev->intf;
654 struct usb_device *udev;
656 if (alternate < 0 || alternate >= 256)
659 udev = interface_to_usbdev(iface);
660 return usb_set_interface(udev,
661 iface->altsetting[0].desc.bInterfaceNumber,
665 static int is_good_config(struct usbtest_dev *tdev, int len)
667 struct usb_config_descriptor *config;
669 if (len < sizeof(*config))
671 config = (struct usb_config_descriptor *) tdev->buf;
673 switch (config->bDescriptorType) {
675 case USB_DT_OTHER_SPEED_CONFIG:
676 if (config->bLength != 9) {
677 ERROR(tdev, "bogus config descriptor length\n");
680 /* this bit 'must be 1' but often isn't */
681 if (!realworld && !(config->bmAttributes & 0x80)) {
682 ERROR(tdev, "high bit of config attributes not set\n");
685 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
686 ERROR(tdev, "reserved config bits set\n");
694 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
696 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
698 ERROR(tdev, "bogus config descriptor read size\n");
702 static int is_good_ext(struct usbtest_dev *tdev, u8 *buf)
704 struct usb_ext_cap_descriptor *ext;
707 ext = (struct usb_ext_cap_descriptor *) buf;
709 if (ext->bLength != USB_DT_USB_EXT_CAP_SIZE) {
710 ERROR(tdev, "bogus usb 2.0 extension descriptor length\n");
714 attr = le32_to_cpu(ext->bmAttributes);
715 /* bits[1:15] is used and others are reserved */
716 if (attr & ~0xfffe) { /* reserved == 0 */
717 ERROR(tdev, "reserved bits set\n");
724 static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf)
726 struct usb_ss_cap_descriptor *ss;
728 ss = (struct usb_ss_cap_descriptor *) buf;
730 if (ss->bLength != USB_DT_USB_SS_CAP_SIZE) {
731 ERROR(tdev, "bogus superspeed device capability descriptor length\n");
736 * only bit[1] of bmAttributes is used for LTM and others are
739 if (ss->bmAttributes & ~0x02) { /* reserved == 0 */
740 ERROR(tdev, "reserved bits set in bmAttributes\n");
744 /* bits[0:3] of wSpeedSupported is used and others are reserved */
745 if (le16_to_cpu(ss->wSpeedSupported) & ~0x0f) { /* reserved == 0 */
746 ERROR(tdev, "reserved bits set in wSpeedSupported\n");
753 static int is_good_con_id(struct usbtest_dev *tdev, u8 *buf)
755 struct usb_ss_container_id_descriptor *con_id;
757 con_id = (struct usb_ss_container_id_descriptor *) buf;
759 if (con_id->bLength != USB_DT_USB_SS_CONTN_ID_SIZE) {
760 ERROR(tdev, "bogus container id descriptor length\n");
764 if (con_id->bReserved) { /* reserved == 0 */
765 ERROR(tdev, "reserved bits set\n");
772 /* sanity test for standard requests working with usb_control_mesg() and some
773 * of the utility functions which use it.
775 * this doesn't test how endpoint halts behave or data toggles get set, since
776 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
777 * halt or toggle). toggle testing is impractical without support from hcds.
779 * this avoids failing devices linux would normally work with, by not testing
780 * config/altsetting operations for devices that only support their defaults.
781 * such devices rarely support those needless operations.
783 * NOTE that since this is a sanity test, it's not examining boundary cases
784 * to see if usbcore, hcd, and device all behave right. such testing would
785 * involve varied read sizes and other operation sequences.
787 static int ch9_postconfig(struct usbtest_dev *dev)
789 struct usb_interface *iface = dev->intf;
790 struct usb_device *udev = interface_to_usbdev(iface);
793 /* [9.2.3] if there's more than one altsetting, we need to be able to
794 * set and get each one. mostly trusts the descriptors from usbcore.
796 for (i = 0; i < iface->num_altsetting; i++) {
798 /* 9.2.3 constrains the range here */
799 alt = iface->altsetting[i].desc.bAlternateSetting;
800 if (alt < 0 || alt >= iface->num_altsetting) {
802 "invalid alt [%d].bAltSetting = %d\n",
806 /* [real world] get/set unimplemented if there's only one */
807 if (realworld && iface->num_altsetting == 1)
810 /* [9.4.10] set_interface */
811 retval = set_altsetting(dev, alt);
813 dev_err(&iface->dev, "can't set_interface = %d, %d\n",
818 /* [9.4.4] get_interface always works */
819 retval = get_altsetting(dev);
821 dev_err(&iface->dev, "get alt should be %d, was %d\n",
823 return (retval < 0) ? retval : -EDOM;
828 /* [real world] get_config unimplemented if there's only one */
829 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
830 int expected = udev->actconfig->desc.bConfigurationValue;
832 /* [9.4.2] get_configuration always works
833 * ... although some cheap devices (like one TI Hub I've got)
834 * won't return config descriptors except before set_config.
836 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
837 USB_REQ_GET_CONFIGURATION,
838 USB_DIR_IN | USB_RECIP_DEVICE,
839 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
840 if (retval != 1 || dev->buf[0] != expected) {
841 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n",
842 retval, dev->buf[0], expected);
843 return (retval < 0) ? retval : -EDOM;
847 /* there's always [9.4.3] a device descriptor [9.6.1] */
848 retval = usb_get_descriptor(udev, USB_DT_DEVICE, 0,
849 dev->buf, sizeof(udev->descriptor));
850 if (retval != sizeof(udev->descriptor)) {
851 dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
852 return (retval < 0) ? retval : -EDOM;
856 * there's always [9.4.3] a bos device descriptor [9.6.2] in USB
859 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0210) {
860 struct usb_bos_descriptor *bos = NULL;
861 struct usb_dev_cap_header *header = NULL;
862 unsigned total, num, length;
865 retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
866 sizeof(*udev->bos->desc));
867 if (retval != sizeof(*udev->bos->desc)) {
868 dev_err(&iface->dev, "bos descriptor --> %d\n", retval);
869 return (retval < 0) ? retval : -EDOM;
872 bos = (struct usb_bos_descriptor *)dev->buf;
873 total = le16_to_cpu(bos->wTotalLength);
874 num = bos->bNumDeviceCaps;
876 if (total > TBUF_SIZE)
880 * get generic device-level capability descriptors [9.6.2]
883 retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
885 if (retval != total) {
886 dev_err(&iface->dev, "bos descriptor set --> %d\n",
888 return (retval < 0) ? retval : -EDOM;
891 length = sizeof(*udev->bos->desc);
893 for (i = 0; i < num; i++) {
895 if (buf + sizeof(struct usb_dev_cap_header) >
899 header = (struct usb_dev_cap_header *)buf;
900 length = header->bLength;
902 if (header->bDescriptorType !=
903 USB_DT_DEVICE_CAPABILITY) {
904 dev_warn(&udev->dev, "not device capability descriptor, skip\n");
