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? */
26 /* Parameter for usbtest driver. */
27 struct usbtest_param_32 {
29 __u32 test_num; /* 0..(TEST_CASES-1) */
41 * Compat parameter to the usbtest driver.
42 * This supports older user space binaries compiled with 64 bit compiler.
44 struct usbtest_param_64 {
46 __u32 test_num; /* 0..(TEST_CASES-1) */
57 /* IOCTL interface to the driver. */
58 #define USBTEST_REQUEST_32 _IOWR('U', 100, struct usbtest_param_32)
59 /* COMPAT IOCTL interface to the driver. */
60 #define USBTEST_REQUEST_64 _IOWR('U', 100, struct usbtest_param_64)
62 /*-------------------------------------------------------------------------*/
64 #define GENERIC /* let probe() bind using module params */
66 /* Some devices that can be used for testing will have "real" drivers.
67 * Entries for those need to be enabled here by hand, after disabling
70 //#define IBOT2 /* grab iBOT2 webcams */
71 //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */
73 /*-------------------------------------------------------------------------*/
77 u8 ep_in; /* bulk/intr source */
78 u8 ep_out; /* bulk/intr sink */
81 unsigned iso:1; /* try iso in/out */
82 unsigned intr:1; /* try interrupt in/out */
86 /* this is accessed only through usbfs ioctl calls.
87 * one ioctl to issue a test ... one lock per device.
88 * tests create other threads if they need them.
89 * urbs and buffers are allocated dynamically,
90 * and data generated deterministically.
93 struct usb_interface *intf;
94 struct usbtest_info *info;
101 struct usb_endpoint_descriptor *iso_in, *iso_out;
102 struct usb_endpoint_descriptor *int_in, *int_out;
105 #define TBUF_SIZE 256
109 static struct usb_device *testdev_to_usbdev(struct usbtest_dev *test)
111 return interface_to_usbdev(test->intf);
114 /* set up all urbs so they can be used with either bulk or interrupt */
115 #define INTERRUPT_RATE 1 /* msec/transfer */
117 #define ERROR(tdev, fmt, args...) \
118 dev_err(&(tdev)->intf->dev , fmt , ## args)
119 #define WARNING(tdev, fmt, args...) \
120 dev_warn(&(tdev)->intf->dev , fmt , ## args)
122 #define GUARD_BYTE 0xA5
123 #define MAX_SGLEN 128
125 /*-------------------------------------------------------------------------*/
128 get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf)
131 struct usb_host_interface *alt;
132 struct usb_host_endpoint *in, *out;
133 struct usb_host_endpoint *iso_in, *iso_out;
134 struct usb_host_endpoint *int_in, *int_out;
135 struct usb_device *udev;
137 for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
141 iso_in = iso_out = NULL;
142 int_in = int_out = NULL;
143 alt = intf->altsetting + tmp;
145 if (override_alt >= 0 &&
146 override_alt != alt->desc.bAlternateSetting)
149 /* take the first altsetting with in-bulk + out-bulk;
150 * ignore other endpoints and altsettings.
152 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
153 struct usb_host_endpoint *e;
155 e = alt->endpoint + ep;
156 switch (usb_endpoint_type(&e->desc)) {
157 case USB_ENDPOINT_XFER_BULK:
159 case USB_ENDPOINT_XFER_INT:
162 case USB_ENDPOINT_XFER_ISOC:
169 if (usb_endpoint_dir_in(&e->desc)) {
178 if (usb_endpoint_dir_in(&e->desc)) {
187 if (usb_endpoint_dir_in(&e->desc)) {
195 if ((in && out) || iso_in || iso_out || int_in || int_out)
201 udev = testdev_to_usbdev(dev);
202 dev->info->alt = alt->desc.bAlternateSetting;
203 if (alt->desc.bAlternateSetting != 0) {
204 tmp = usb_set_interface(udev,
205 alt->desc.bInterfaceNumber,
206 alt->desc.bAlternateSetting);
212 dev->in_pipe = usb_rcvbulkpipe(udev,
213 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
214 dev->out_pipe = usb_sndbulkpipe(udev,
215 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
218 dev->iso_in = &iso_in->desc;
219 dev->in_iso_pipe = usb_rcvisocpipe(udev,
220 iso_in->desc.bEndpointAddress
221 & USB_ENDPOINT_NUMBER_MASK);
225 dev->iso_out = &iso_out->desc;
226 dev->out_iso_pipe = usb_sndisocpipe(udev,
227 iso_out->desc.bEndpointAddress
228 & USB_ENDPOINT_NUMBER_MASK);
232 dev->int_in = &int_in->desc;
233 dev->in_int_pipe = usb_rcvintpipe(udev,
234 int_in->desc.bEndpointAddress
235 & USB_ENDPOINT_NUMBER_MASK);
239 dev->int_out = &int_out->desc;
240 dev->out_int_pipe = usb_sndintpipe(udev,
241 int_out->desc.bEndpointAddress
242 & USB_ENDPOINT_NUMBER_MASK);
247 /*-------------------------------------------------------------------------*/
249 /* Support for testing basic non-queued I/O streams.