908 switch (header->bDevCapabilityType) {
909 case USB_CAP_TYPE_EXT:
910 if (buf + USB_DT_USB_EXT_CAP_SIZE >
912 !is_good_ext(dev, buf)) {
913 dev_err(&iface->dev, "bogus usb 2.0 extension descriptor\n");
917 case USB_SS_CAP_TYPE:
918 if (buf + USB_DT_USB_SS_CAP_SIZE >
920 !is_good_ss_cap(dev, buf)) {
921 dev_err(&iface->dev, "bogus superspeed device capability descriptor\n");
925 case CONTAINER_ID_TYPE:
926 if (buf + USB_DT_USB_SS_CONTN_ID_SIZE >
928 !is_good_con_id(dev, buf)) {
929 dev_err(&iface->dev, "bogus container id descriptor\n");
939 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
940 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
941 retval = usb_get_descriptor(udev, USB_DT_CONFIG, i,
942 dev->buf, TBUF_SIZE);
943 if (!is_good_config(dev, retval)) {
945 "config [%d] descriptor --> %d\n",
947 return (retval < 0) ? retval : -EDOM;
950 /* FIXME cross-checking udev->config[i] to make sure usbcore
951 * parsed it right (etc) would be good testing paranoia
955 /* and sometimes [9.2.6.6] speed dependent descriptors */
956 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
957 struct usb_qualifier_descriptor *d = NULL;
959 /* device qualifier [9.6.2] */
960 retval = usb_get_descriptor(udev,
961 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
962 sizeof(struct usb_qualifier_descriptor));
963 if (retval == -EPIPE) {
964 if (udev->speed == USB_SPEED_HIGH) {
966 "hs dev qualifier --> %d\n",
968 return (retval < 0) ? retval : -EDOM;
970 /* usb2.0 but not high-speed capable; fine */
971 } else if (retval != sizeof(struct usb_qualifier_descriptor)) {
972 dev_err(&iface->dev, "dev qualifier --> %d\n", retval);
973 return (retval < 0) ? retval : -EDOM;
975 d = (struct usb_qualifier_descriptor *) dev->buf;
977 /* might not have [9.6.2] any other-speed configs [9.6.4] */
979 unsigned max = d->bNumConfigurations;
980 for (i = 0; i < max; i++) {
981 retval = usb_get_descriptor(udev,
982 USB_DT_OTHER_SPEED_CONFIG, i,
983 dev->buf, TBUF_SIZE);
984 if (!is_good_config(dev, retval)) {
986 "other speed config --> %d\n",
988 return (retval < 0) ? retval : -EDOM;
993 /* FIXME fetch strings from at least the device descriptor */
995 /* [9.4.5] get_status always works */
996 retval = usb_get_status(udev, USB_RECIP_DEVICE, 0, dev->buf);
998 dev_err(&iface->dev, "get dev status --> %d\n", retval);
1002 /* FIXME configuration.bmAttributes says if we could try to set/clear
1003 * the device's remote wakeup feature ... if we can, test that here
1006 retval = usb_get_status(udev, USB_RECIP_INTERFACE,
1007 iface->altsetting[0].desc.bInterfaceNumber, dev->buf);
1009 dev_err(&iface->dev, "get interface status --> %d\n", retval);
1012 /* FIXME get status for each endpoint in the interface */
1017 /*-------------------------------------------------------------------------*/
1019 /* use ch9 requests to test whether:
1020 * (a) queues work for control, keeping N subtests queued and
1021 * active (auto-resubmit) for M loops through the queue.
1022 * (b) protocol stalls (control-only) will autorecover.
1023 * it's not like bulk/intr; no halt clearing.
1024 * (c) short control reads are reported and handled.
1025 * (d) queues are always processed in-order
1030 struct usbtest_dev *dev;
1031 struct completion complete;
1036 struct usbtest_param *param;
1040 #define NUM_SUBCASES 16 /* how many test subcases here? */
1043 struct usb_ctrlrequest setup;
1048 static void ctrl_complete(struct urb *urb)
1050 struct ctrl_ctx *ctx = urb->context;
1051 struct usb_ctrlrequest *reqp;
1052 struct subcase *subcase;
1053 int status = urb->status;
1055 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
1056 subcase = container_of(reqp, struct subcase, setup);
1058 spin_lock(&ctx->lock);
1062 /* queue must transfer and complete in fifo order, unless
1063 * usb_unlink_urb() is used to unlink something not at the
1064 * physical queue head (not tested).
1066 if (subcase->number > 0) {
1067 if ((subcase->number - ctx->last) != 1) {
1069 "subcase %d completed out of order, last %d\n",
1070 subcase->number, ctx->last);
1072 ctx->last = subcase->number;
1076 ctx->last = subcase->number;
1078 /* succeed or fault in only one way? */
1079 if (status == subcase->expected)
1082 /* async unlink for cleanup? */
1083 else if (status != -ECONNRESET) {
1085 /* some faults are allowed, not required */
1086 if (subcase->expected > 0 && (
1087 ((status == -subcase->expected /* happened */
1088 || status == 0)))) /* didn't */
1090 /* sometimes more than one fault is allowed */
1091 else if (subcase->number == 12 && status == -EPIPE)
1094 ERROR(ctx->dev, "subtest %d error, status %d\n",
1095 subcase->number, status);
1098 /* unexpected status codes mean errors; ideally, in hardware */
1101 if (ctx->status == 0) {
1104 ctx->status = status;
1105 ERROR(ctx->dev, "control queue %02x.%02x, err %d, "
1106 "%d left, subcase %d, len %d/%d\n",
1107 reqp->bRequestType, reqp->bRequest,
1108 status, ctx->count, subcase->number,
1110 urb->transfer_buffer_length);
1112 /* FIXME this "unlink everything" exit route should
1113 * be a separate test case.
1116 /* unlink whatever's still pending */
1117 for (i = 1; i < ctx->param->sglen; i++) {
1118 struct urb *u = ctx->urb[
1119 (i + subcase->number)
1120 % ctx->param->sglen];
1122 if (u == urb || !u->dev)
1124 spin_unlock(&ctx->lock);
1125 status = usb_unlink_urb(u);
1126 spin_lock(&ctx->lock);
1133 ERROR(ctx->dev, "urb unlink --> %d\n",
1137 status = ctx->status;
1141 /* resubmit if we need to, else mark this as done */
1142 if ((status == 0) && (ctx->pending < ctx->count)) {
1143 status = usb_submit_urb(urb, GFP_ATOMIC);
1146 "can't resubmit ctrl %02x.%02x, err %d\n",
1147 reqp->bRequestType, reqp->bRequest, status);
1154 /* signal completion when nothing's queued */
1155 if (ctx->pending == 0)
1156 complete(&ctx->complete);
1157 spin_unlock(&ctx->lock);
1161 test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param)
1163 struct usb_device *udev = testdev_to_usbdev(dev);
1165 struct ctrl_ctx context;
1168 if (param->sglen == 0 || param->iterations > UINT_MAX / param->sglen)
1171 spin_lock_init(&context.lock);
1173 init_completion(&context.complete);
1174 context.count = param->sglen * param->iterations;
1175 context.pending = 0;
1176 context.status = -ENOMEM;
1177 context.param = param;
1180 /* allocate and init the urbs we'll queue.
1181 * as with bulk/intr sglists, sglen is the queue depth; it also
1182 * controls which subtests run (more tests than sglen) or rerun.
1184 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);
1187 for (i = 0; i < param->sglen; i++) {
1188 int pipe = usb_rcvctrlpipe(udev, 0);
1191 struct usb_ctrlrequest req;
1192 struct subcase *reqp;
1194 /* sign of this variable means:
1195 * -: tested code must return this (negative) error code
1196 * +: tested code may return this (negative too) error code
1200 /* requests here are mostly expected to succeed on any
1201 * device, but some are chosen to trigger protocol stalls
1204 memset(&req, 0, sizeof(req));
1205 req.bRequest = USB_REQ_GET_DESCRIPTOR;
1206 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
1208 switch (i % NUM_SUBCASES) {
1209 case 0: /* get device descriptor */
1210 req.wValue = cpu_to_le16(USB_DT_DEVICE << 8);
1211 len = sizeof(struct usb_device_descriptor);
1213 case 1: /* get first config descriptor (only) */
1214 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1215 len = sizeof(struct usb_config_descriptor);
1217 case 2: /* get altsetting (OFTEN STALLS) */
1218 req.bRequest = USB_REQ_GET_INTERFACE;
1219 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
1220 /* index = 0 means first interface */
1224 case 3: /* get interface status */
1225 req.bRequest = USB_REQ_GET_STATUS;
1226 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
1230 case 4: /* get device status */
1231 req.bRequest = USB_REQ_GET_STATUS;
1232 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
1235 case 5: /* get device qualifier (MAY STALL) */
1236 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
1237 len = sizeof(struct usb_qualifier_descriptor);
1238 if (udev->speed != USB_SPEED_HIGH)
1241 case 6: /* get first config descriptor, plus interface */
1242 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1243 len = sizeof(struct usb_config_descriptor);
1244 len += sizeof(struct usb_interface_descriptor);
1246 case 7: /* get interface descriptor (ALWAYS STALLS) */
1247 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
1248 /* interface == 0 */
1249 len = sizeof(struct usb_interface_descriptor);
1252 /* NOTE: two consecutive stalls in the queue here.
1253 * that tests fault recovery a bit more aggressively. */
1254 case 8: /* clear endpoint halt (MAY STALL) */
1255 req.bRequest = USB_REQ_CLEAR_FEATURE;
1256 req.bRequestType = USB_RECIP_ENDPOINT;
1257 /* wValue 0 == ep halt */
1258 /* wIndex 0 == ep0 (shouldn't halt!) */
1260 pipe = usb_sndctrlpipe(udev, 0);
1263 case 9: /* get endpoint status */
1264 req.bRequest = USB_REQ_GET_STATUS;
1265 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
1269 case 10: /* trigger short read (EREMOTEIO) */
1270 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1272 expected = -EREMOTEIO;
1274 /* NOTE: two consecutive _different_ faults in the queue. */
1275 case 11: /* get endpoint descriptor (ALWAYS STALLS) */
1276 req.wValue = cpu_to_le16(USB_DT_ENDPOINT << 8);
1278 len = sizeof(struct usb_interface_descriptor);
1281 /* NOTE: sometimes even a third fault in the queue! */
1282 case 12: /* get string 0 descriptor (MAY STALL) */
1283 req.wValue = cpu_to_le16(USB_DT_STRING << 8);
1284 /* string == 0, for language IDs */
1285 len = sizeof(struct usb_interface_descriptor);
1286 /* may succeed when > 4 languages */
1287 expected = EREMOTEIO; /* or EPIPE, if no strings */
1289 case 13: /* short read, resembling case 10 */
1290 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1291 /* last data packet "should" be DATA1, not DATA0 */
1292 if (udev->speed == USB_SPEED_SUPER)
1295 len = 1024 - udev->descriptor.bMaxPacketSize0;
1296 expected = -EREMOTEIO;
1298 case 14: /* short read; try to fill the last packet */
1299 req.wValue = cpu_to_le16((USB_DT_DEVICE << 8) | 0);
1300 /* device descriptor size == 18 bytes */
1301 len = udev->descriptor.bMaxPacketSize0;
1302 if (udev->speed == USB_SPEED_SUPER)
1312 expected = -EREMOTEIO;
1315 req.wValue = cpu_to_le16(USB_DT_BOS << 8);
1317 len = le16_to_cpu(udev->bos->desc->wTotalLength);
1319 len = sizeof(struct usb_bos_descriptor);
1320 if (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0201)
1324 ERROR(dev, "bogus number of ctrl queue testcases!\n");
1325 context.status = -EINVAL;
1328 req.wLength = cpu_to_le16(len);
1329 urb[i] = u = simple_alloc_urb(udev, pipe, len, 0);
1333 reqp = kmalloc(sizeof(*reqp), GFP_KERNEL);
1337 reqp->number = i % NUM_SUBCASES;
1338 reqp->expected = expected;
1339 u->setup_packet = (char *) &reqp->setup;
1341 u->context = &context;
1342 u->complete = ctrl_complete;
1345 /* queue the urbs */
1347 spin_lock_irq(&context.lock);
1348 for (i = 0; i < param->sglen; i++) {
1349 context.status = usb_submit_urb(urb[i], GFP_ATOMIC);
1350 if (context.status != 0) {
1351 ERROR(dev, "can't submit urb[%d], status %d\n",
1353 context.count = context.pending;
1358 spin_unlock_irq(&context.lock);
1360 /* FIXME set timer and time out; provide a disconnect hook */
1362 /* wait for the last one to complete */
1363 if (context.pending > 0)
1364 wait_for_completion(&context.complete);
1367 for (i = 0; i < param->sglen; i++) {
1371 kfree(urb[i]->setup_packet);
1372 simple_free_urb(urb[i]);
1375 return context.status;
1380 /*-------------------------------------------------------------------------*/
1382 static void unlink1_callback(struct urb *urb)
1384 int status = urb->status;
1386 /* we "know" -EPIPE (stall) never happens */
1388 status = usb_submit_urb(urb, GFP_ATOMIC);
1390 urb->status = status;
1391 complete(urb->context);
1395 static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async)
1398 struct completion completion;
1401 init_completion(&completion);
1402 urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size, 0);
1405 urb->context = &completion;
1406 urb->complete = unlink1_callback;
1408 if (usb_pipeout(urb->pipe)) {
1409 simple_fill_buf(urb);
1410 urb->transfer_flags |= URB_ZERO_PACKET;
1413 /* keep the endpoint busy. there are lots of hc/hcd-internal
1414 * states, and testing should get to all of them over time.
1416 * FIXME want additional tests for when endpoint is STALLing
1417 * due to errors, or is just NAKing requests.
1419 retval = usb_submit_urb(urb, GFP_KERNEL);
1421 dev_err(&dev->intf->dev, "submit fail %d\n", retval);
1425 /* unlinking that should always work. variable delay tests more
1426 * hcd states and code paths, even with little other system load.