251 * These just package urbs as requests that can be easily canceled.
252 * Each urb's data buffer is dynamically allocated; callers can fill
253 * them with non-zero test data (or test for it) when appropriate.
256 static void simple_callback(struct urb *urb)
258 complete(urb->context);
261 static struct urb *usbtest_alloc_urb(
262 struct usb_device *udev,
265 unsigned transfer_flags,
268 usb_complete_t complete_fn)
272 urb = usb_alloc_urb(0, GFP_KERNEL);
277 usb_fill_int_urb(urb, udev, pipe, NULL, bytes, complete_fn,
280 usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, complete_fn,
283 urb->interval = (udev->speed == USB_SPEED_HIGH)
284 ? (INTERRUPT_RATE << 3)
286 urb->transfer_flags = transfer_flags;
287 if (usb_pipein(pipe))
288 urb->transfer_flags |= URB_SHORT_NOT_OK;
290 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
291 urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset,
292 GFP_KERNEL, &urb->transfer_dma);
294 urb->transfer_buffer = kmalloc(bytes + offset, GFP_KERNEL);
296 if (!urb->transfer_buffer) {
301 /* To test unaligned transfers add an offset and fill the
302 unused memory with a guard value */
304 memset(urb->transfer_buffer, GUARD_BYTE, offset);
305 urb->transfer_buffer += offset;
306 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
307 urb->transfer_dma += offset;
310 /* For inbound transfers use guard byte so that test fails if
311 data not correctly copied */
312 memset(urb->transfer_buffer,
313 usb_pipein(urb->pipe) ? GUARD_BYTE : 0,
318 static struct urb *simple_alloc_urb(
319 struct usb_device *udev,
324 return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0,
325 bInterval, simple_callback);
328 static struct urb *complicated_alloc_urb(
329 struct usb_device *udev,
334 return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0,
335 bInterval, complicated_callback);
338 static unsigned pattern;
339 static unsigned mod_pattern;
340 module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR);
341 MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)");
343 static unsigned get_maxpacket(struct usb_device *udev, int pipe)
345 struct usb_host_endpoint *ep;
347 ep = usb_pipe_endpoint(udev, pipe);
348 return le16_to_cpup(&ep->desc.wMaxPacketSize);
351 static void simple_fill_buf(struct urb *urb)
354 u8 *buf = urb->transfer_buffer;
355 unsigned len = urb->transfer_buffer_length;
365 maxpacket = get_maxpacket(urb->dev, urb->pipe);
366 for (i = 0; i < len; i++)
367 *buf++ = (u8) ((i % maxpacket) % 63);
372 static inline unsigned long buffer_offset(void *buf)
374 return (unsigned long)buf & (ARCH_KMALLOC_MINALIGN - 1);
377 static int check_guard_bytes(struct usbtest_dev *tdev, struct urb *urb)
379 u8 *buf = urb->transfer_buffer;
380 u8 *guard = buf - buffer_offset(buf);
383 for (i = 0; guard < buf; i++, guard++) {
384 if (*guard != GUARD_BYTE) {
385 ERROR(tdev, "guard byte[%d] %d (not %d)\n",
386 i, *guard, GUARD_BYTE);
393 static int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
397 u8 *buf = urb->transfer_buffer;
398 unsigned len = urb->actual_length;
399 unsigned maxpacket = get_maxpacket(urb->dev, urb->pipe);
401 int ret = check_guard_bytes(tdev, urb);
405 for (i = 0; i < len; i++, buf++) {
407 /* all-zeroes has no synchronization issues */
411 /* mod63 stays in sync with short-terminated transfers,
412 * or otherwise when host and gadget agree on how large
413 * each usb transfer request should be. resync is done
414 * with set_interface or set_config.
417 expected = (i % maxpacket) % 63;
419 /* always fail unsupported patterns */
424 if (*buf == expected)
426 ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected);
432 static void simple_free_urb(struct urb *urb)
434 unsigned long offset = buffer_offset(urb->transfer_buffer);
436 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
439 urb->transfer_buffer_length + offset,
440 urb->transfer_buffer - offset,
441 urb->transfer_dma - offset);
443 kfree(urb->transfer_buffer - offset);
447 static int simple_io(
448 struct usbtest_dev *tdev,
456 struct usb_device *udev = urb->dev;
457 int max = urb->transfer_buffer_length;
458 struct completion completion;
460 unsigned long expire;
462 urb->context = &completion;
463 while (retval == 0 && iterations-- > 0) {
464 init_completion(&completion);
465 if (usb_pipeout(urb->pipe)) {
466 simple_fill_buf(urb);
467 urb->transfer_flags |= URB_ZERO_PACKET;
469 retval = usb_submit_urb(urb, GFP_KERNEL);
473 expire = msecs_to_jiffies(SIMPLE_IO_TIMEOUT);
474 if (!wait_for_completion_timeout(&completion, expire)) {
476 retval = (urb->status == -ENOENT ?
477 -ETIMEDOUT : urb->status);
479 retval = urb->status;
483 if (retval == 0 && usb_pipein(urb->pipe))
484 retval = simple_check_buf(tdev, urb);
487 int len = urb->transfer_buffer_length;
492 len = (vary < max) ? vary : max;
493 urb->transfer_buffer_length = len;
496 /* FIXME if endpoint halted, clear halt (and log) */
498 urb->transfer_buffer_length = max;
500 if (expected != retval)
502 "%s failed, iterations left %d, status %d (not %d)\n",
503 label, iterations, retval, expected);
508 /*-------------------------------------------------------------------------*/
510 /* We use scatterlist primitives to test queued I/O.
511 * Yes, this also tests the scatterlist primitives.
514 static void free_sglist(struct scatterlist *sg, int nents)
520 for (i = 0; i < nents; i++) {
521 if (!sg_page(&sg[i]))
523 kfree(sg_virt(&sg[i]));
528 static struct scatterlist *
529 alloc_sglist(int nents, int max, int vary, struct usbtest_dev *dev, int pipe)
531 struct scatterlist *sg;
535 get_maxpacket(interface_to_usbdev(dev->intf), pipe);
540 sg = kmalloc_array(nents, sizeof(*sg), GFP_KERNEL);
543 sg_init_table(sg, nents);
545 for (i = 0; i < nents; i++) {
549 buf = kzalloc(size, GFP_KERNEL);
555 /* kmalloc pages are always physically contiguous! */
556 sg_set_buf(&sg[i], buf, size);
563 for (j = 0; j < size; j++)
564 *buf++ = (u8) ((j % maxpacket) % 63);
572 size = (vary < max) ? vary : max;
579 static void sg_timeout(unsigned long _req)
581 struct usb_sg_request *req = (struct usb_sg_request *) _req;
583 req->status = -ETIMEDOUT;
587 static int perform_sglist(
588 struct usbtest_dev *tdev,
591 struct usb_sg_request *req,
592 struct scatterlist *sg,
596 struct usb_device *udev = testdev_to_usbdev(tdev);
598 struct timer_list sg_timer;
600 setup_timer_on_stack(&sg_timer, sg_timeout, (unsigned long) req);
602 while (retval == 0 && iterations-- > 0) {
603 retval = usb_sg_init(req, udev, pipe,
604 (udev->speed == USB_SPEED_HIGH)
605 ? (INTERRUPT_RATE << 3)
607 sg, nents, 0, GFP_KERNEL);
611 mod_timer(&sg_timer, jiffies +
612 msecs_to_jiffies(SIMPLE_IO_TIMEOUT));
614 del_timer_sync(&sg_timer);
615 retval = req->status;
617 /* FIXME check resulting data pattern */
619 /* FIXME if endpoint halted, clear halt (and log) */
622 /* FIXME for unlink or fault handling tests, don't report
623 * failure if retval is as we expected ...