1428 msleep(jiffies % (2 * INTERRUPT_RATE));
1430 while (!completion_done(&completion)) {
1431 retval = usb_unlink_urb(urb);
1433 if (retval == 0 && usb_pipein(urb->pipe))
1434 retval = simple_check_buf(dev, urb);
1439 /* we can't unlink urbs while they're completing
1440 * or if they've completed, and we haven't
1441 * resubmitted. "normal" drivers would prevent
1442 * resubmission, but since we're testing unlink
1445 ERROR(dev, "unlink retry\n");
1452 dev_err(&dev->intf->dev,
1453 "unlink fail %d\n", retval);
1462 wait_for_completion(&completion);
1463 retval = urb->status;
1464 simple_free_urb(urb);
1467 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1469 return (retval == -ENOENT || retval == -EPERM) ?
1473 static int unlink_simple(struct usbtest_dev *dev, int pipe, int len)
1477 /* test sync and async paths */
1478 retval = unlink1(dev, pipe, len, 1);
1480 retval = unlink1(dev, pipe, len, 0);
1484 /*-------------------------------------------------------------------------*/
1487 struct completion complete;
1494 static void unlink_queued_callback(struct urb *urb)
1496 int status = urb->status;
1497 struct queued_ctx *ctx = urb->context;
1501 if (urb == ctx->urbs[ctx->num - 4] || urb == ctx->urbs[ctx->num - 2]) {
1502 if (status == -ECONNRESET)
1504 /* What error should we report if the URB completed normally? */
1507 ctx->status = status;
1510 if (atomic_dec_and_test(&ctx->pending))
1511 complete(&ctx->complete);
1514 static int unlink_queued(struct usbtest_dev *dev, int pipe, unsigned num,
1517 struct queued_ctx ctx;
1518 struct usb_device *udev = testdev_to_usbdev(dev);
1522 int retval = -ENOMEM;
1524 init_completion(&ctx.complete);
1525 atomic_set(&ctx.pending, 1); /* One more than the actual value */
1529 buf = usb_alloc_coherent(udev, size, GFP_KERNEL, &buf_dma);
1532 memset(buf, 0, size);
1534 /* Allocate and init the urbs we'll queue */
1535 ctx.urbs = kcalloc(num, sizeof(struct urb *), GFP_KERNEL);
1538 for (i = 0; i < num; i++) {
1539 ctx.urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
1542 usb_fill_bulk_urb(ctx.urbs[i], udev, pipe, buf, size,
1543 unlink_queued_callback, &ctx);
1544 ctx.urbs[i]->transfer_dma = buf_dma;
1545 ctx.urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1547 if (usb_pipeout(ctx.urbs[i]->pipe)) {
1548 simple_fill_buf(ctx.urbs[i]);
1549 ctx.urbs[i]->transfer_flags |= URB_ZERO_PACKET;
1553 /* Submit all the URBs and then unlink URBs num - 4 and num - 2. */
1554 for (i = 0; i < num; i++) {
1555 atomic_inc(&ctx.pending);
1556 retval = usb_submit_urb(ctx.urbs[i], GFP_KERNEL);
1558 dev_err(&dev->intf->dev, "submit urbs[%d] fail %d\n",
1560 atomic_dec(&ctx.pending);
1561 ctx.status = retval;
1566 usb_unlink_urb(ctx.urbs[num - 4]);
1567 usb_unlink_urb(ctx.urbs[num - 2]);
1570 usb_unlink_urb(ctx.urbs[i]);
1573 if (atomic_dec_and_test(&ctx.pending)) /* The extra count */
1574 complete(&ctx.complete);
1575 wait_for_completion(&ctx.complete);
1576 retval = ctx.status;
1579 for (i = 0; i < num; i++)
1580 usb_free_urb(ctx.urbs[i]);
1583 usb_free_coherent(udev, size, buf, buf_dma);
1587 /*-------------------------------------------------------------------------*/
1589 static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1594 /* shouldn't look or act halted */
1595 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1597 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
1602 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status);
1605 retval = simple_io(tdev, urb, 1, 0, 0, __func__);
1611 static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1616 /* should look and act halted */
1617 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1619 ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
1624 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status);
1627 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__);
1628 if (retval != -EPIPE)
1630 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted");
1631 if (retval != -EPIPE)
1636 static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
1640 /* shouldn't look or act halted now */
1641 retval = verify_not_halted(tdev, ep, urb);
1645 /* set halt (protocol test only), verify it worked */
1646 retval = usb_control_msg(urb->dev, usb_sndctrlpipe(urb->dev, 0),
1647 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1648 USB_ENDPOINT_HALT, ep,
1649 NULL, 0, USB_CTRL_SET_TIMEOUT);
1651 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval);
1654 retval = verify_halted(tdev, ep, urb);
1658 /* clear halt anyways, else further tests will fail */
1659 ret = usb_clear_halt(urb->dev, urb->pipe);
1661 ERROR(tdev, "ep %02x couldn't clear halt, %d\n",
1667 /* clear halt (tests API + protocol), verify it worked */
1668 retval = usb_clear_halt(urb->dev, urb->pipe);
1670 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval);
1673 retval = verify_not_halted(tdev, ep, urb);
1677 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1682 static int halt_simple(struct usbtest_dev *dev)
1687 struct usb_device *udev = testdev_to_usbdev(dev);
1689 if (udev->speed == USB_SPEED_SUPER)
1690 urb = simple_alloc_urb(udev, 0, 1024, 0);
1692 urb = simple_alloc_urb(udev, 0, 512, 0);
1697 ep = usb_pipeendpoint(dev->in_pipe) | USB_DIR_IN;
1698 urb->pipe = dev->in_pipe;
1699 retval = test_halt(dev, ep, urb);
1704 if (dev->out_pipe) {
1705 ep = usb_pipeendpoint(dev->out_pipe);
1706 urb->pipe = dev->out_pipe;
1707 retval = test_halt(dev, ep, urb);
1710 simple_free_urb(urb);
1714 /*-------------------------------------------------------------------------*/
1716 /* Control OUT tests use the vendor control requests from Intel's
1717 * USB 2.0 compliance test device: write a buffer, read it back.
1719 * Intel's spec only _requires_ that it work for one packet, which
1720 * is pretty weak. Some HCDs place limits here; most devices will
1721 * need to be able to handle more than one OUT data packet. We'll
1722 * try whatever we're told to try.
1724 static int ctrl_out(struct usbtest_dev *dev,
1725 unsigned count, unsigned length, unsigned vary, unsigned offset)
1731 struct usb_device *udev;
1733 if (length < 1 || length > 0xffff || vary >= length)
1736 buf = kmalloc(length + offset, GFP_KERNEL);
1741 udev = testdev_to_usbdev(dev);
1745 /* NOTE: hardware might well act differently if we pushed it
1746 * with lots back-to-back queued requests.
1748 for (i = 0; i < count; i++) {
1749 /* write patterned data */
1750 for (j = 0; j < len; j++)
1751 buf[j] = (u8)(i + j);
1752 retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1753 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1754 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1755 if (retval != len) {
1758 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n",
1765 /* read it back -- assuming nothing intervened!! */
1766 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
1767 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1768 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1769 if (retval != len) {
1772 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n",
1779 /* fail if we can't verify */
1780 for (j = 0; j < len; j++) {
1781 if (buf[j] != (u8)(i + j)) {
1782 ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
1783 j, buf[j], (u8)(i + j));
1795 /* [real world] the "zero bytes IN" case isn't really used.