626 ERROR(tdev, "perform_sglist failed, "
627 "iterations left %d, status %d\n",
633 /*-------------------------------------------------------------------------*/
635 /* unqueued control message testing
637 * there's a nice set of device functional requirements in chapter 9 of the
638 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
639 * special test firmware.
641 * we know the device is configured (or suspended) by the time it's visible
642 * through usbfs. we can't change that, so we won't test enumeration (which
643 * worked 'well enough' to get here, this time), power management (ditto),
644 * or remote wakeup (which needs human interaction).
647 static unsigned realworld = 1;
648 module_param(realworld, uint, 0);
649 MODULE_PARM_DESC(realworld, "clear to demand stricter spec compliance");
651 static int get_altsetting(struct usbtest_dev *dev)
653 struct usb_interface *iface = dev->intf;
654 struct usb_device *udev = interface_to_usbdev(iface);
657 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
658 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
659 0, iface->altsetting[0].desc.bInterfaceNumber,
660 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
672 static int set_altsetting(struct usbtest_dev *dev, int alternate)
674 struct usb_interface *iface = dev->intf;
675 struct usb_device *udev;
677 if (alternate < 0 || alternate >= 256)
680 udev = interface_to_usbdev(iface);
681 return usb_set_interface(udev,
682 iface->altsetting[0].desc.bInterfaceNumber,
686 static int is_good_config(struct usbtest_dev *tdev, int len)
688 struct usb_config_descriptor *config;
690 if (len < sizeof(*config))
692 config = (struct usb_config_descriptor *) tdev->buf;
694 switch (config->bDescriptorType) {
696 case USB_DT_OTHER_SPEED_CONFIG:
697 if (config->bLength != 9) {
698 ERROR(tdev, "bogus config descriptor length\n");
701 /* this bit 'must be 1' but often isn't */
702 if (!realworld && !(config->bmAttributes & 0x80)) {
703 ERROR(tdev, "high bit of config attributes not set\n");
706 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
707 ERROR(tdev, "reserved config bits set\n");
715 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
717 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
719 ERROR(tdev, "bogus config descriptor read size\n");
723 static int is_good_ext(struct usbtest_dev *tdev, u8 *buf)
725 struct usb_ext_cap_descriptor *ext;
728 ext = (struct usb_ext_cap_descriptor *) buf;
730 if (ext->bLength != USB_DT_USB_EXT_CAP_SIZE) {
731 ERROR(tdev, "bogus usb 2.0 extension descriptor length\n");
735 attr = le32_to_cpu(ext->bmAttributes);
736 /* bits[1:15] is used and others are reserved */
737 if (attr & ~0xfffe) { /* reserved == 0 */
738 ERROR(tdev, "reserved bits set\n");
745 static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf)
747 struct usb_ss_cap_descriptor *ss;
749 ss = (struct usb_ss_cap_descriptor *) buf;
751 if (ss->bLength != USB_DT_USB_SS_CAP_SIZE) {
752 ERROR(tdev, "bogus superspeed device capability descriptor length\n");
757 * only bit[1] of bmAttributes is used for LTM and others are
760 if (ss->bmAttributes & ~0x02) { /* reserved == 0 */
761 ERROR(tdev, "reserved bits set in bmAttributes\n");
765 /* bits[0:3] of wSpeedSupported is used and others are reserved */
766 if (le16_to_cpu(ss->wSpeedSupported) & ~0x0f) { /* reserved == 0 */
767 ERROR(tdev, "reserved bits set in wSpeedSupported\n");
774 static int is_good_con_id(struct usbtest_dev *tdev, u8 *buf)
776 struct usb_ss_container_id_descriptor *con_id;
778 con_id = (struct usb_ss_container_id_descriptor *) buf;
780 if (con_id->bLength != USB_DT_USB_SS_CONTN_ID_SIZE) {
781 ERROR(tdev, "bogus container id descriptor length\n");
785 if (con_id->bReserved) { /* reserved == 0 */
786 ERROR(tdev, "reserved bits set\n");
793 /* sanity test for standard requests working with usb_control_mesg() and some
794 * of the utility functions which use it.
796 * this doesn't test how endpoint halts behave or data toggles get set, since
797 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
798 * halt or toggle). toggle testing is impractical without support from hcds.
800 * this avoids failing devices linux would normally work with, by not testing
801 * config/altsetting operations for devices that only support their defaults.
802 * such devices rarely support those needless operations.
804 * NOTE that since this is a sanity test, it's not examining boundary cases
805 * to see if usbcore, hcd, and device all behave right. such testing would
806 * involve varied read sizes and other operation sequences.
808 static int ch9_postconfig(struct usbtest_dev *dev)
810 struct usb_interface *iface = dev->intf;
811 struct usb_device *udev = interface_to_usbdev(iface);
814 /* [9.2.3] if there's more than one altsetting, we need to be able to
815 * set and get each one. mostly trusts the descriptors from usbcore.
817 for (i = 0; i < iface->num_altsetting; i++) {
819 /* 9.2.3 constrains the range here */
820 alt = iface->altsetting[i].desc.bAlternateSetting;
821 if (alt < 0 || alt >= iface->num_altsetting) {
823 "invalid alt [%d].bAltSetting = %d\n",
827 /* [real world] get/set unimplemented if there's only one */
828 if (realworld && iface->num_altsetting == 1)
831 /* [9.4.10] set_interface */
832 retval = set_altsetting(dev, alt);
834 dev_err(&iface->dev, "can't set_interface = %d, %d\n",
839 /* [9.4.4] get_interface always works */
840 retval = get_altsetting(dev);
842 dev_err(&iface->dev, "get alt should be %d, was %d\n",
844 return (retval < 0) ? retval : -EDOM;
849 /* [real world] get_config unimplemented if there's only one */
850 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
851 int expected = udev->actconfig->desc.bConfigurationValue;
853 /* [9.4.2] get_configuration always works
854 * ... although some cheap devices (like one TI Hub I've got)
855 * won't return config descriptors except before set_config.
857 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
858 USB_REQ_GET_CONFIGURATION,
859 USB_DIR_IN | USB_RECIP_DEVICE,
860 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
861 if (retval != 1 || dev->buf[0] != expected) {
862 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n",
863 retval, dev->buf[0], expected);
864 return (retval < 0) ? retval : -EDOM;
868 /* there's always [9.4.3] a device descriptor [9.6.1] */
869 retval = usb_get_descriptor(udev, USB_DT_DEVICE, 0,
870 dev->buf, sizeof(udev->descriptor));
871 if (retval != sizeof(udev->descriptor)) {
872 dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
873 return (retval < 0) ? retval : -EDOM;
877 * there's always [9.4.3] a bos device descriptor [9.6.2] in USB
880 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0210) {
881 struct usb_bos_descriptor *bos = NULL;
882 struct usb_dev_cap_header *header = NULL;
883 unsigned total, num, length;
886 retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
887 sizeof(*udev->bos->desc));
888 if (retval != sizeof(*udev->bos->desc)) {
889 dev_err(&iface->dev, "bos descriptor --> %d\n", retval);
890 return (retval < 0) ? retval : -EDOM;
893 bos = (struct usb_bos_descriptor *)dev->buf;
894 total = le16_to_cpu(bos->wTotalLength);
895 num = bos->bNumDeviceCaps;
897 if (total > TBUF_SIZE)
901 * get generic device-level capability descriptors [9.6.2]
904 retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
906 if (retval != total) {
907 dev_err(&iface->dev, "bos descriptor set --> %d\n",
909 return (retval < 0) ? retval : -EDOM;