1796 * hardware can easily trip up in this weird case, since its
1797 * status stage is IN, not OUT like other ep0in transfers.
1800 len = realworld ? 1 : 0;
1804 ERROR(dev, "ctrl_out %s failed, code %d, count %d\n",
1807 kfree(buf - offset);
1811 /*-------------------------------------------------------------------------*/
1813 /* ISO/BULK tests ... mimics common usage
1814 * - buffer length is split into N packets (mostly maxpacket sized)
1815 * - multi-buffers according to sglen
1818 struct transfer_context {
1822 struct completion done;
1824 unsigned long errors;
1825 unsigned long packet_count;
1826 struct usbtest_dev *dev;
1830 static void complicated_callback(struct urb *urb)
1832 struct transfer_context *ctx = urb->context;
1834 spin_lock(&ctx->lock);
1837 ctx->packet_count += urb->number_of_packets;
1838 if (urb->error_count > 0)
1839 ctx->errors += urb->error_count;
1840 else if (urb->status != 0)
1841 ctx->errors += (ctx->is_iso ? urb->number_of_packets : 1);
1842 else if (urb->actual_length != urb->transfer_buffer_length)
1844 else if (check_guard_bytes(ctx->dev, urb) != 0)
1847 if (urb->status == 0 && ctx->count > (ctx->pending - 1)
1848 && !ctx->submit_error) {
1849 int status = usb_submit_urb(urb, GFP_ATOMIC);
1854 dev_err(&ctx->dev->intf->dev,
1855 "iso resubmit err %d\n",
1858 case -ENODEV: /* disconnected */
1859 case -ESHUTDOWN: /* endpoint disabled */
1860 ctx->submit_error = 1;
1866 if (ctx->pending == 0) {
1868 dev_err(&ctx->dev->intf->dev,
1869 "iso test, %lu errors out of %lu\n",
1870 ctx->errors, ctx->packet_count);
1871 complete(&ctx->done);
1874 spin_unlock(&ctx->lock);
1877 static struct urb *iso_alloc_urb(
1878 struct usb_device *udev,
1880 struct usb_endpoint_descriptor *desc,
1886 unsigned i, maxp, packets;
1888 if (bytes < 0 || !desc)
1890 maxp = 0x7ff & usb_endpoint_maxp(desc);
1891 maxp *= 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11));
1892 packets = DIV_ROUND_UP(bytes, maxp);
1894 urb = usb_alloc_urb(packets, GFP_KERNEL);
1900 urb->number_of_packets = packets;
1901 urb->transfer_buffer_length = bytes;
1902 urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset,
1904 &urb->transfer_dma);
1905 if (!urb->transfer_buffer) {
1910 memset(urb->transfer_buffer, GUARD_BYTE, offset);
1911 urb->transfer_buffer += offset;
1912 urb->transfer_dma += offset;
1914 /* For inbound transfers use guard byte so that test fails if
1915 data not correctly copied */
1916 memset(urb->transfer_buffer,
1917 usb_pipein(urb->pipe) ? GUARD_BYTE : 0,
1920 for (i = 0; i < packets; i++) {
1921 /* here, only the last packet will be short */
1922 urb->iso_frame_desc[i].length = min((unsigned) bytes, maxp);
1923 bytes -= urb->iso_frame_desc[i].length;
1925 urb->iso_frame_desc[i].offset = maxp * i;
1928 urb->complete = complicated_callback;
1929 /* urb->context = SET BY CALLER */
1930 urb->interval = 1 << (desc->bInterval - 1);
1931 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1936 test_queue(struct usbtest_dev *dev, struct usbtest_param *param,
1937 int pipe, struct usb_endpoint_descriptor *desc, unsigned offset)
1939 struct transfer_context context;
1940 struct usb_device *udev;
1942 unsigned long packets = 0;
1944 struct urb *urbs[param->sglen];
1946 memset(&context, 0, sizeof(context));
1947 context.count = param->iterations * param->sglen;
1949 context.is_iso = !!desc;
1950 init_completion(&context.done);
1951 spin_lock_init(&context.lock);
1953 udev = testdev_to_usbdev(dev);
1955 for (i = 0; i < param->sglen; i++) {
1957 urbs[i] = iso_alloc_urb(udev, pipe, desc,
1958 param->length, offset);
1960 urbs[i] = complicated_alloc_urb(udev, pipe,
1967 packets += urbs[i]->number_of_packets;
1968 urbs[i]->context = &context;
1970 packets *= param->iterations;
1972 if (context.is_iso) {
1973 dev_info(&dev->intf->dev,
1974 "iso period %d %sframes, wMaxPacket %d, transactions: %d\n",
1975 1 << (desc->bInterval - 1),
1976 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1977 usb_endpoint_maxp(desc) & 0x7ff,
1978 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11)));
1980 dev_info(&dev->intf->dev,
1981 "total %lu msec (%lu packets)\n",
1982 (packets * (1 << (desc->bInterval - 1)))
1983 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
1987 spin_lock_irq(&context.lock);
1988 for (i = 0; i < param->sglen; i++) {
1990 status = usb_submit_urb(urbs[i], GFP_ATOMIC);
1992 ERROR(dev, "submit iso[%d], error %d\n", i, status);
1994 spin_unlock_irq(&context.lock);
1998 simple_free_urb(urbs[i]);
2001 context.submit_error = 1;
2005 spin_unlock_irq(&context.lock);
2007 wait_for_completion(&context.done);
2009 for (i = 0; i < param->sglen; i++) {
2011 simple_free_urb(urbs[i]);
2014 * Isochronous transfers are expected to fail sometimes. As an
2015 * arbitrary limit, we will report an error if any submissions
2016 * fail or if the transfer failure rate is > 10%.
2020 else if (context.submit_error)
2022 else if (context.errors >
2023 (context.is_iso ? context.packet_count / 10 : 0))
2028 for (i = 0; i < param->sglen; i++) {
2030 simple_free_urb(urbs[i]);
2035 static int test_unaligned_bulk(
2036 struct usbtest_dev *tdev,
2040 unsigned transfer_flags,
2044 struct urb *urb = usbtest_alloc_urb(testdev_to_usbdev(tdev),
2045 pipe, length, transfer_flags, 1, 0, simple_callback);
2050 retval = simple_io(tdev, urb, iterations, 0, 0, label);
2051 simple_free_urb(urb);
2055 /*-------------------------------------------------------------------------*/
2057 /* We only have this one interface to user space, through usbfs.
2058 * User mode code can scan usbfs to find N different devices (maybe on
2059 * different busses) to use when testing, and allocate one thread per
2060 * test. So discovery is simplified, and we have no device naming issues.
2062 * Don't use these only as stress/load tests. Use them along with with
2063 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
2064 * video capture, and so on. Run different tests at different times, in
2065 * different sequences. Nothing here should interact with other devices,
2066 * except indirectly by consuming USB bandwidth and CPU resources for test
2067 * threads and request completion. But the only way to know that for sure
2068 * is to test when HC queues are in use by many devices.