912 length = sizeof(*udev->bos->desc);
914 for (i = 0; i < num; i++) {
916 if (buf + sizeof(struct usb_dev_cap_header) >
920 header = (struct usb_dev_cap_header *)buf;
921 length = header->bLength;
923 if (header->bDescriptorType !=
924 USB_DT_DEVICE_CAPABILITY) {
925 dev_warn(&udev->dev, "not device capability descriptor, skip\n");
929 switch (header->bDevCapabilityType) {
930 case USB_CAP_TYPE_EXT:
931 if (buf + USB_DT_USB_EXT_CAP_SIZE >
933 !is_good_ext(dev, buf)) {
934 dev_err(&iface->dev, "bogus usb 2.0 extension descriptor\n");
938 case USB_SS_CAP_TYPE:
939 if (buf + USB_DT_USB_SS_CAP_SIZE >
941 !is_good_ss_cap(dev, buf)) {
942 dev_err(&iface->dev, "bogus superspeed device capability descriptor\n");
946 case CONTAINER_ID_TYPE:
947 if (buf + USB_DT_USB_SS_CONTN_ID_SIZE >
949 !is_good_con_id(dev, buf)) {
950 dev_err(&iface->dev, "bogus container id descriptor\n");
960 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
961 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
962 retval = usb_get_descriptor(udev, USB_DT_CONFIG, i,
963 dev->buf, TBUF_SIZE);
964 if (!is_good_config(dev, retval)) {
966 "config [%d] descriptor --> %d\n",
968 return (retval < 0) ? retval : -EDOM;
971 /* FIXME cross-checking udev->config[i] to make sure usbcore
972 * parsed it right (etc) would be good testing paranoia
976 /* and sometimes [9.2.6.6] speed dependent descriptors */
977 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
978 struct usb_qualifier_descriptor *d = NULL;
980 /* device qualifier [9.6.2] */
981 retval = usb_get_descriptor(udev,
982 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
983 sizeof(struct usb_qualifier_descriptor));
984 if (retval == -EPIPE) {
985 if (udev->speed == USB_SPEED_HIGH) {
987 "hs dev qualifier --> %d\n",
989 return (retval < 0) ? retval : -EDOM;
991 /* usb2.0 but not high-speed capable; fine */
992 } else if (retval != sizeof(struct usb_qualifier_descriptor)) {
993 dev_err(&iface->dev, "dev qualifier --> %d\n", retval);
994 return (retval < 0) ? retval : -EDOM;
996 d = (struct usb_qualifier_descriptor *) dev->buf;
998 /* might not have [9.6.2] any other-speed configs [9.6.4] */
1000 unsigned max = d->bNumConfigurations;
1001 for (i = 0; i < max; i++) {
1002 retval = usb_get_descriptor(udev,
1003 USB_DT_OTHER_SPEED_CONFIG, i,
1004 dev->buf, TBUF_SIZE);
1005 if (!is_good_config(dev, retval)) {
1006 dev_err(&iface->dev,
1007 "other speed config --> %d\n",
1009 return (retval < 0) ? retval : -EDOM;
1014 /* FIXME fetch strings from at least the device descriptor */
1016 /* [9.4.5] get_status always works */
1017 retval = usb_get_status(udev, USB_RECIP_DEVICE, 0, dev->buf);
1019 dev_err(&iface->dev, "get dev status --> %d\n", retval);
1023 /* FIXME configuration.bmAttributes says if we could try to set/clear
1024 * the device's remote wakeup feature ... if we can, test that here
1027 retval = usb_get_status(udev, USB_RECIP_INTERFACE,
1028 iface->altsetting[0].desc.bInterfaceNumber, dev->buf);
1030 dev_err(&iface->dev, "get interface status --> %d\n", retval);
1033 /* FIXME get status for each endpoint in the interface */
1038 /*-------------------------------------------------------------------------*/
1040 /* use ch9 requests to test whether:
1041 * (a) queues work for control, keeping N subtests queued and
1042 * active (auto-resubmit) for M loops through the queue.
1043 * (b) protocol stalls (control-only) will autorecover.
1044 * it's not like bulk/intr; no halt clearing.
1045 * (c) short control reads are reported and handled.
1046 * (d) queues are always processed in-order
1051 struct usbtest_dev *dev;
1052 struct completion complete;
1057 struct usbtest_param_32 *param;
1061 #define NUM_SUBCASES 16 /* how many test subcases here? */
1064 struct usb_ctrlrequest setup;
1069 static void ctrl_complete(struct urb *urb)
1071 struct ctrl_ctx *ctx = urb->context;
1072 struct usb_ctrlrequest *reqp;
1073 struct subcase *subcase;
1074 int status = urb->status;
1076 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
1077 subcase = container_of(reqp, struct subcase, setup);
1079 spin_lock(&ctx->lock);
1083 /* queue must transfer and complete in fifo order, unless
1084 * usb_unlink_urb() is used to unlink something not at the
1085 * physical queue head (not tested).
1087 if (subcase->number > 0) {
1088 if ((subcase->number - ctx->last) != 1) {
1090 "subcase %d completed out of order, last %d\n",
1091 subcase->number, ctx->last);
1093 ctx->last = subcase->number;
1097 ctx->last = subcase->number;
1099 /* succeed or fault in only one way? */
1100 if (status == subcase->expected)
1103 /* async unlink for cleanup? */
1104 else if (status != -ECONNRESET) {
1106 /* some faults are allowed, not required */
1107 if (subcase->expected > 0 && (
1108 ((status == -subcase->expected /* happened */
1109 || status == 0)))) /* didn't */
1111 /* sometimes more than one fault is allowed */
1112 else if (subcase->number == 12 && status == -EPIPE)
1115 ERROR(ctx->dev, "subtest %d error, status %d\n",
1116 subcase->number, status);
1119 /* unexpected status codes mean errors; ideally, in hardware */
1122 if (ctx->status == 0) {
1125 ctx->status = status;
1126 ERROR(ctx->dev, "control queue %02x.%02x, err %d, "
1127 "%d left, subcase %d, len %d/%d\n",
1128 reqp->bRequestType, reqp->bRequest,
1129 status, ctx->count, subcase->number,
1131 urb->transfer_buffer_length);
1133 /* FIXME this "unlink everything" exit route should
1134 * be a separate test case.
1137 /* unlink whatever's still pending */
1138 for (i = 1; i < ctx->param->sglen; i++) {
1139 struct urb *u = ctx->urb[
1140 (i + subcase->number)
1141 % ctx->param->sglen];
1143 if (u == urb || !u->dev)
1145 spin_unlock(&ctx->lock);
1146 status = usb_unlink_urb(u);
1147 spin_lock(&ctx->lock);
1154 ERROR(ctx->dev, "urb unlink --> %d\n",
1158 status = ctx->status;
1162 /* resubmit if we need to, else mark this as done */
1163 if ((status == 0) && (ctx->pending < ctx->count)) {
1164 status = usb_submit_urb(urb, GFP_ATOMIC);
1167 "can't resubmit ctrl %02x.%02x, err %d\n",
1168 reqp->bRequestType, reqp->bRequest, status);
1175 /* signal completion when nothing's queued */
1176 if (ctx->pending == 0)
1177 complete(&ctx->complete);
1178 spin_unlock(&ctx->lock);
1182 test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param)
1184 struct usb_device *udev = testdev_to_usbdev(dev);
1186 struct ctrl_ctx context;
1189 if (param->sglen == 0 || param->iterations > UINT_MAX / param->sglen)
1192 spin_lock_init(&context.lock);
1194 init_completion(&context.complete);
1195 context.count = param->sglen * param->iterations;
1196 context.pending = 0;
1197 context.status = -ENOMEM;
1198 context.param = param;
1201 /* allocate and init the urbs we'll queue.
1202 * as with bulk/intr sglists, sglen is the queue depth; it also
1203 * controls which subtests run (more tests than sglen) or rerun.