2070 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
2071 * it locks out usbcore in certain code paths. Notably, if you disconnect
2072 * the device-under-test, hub_wq will wait block forever waiting for the
2073 * ioctl to complete ... so that usb_disconnect() can abort the pending
2074 * urbs and then call usbtest_disconnect(). To abort a test, you're best
2075 * off just killing the userspace task and waiting for it to exit.
2079 usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
2081 struct usbtest_dev *dev = usb_get_intfdata(intf);
2082 struct usb_device *udev = testdev_to_usbdev(dev);
2083 struct usbtest_param *param = buf;
2084 int retval = -EOPNOTSUPP;
2086 struct scatterlist *sg;
2087 struct usb_sg_request req;
2088 struct timeval start;
2091 /* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */
2093 pattern = mod_pattern;
2095 if (code != USBTEST_REQUEST)
2098 if (param->iterations <= 0)
2101 if (param->sglen > MAX_SGLEN)
2104 if (mutex_lock_interruptible(&dev->lock))
2105 return -ERESTARTSYS;
2107 /* FIXME: What if a system sleep starts while a test is running? */
2109 /* some devices, like ez-usb default devices, need a non-default
2110 * altsetting to have any active endpoints. some tests change
2111 * altsettings; force a default so most tests don't need to check.
2113 if (dev->info->alt >= 0) {
2116 if (intf->altsetting->desc.bInterfaceNumber) {
2117 mutex_unlock(&dev->lock);
2120 res = set_altsetting(dev, dev->info->alt);
2123 "set altsetting to %d failed, %d\n",
2124 dev->info->alt, res);
2125 mutex_unlock(&dev->lock);
2131 * Just a bunch of test cases that every HCD is expected to handle.
2133 * Some may need specific firmware, though it'd be good to have
2134 * one firmware image to handle all the test cases.
2136 * FIXME add more tests! cancel requests, verify the data, control
2137 * queueing, concurrent read+write threads, and so on.
2139 do_gettimeofday(&start);
2140 switch (param->test_num) {
2143 dev_info(&intf->dev, "TEST 0: NOP\n");
2147 /* Simple non-queued bulk I/O tests */
2149 if (dev->out_pipe == 0)
2151 dev_info(&intf->dev,
2152 "TEST 1: write %d bytes %u times\n",
2153 param->length, param->iterations);
2154 urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);
2159 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2160 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");
2161 simple_free_urb(urb);
2164 if (dev->in_pipe == 0)
2166 dev_info(&intf->dev,
2167 "TEST 2: read %d bytes %u times\n",
2168 param->length, param->iterations);
2169 urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);
2174 /* FIRMWARE: bulk source (maybe generates short writes) */
2175 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");
2176 simple_free_urb(urb);
2179 if (dev->out_pipe == 0 || param->vary == 0)
2181 dev_info(&intf->dev,
2182 "TEST 3: write/%d 0..%d bytes %u times\n",
2183 param->vary, param->length, param->iterations);
2184 urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);
2189 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2190 retval = simple_io(dev, urb, param->iterations, param->vary,
2192 simple_free_urb(urb);
2195 if (dev->in_pipe == 0 || param->vary == 0)
2197 dev_info(&intf->dev,
2198 "TEST 4: read/%d 0..%d bytes %u times\n",
2199 param->vary, param->length, param->iterations);
2200 urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);
2205 /* FIRMWARE: bulk source (maybe generates short writes) */
2206 retval = simple_io(dev, urb, param->iterations, param->vary,
2208 simple_free_urb(urb);
2211 /* Queued bulk I/O tests */
2213 if (dev->out_pipe == 0 || param->sglen == 0)
2215 dev_info(&intf->dev,
2216 "TEST 5: write %d sglists %d entries of %d bytes\n",
2218 param->sglen, param->length);
2219 sg = alloc_sglist(param->sglen, param->length,
2220 0, dev, dev->out_pipe);
2225 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2226 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
2227 &req, sg, param->sglen);
2228 free_sglist(sg, param->sglen);
2232 if (dev->in_pipe == 0 || param->sglen == 0)
2234 dev_info(&intf->dev,
2235 "TEST 6: read %d sglists %d entries of %d bytes\n",
2237 param->sglen, param->length);
2238 sg = alloc_sglist(param->sglen, param->length,
2239 0, dev, dev->in_pipe);
2244 /* FIRMWARE: bulk source (maybe generates short writes) */
2245 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
2246 &req, sg, param->sglen);
2247 free_sglist(sg, param->sglen);
2250 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
2252 dev_info(&intf->dev,
2253 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
2254 param->vary, param->iterations,
2255 param->sglen, param->length);
2256 sg = alloc_sglist(param->sglen, param->length,
2257 param->vary, dev, dev->out_pipe);
2262 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2263 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
2264 &req, sg, param->sglen);
2265 free_sglist(sg, param->sglen);
2268 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
2270 dev_info(&intf->dev,
2271 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
2272 param->vary, param->iterations,
2273 param->sglen, param->length);
2274 sg = alloc_sglist(param->sglen, param->length,
2275 param->vary, dev, dev->in_pipe);
2280 /* FIRMWARE: bulk source (maybe generates short writes) */
2281 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
2282 &req, sg, param->sglen);
2283 free_sglist(sg, param->sglen);
2286 /* non-queued sanity tests for control (chapter 9 subset) */
2289 dev_info(&intf->dev,
2290 "TEST 9: ch9 (subset) control tests, %d times\n",
2292 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2293 retval = ch9_postconfig(dev);
2295 dev_err(&intf->dev, "ch9 subset failed, "
2296 "iterations left %d\n", i);
2299 /* queued control messaging */
2302 dev_info(&intf->dev,
2303 "TEST 10: queue %d control calls, %d times\n",
2306 retval = test_ctrl_queue(dev, param);
2309 /* simple non-queued unlinks (ring with one urb) */
2311 if (dev->in_pipe == 0 || !param->length)
2314 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n",
2315 param->iterations, param->length);
2316 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2317 retval = unlink_simple(dev, dev->in_pipe,
2320 dev_err(&intf->dev, "unlink reads failed %d, "
2321 "iterations left %d\n", retval, i);
2324 if (dev->out_pipe == 0 || !param->length)
2327 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n",
2328 param->iterations, param->length);
2329 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2330 retval = unlink_simple(dev, dev->out_pipe,
2333 dev_err(&intf->dev, "unlink writes failed %d, "
2334 "iterations left %d\n", retval, i);
2339 if (dev->out_pipe == 0 && dev->in_pipe == 0)
2342 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n",
2344 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2345 retval = halt_simple(dev);
2348 ERROR(dev, "halts failed, iterations left %d\n", i);
2351 /* control write tests */
2353 if (!dev->info->ctrl_out)
2355 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
2357 realworld ? 1 : 0, param->length,
2359 retval = ctrl_out(dev, param->iterations,
2360 param->length, param->vary, 0);
2363 /* iso write tests */
2365 if (dev->out_iso_pipe == 0 || param->sglen == 0)
2367 dev_info(&intf->dev,
2368 "TEST 15: write %d iso, %d entries of %d bytes\n",
2370 param->sglen, param->length);
2371 /* FIRMWARE: iso sink */
2372 retval = test_queue(dev, param,
2373 dev->out_iso_pipe, dev->iso_out, 0);
2376 /* iso read tests */
2378 if (dev->in_iso_pipe == 0 || param->sglen == 0)
2380 dev_info(&intf->dev,
2381 "TEST 16: read %d iso, %d entries of %d bytes\n",
2383 param->sglen, param->length);
2384 /* FIRMWARE: iso source */
2385 retval = test_queue(dev, param,
2386 dev->in_iso_pipe, dev->iso_in, 0);
2389 /* FIXME scatterlist cancel (needs helper thread) */
2391 /* Tests for bulk I/O using DMA mapping by core and odd address */
2393 if (dev->out_pipe == 0)
2395 dev_info(&intf->dev,
2396 "TEST 17: write odd addr %d bytes %u times core map\n",
2397 param->length, param->iterations);
2399 retval = test_unaligned_bulk(
2401 param->length, param->iterations,
2406 if (dev->in_pipe == 0)
2408 dev_info(&intf->dev,
2409 "TEST 18: read odd addr %d bytes %u times core map\n",
2410 param->length, param->iterations);
2412 retval = test_unaligned_bulk(
2414 param->length, param->iterations,
2418 /* Tests for bulk I/O using premapped coherent buffer and odd address */
2420 if (dev->out_pipe == 0)
2422 dev_info(&intf->dev,
2423 "TEST 19: write odd addr %d bytes %u times premapped\n",
2424 param->length, param->iterations);
2426 retval = test_unaligned_bulk(
2428 param->length, param->iterations,
2429 URB_NO_TRANSFER_DMA_MAP, "test19");
2433 if (dev->in_pipe == 0)
2435 dev_info(&intf->dev,
2436 "TEST 20: read odd addr %d bytes %u times premapped\n",
2437 param->length, param->iterations);
2439 retval = test_unaligned_bulk(
2441 param->length, param->iterations,
2442 URB_NO_TRANSFER_DMA_MAP, "test20");
2445 /* control write tests with unaligned buffer */
2447 if (!dev->info->ctrl_out)
2449 dev_info(&intf->dev,
2450 "TEST 21: %d ep0out odd addr, %d..%d vary %d\n",
2452 realworld ? 1 : 0, param->length,
2454 retval = ctrl_out(dev, param->iterations,
2455 param->length, param->vary, 1);
2458 /* unaligned iso tests */
2460 if (dev->out_iso_pipe == 0 || param->sglen == 0)
2462 dev_info(&intf->dev,
2463 "TEST 22: write %d iso odd, %d entries of %d bytes\n",
2465 param->sglen, param->length);
2466 retval = test_queue(dev, param,
2467 dev->out_iso_pipe, dev->iso_out, 1);
2471 if (dev->in_iso_pipe == 0 || param->sglen == 0)
2473 dev_info(&intf->dev,
2474 "TEST 23: read %d iso odd, %d entries of %d bytes\n",
2476 param->sglen, param->length);
2477 retval = test_queue(dev, param,
2478 dev->in_iso_pipe, dev->iso_in, 1);
2481 /* unlink URBs from a bulk-OUT queue */
2483 if (dev->out_pipe == 0 || !param->length || param->sglen < 4)
2486 dev_info(&intf->dev, "TEST 24: unlink from %d queues of "
2487 "%d %d-byte writes\n",
2488 param->iterations, param->sglen, param->length);
2489 for (i = param->iterations; retval == 0 && i > 0; --i) {
2490 retval = unlink_queued(dev, dev->out_pipe,
2491 param->sglen, param->length);
2494 "unlink queued writes failed %d, "
2495 "iterations left %d\n", retval, i);
2501 /* Simple non-queued interrupt I/O tests */
2503 if (dev->out_int_pipe == 0)
2505 dev_info(&intf->dev,
2506 "TEST 25: write %d bytes %u times\n",
2507 param->length, param->iterations);
2508 urb = simple_alloc_urb(udev, dev->out_int_pipe, param->length,
2509 dev->int_out->bInterval);
2514 /* FIRMWARE: interrupt sink (maybe accepts short writes) */
2515 retval = simple_io(dev, urb, param->iterations, 0, 0, "test25");
2516 simple_free_urb(urb);
2519 if (dev->in_int_pipe == 0)
2521 dev_info(&intf->dev,
2522 "TEST 26: read %d bytes %u times\n",
2523 param->length, param->iterations);
2524 urb = simple_alloc_urb(udev, dev->in_int_pipe, param->length,
2525 dev->int_in->bInterval);
2530 /* FIRMWARE: interrupt source (maybe generates short writes) */
2531 retval = simple_io(dev, urb, param->iterations, 0, 0, "test26");
2532 simple_free_urb(urb);
2535 /* We do performance test, so ignore data compare */
2536 if (dev->out_pipe == 0 || param->sglen == 0 || pattern != 0)
2538 dev_info(&intf->dev,
2539 "TEST 27: bulk write %dMbytes\n", (param->iterations *
2540 param->sglen * param->length) / (1024 * 1024));
2541 retval = test_queue(dev, param,
2542 dev->out_pipe, NULL, 0);
2545 if (dev->in_pipe == 0 || param->sglen == 0 || pattern != 0)
2547 dev_info(&intf->dev,
2548 "TEST 28: bulk read %dMbytes\n", (param->iterations *
2549 param->sglen * param->length) / (1024 * 1024));
2550 retval = test_queue(dev, param,
2551 dev->in_pipe, NULL, 0);
2554 do_gettimeofday(¶m->duration);
2555 param->duration.tv_sec -= start.tv_sec;
2556 param->duration.tv_usec -= start.tv_usec;
2557 if (param->duration.tv_usec < 0) {
2558 param->duration.tv_usec += 1000 * 1000;
2559 param->duration.tv_sec -= 1;
2561 mutex_unlock(&dev->lock);
2565 /*-------------------------------------------------------------------------*/
2567 static unsigned force_interrupt;
2568 module_param(force_interrupt, uint, 0);
2569 MODULE_PARM_DESC(force_interrupt, "0 = test default; else interrupt");
2572 static unsigned short vendor;
2573 module_param(vendor, ushort, 0);
2574 MODULE_PARM_DESC(vendor, "vendor code (from usb-if)");
2576 static unsigned short product;
2577 module_param(product, ushort, 0);
2578 MODULE_PARM_DESC(product, "product code (from vendor)");
2582 usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id)
2584 struct usb_device *udev;
2585 struct usbtest_dev *dev;
2586 struct usbtest_info *info;
2587 char *rtest, *wtest;
2588 char *irtest, *iwtest;
2589 char *intrtest, *intwtest;
2591 udev = interface_to_usbdev(intf);
2594 /* specify devices by module parameters? */
2595 if (id->match_flags == 0) {
2596 /* vendor match required, product match optional */
2597 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
2599 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
2601 dev_info(&intf->dev, "matched module params, "
2602 "vend=0x%04x prod=0x%04x\n",
2603 le16_to_cpu(udev->descriptor.idVendor),
2604 le16_to_cpu(udev->descriptor.idProduct));
2608 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
2611 info = (struct usbtest_info *) id->driver_info;
2613 mutex_init(&dev->lock);
2617 /* cacheline-aligned scratch for i/o */
2618 dev->buf = kmalloc(TBUF_SIZE, GFP_KERNEL);
2619 if (dev->buf == NULL) {
2624 /* NOTE this doesn't yet test the handful of difference that are
2625 * visible with high speed interrupts: bigger maxpacket (1K) and
2626 * "high bandwidth" modes (up to 3 packets/uframe).
2629 irtest = iwtest = "";
2630 intrtest = intwtest = "";
2631 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
2633 dev->in_pipe = usb_rcvintpipe(udev, info->ep_in);
2637 dev->out_pipe = usb_sndintpipe(udev, info->ep_out);
2638 wtest = " intr-out";
2641 if (override_alt >= 0 || info->autoconf) {
2644 status = get_endpoints(dev, intf);
2646 WARNING(dev, "couldn't get endpoints, %d\n",
2652 /* may find bulk or ISO pipes */
2655 dev->in_pipe = usb_rcvbulkpipe(udev,
2658 dev->out_pipe = usb_sndbulkpipe(udev,
2664 wtest = " bulk-out";
2665 if (dev->in_iso_pipe)
2667 if (dev->out_iso_pipe)
2668 iwtest = " iso-out";
2669 if (dev->in_int_pipe)
2670 intrtest = " int-in";
2671 if (dev->out_int_pipe)
2672 intwtest = " int-out";
2675 usb_set_intfdata(intf, dev);
2676 dev_info(&intf->dev, "%s\n", info->name);
2677 dev_info(&intf->dev, "%s {control%s%s%s%s%s%s%s} tests%s\n",
2678 usb_speed_string(udev->speed),
2679 info->ctrl_out ? " in/out" : "",
2683 info->alt >= 0 ? " (+alt)" : "");
2687 static int usbtest_suspend(struct usb_interface *intf, pm_message_t message)
2692 static int usbtest_resume(struct usb_interface *intf)
2698 static void usbtest_disconnect(struct usb_interface *intf)
2700 struct usbtest_dev *dev = usb_get_intfdata(intf);
2702 usb_set_intfdata(intf, NULL);
2703 dev_dbg(&intf->dev, "disconnect\n");
2707 /* Basic testing only needs a device that can source or sink bulk traffic.
2708 * Any device can test control transfers (default with GENERIC binding).
2710 * Several entries work with the default EP0 implementation that's built
2711 * into EZ-USB chips. There's a default vendor ID which can be overridden
2712 * by (very) small config EEPROMS, but otherwise all these devices act
2713 * identically until firmware is loaded: only EP0 works. It turns out
2714 * to be easy to make other endpoints work, without modifying that EP0
2715 * behavior. For now, we expect that kind of firmware.
2718 /* an21xx or fx versions of ez-usb */
2719 static struct usbtest_info ez1_info = {
2720 .name = "EZ-USB device",
2726 /* fx2 version of ez-usb */
2727 static struct usbtest_info ez2_info = {
2728 .name = "FX2 device",
2734 /* ezusb family device with dedicated usb test firmware,
2736 static struct usbtest_info fw_info = {
2737 .name = "usb test device",
2741 .autoconf = 1, /* iso and ctrl_out need autoconf */
2743 .iso = 1, /* iso_ep's are #8 in/out */
2746 /* peripheral running Linux and 'zero.c' test firmware, or
2747 * its user-mode cousin. different versions of this use
2748 * different hardware with the same vendor/product codes.
2749 * host side MUST rely on the endpoint descriptors.
2751 static struct usbtest_info gz_info = {
2752 .name = "Linux gadget zero",
2760 static struct usbtest_info um_info = {
2761 .name = "Linux user mode test driver",
2766 static struct usbtest_info um2_info = {
2767 .name = "Linux user mode ISO test driver",
2774 /* this is a nice source of high speed bulk data;
2775 * uses an FX2, with firmware provided in the device
2777 static struct usbtest_info ibot2_info = {
2778 .name = "iBOT2 webcam",
2785 /* we can use any device to test control traffic */
2786 static struct usbtest_info generic_info = {
2787 .name = "Generic USB device",
2793 static const struct usb_device_id id_table[] = {
2795 /*-------------------------------------------------------------*/
2797 /* EZ-USB devices which download firmware to replace (or in our
2798 * case augment) the default device implementation.
2801 /* generic EZ-USB FX controller */
2802 { USB_DEVICE(0x0547, 0x2235),
2803 .driver_info = (unsigned long) &ez1_info,
2806 /* CY3671 development board with EZ-USB FX */
2807 { USB_DEVICE(0x0547, 0x0080),
2808 .driver_info = (unsigned long) &ez1_info,
2811 /* generic EZ-USB FX2 controller (or development board) */
2812 { USB_DEVICE(0x04b4, 0x8613),
2813 .driver_info = (unsigned long) &ez2_info,
2816 /* re-enumerated usb test device firmware */
2817 { USB_DEVICE(0xfff0, 0xfff0),
2818 .driver_info = (unsigned long) &fw_info,
2821 /* "Gadget Zero" firmware runs under Linux */
2822 { USB_DEVICE(0x0525, 0xa4a0),
2823 .driver_info = (unsigned long) &gz_info,
2826 /* so does a user-mode variant */
2827 { USB_DEVICE(0x0525, 0xa4a4),
2828 .driver_info = (unsigned long) &um_info,
2831 /* ... and a user-mode variant that talks iso */
2832 { USB_DEVICE(0x0525, 0xa4a3),
2833 .driver_info = (unsigned long) &um2_info,
2837 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2838 /* this does not coexist with the real Keyspan 19qi driver! */
2839 { USB_DEVICE(0x06cd, 0x010b),
2840 .driver_info = (unsigned long) &ez1_info,
2844 /*-------------------------------------------------------------*/
2847 /* iBOT2 makes a nice source of high speed bulk-in data */
2848 /* this does not coexist with a real iBOT2 driver! */
2849 { USB_DEVICE(0x0b62, 0x0059),
2850 .driver_info = (unsigned long) &ibot2_info,
2854 /*-------------------------------------------------------------*/
2857 /* module params can specify devices to use for control tests */
2858 { .driver_info = (unsigned long) &generic_info, },
2861 /*-------------------------------------------------------------*/
2865 MODULE_DEVICE_TABLE(usb, id_table);
2867 static struct usb_driver usbtest_driver = {
2869 .id_table = id_table,
2870 .probe = usbtest_probe,
2871 .unlocked_ioctl = usbtest_ioctl,
2872 .disconnect = usbtest_disconnect,
2873 .suspend = usbtest_suspend,
2874 .resume = usbtest_resume,
2877 /*-------------------------------------------------------------------------*/
2879 static int __init usbtest_init(void)
2883 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product);
2885 return usb_register(&usbtest_driver);
2887 module_init(usbtest_init);
2889 static void __exit usbtest_exit(void)
2891 usb_deregister(&usbtest_driver);
2893 module_exit(usbtest_exit);
2895 MODULE_DESCRIPTION("USB Core/HCD Testing Driver");
2896 MODULE_LICENSE("GPL");