1205 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);
1208 for (i = 0; i < param->sglen; i++) {
1209 int pipe = usb_rcvctrlpipe(udev, 0);
1212 struct usb_ctrlrequest req;
1213 struct subcase *reqp;
1215 /* sign of this variable means:
1216 * -: tested code must return this (negative) error code
1217 * +: tested code may return this (negative too) error code
1221 /* requests here are mostly expected to succeed on any
1222 * device, but some are chosen to trigger protocol stalls
1225 memset(&req, 0, sizeof(req));
1226 req.bRequest = USB_REQ_GET_DESCRIPTOR;
1227 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
1229 switch (i % NUM_SUBCASES) {
1230 case 0: /* get device descriptor */
1231 req.wValue = cpu_to_le16(USB_DT_DEVICE << 8);
1232 len = sizeof(struct usb_device_descriptor);
1234 case 1: /* get first config descriptor (only) */
1235 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1236 len = sizeof(struct usb_config_descriptor);
1238 case 2: /* get altsetting (OFTEN STALLS) */
1239 req.bRequest = USB_REQ_GET_INTERFACE;
1240 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
1241 /* index = 0 means first interface */
1245 case 3: /* get interface status */
1246 req.bRequest = USB_REQ_GET_STATUS;
1247 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
1251 case 4: /* get device status */
1252 req.bRequest = USB_REQ_GET_STATUS;
1253 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
1256 case 5: /* get device qualifier (MAY STALL) */
1257 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
1258 len = sizeof(struct usb_qualifier_descriptor);
1259 if (udev->speed != USB_SPEED_HIGH)
1262 case 6: /* get first config descriptor, plus interface */
1263 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1264 len = sizeof(struct usb_config_descriptor);
1265 len += sizeof(struct usb_interface_descriptor);
1267 case 7: /* get interface descriptor (ALWAYS STALLS) */
1268 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
1269 /* interface == 0 */
1270 len = sizeof(struct usb_interface_descriptor);
1273 /* NOTE: two consecutive stalls in the queue here.
1274 * that tests fault recovery a bit more aggressively. */
1275 case 8: /* clear endpoint halt (MAY STALL) */
1276 req.bRequest = USB_REQ_CLEAR_FEATURE;
1277 req.bRequestType = USB_RECIP_ENDPOINT;
1278 /* wValue 0 == ep halt */
1279 /* wIndex 0 == ep0 (shouldn't halt!) */
1281 pipe = usb_sndctrlpipe(udev, 0);
1284 case 9: /* get endpoint status */
1285 req.bRequest = USB_REQ_GET_STATUS;
1286 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
1290 case 10: /* trigger short read (EREMOTEIO) */
1291 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1293 expected = -EREMOTEIO;
1295 /* NOTE: two consecutive _different_ faults in the queue. */
1296 case 11: /* get endpoint descriptor (ALWAYS STALLS) */
1297 req.wValue = cpu_to_le16(USB_DT_ENDPOINT << 8);
1299 len = sizeof(struct usb_interface_descriptor);
1302 /* NOTE: sometimes even a third fault in the queue! */
1303 case 12: /* get string 0 descriptor (MAY STALL) */
1304 req.wValue = cpu_to_le16(USB_DT_STRING << 8);
1305 /* string == 0, for language IDs */
1306 len = sizeof(struct usb_interface_descriptor);
1307 /* may succeed when > 4 languages */
1308 expected = EREMOTEIO; /* or EPIPE, if no strings */
1310 case 13: /* short read, resembling case 10 */
1311 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1312 /* last data packet "should" be DATA1, not DATA0 */
1313 if (udev->speed == USB_SPEED_SUPER)
1316 len = 1024 - udev->descriptor.bMaxPacketSize0;
1317 expected = -EREMOTEIO;
1319 case 14: /* short read; try to fill the last packet */
1320 req.wValue = cpu_to_le16((USB_DT_DEVICE << 8) | 0);
1321 /* device descriptor size == 18 bytes */
1322 len = udev->descriptor.bMaxPacketSize0;
1323 if (udev->speed == USB_SPEED_SUPER)
1333 expected = -EREMOTEIO;
1336 req.wValue = cpu_to_le16(USB_DT_BOS << 8);
1338 len = le16_to_cpu(udev->bos->desc->wTotalLength);
1340 len = sizeof(struct usb_bos_descriptor);
1341 if (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0201)
1345 ERROR(dev, "bogus number of ctrl queue testcases!\n");
1346 context.status = -EINVAL;
1349 req.wLength = cpu_to_le16(len);
1350 urb[i] = u = simple_alloc_urb(udev, pipe, len, 0);
1354 reqp = kmalloc(sizeof(*reqp), GFP_KERNEL);
1358 reqp->number = i % NUM_SUBCASES;
1359 reqp->expected = expected;
1360 u->setup_packet = (char *) &reqp->setup;
1362 u->context = &context;
1363 u->complete = ctrl_complete;
1366 /* queue the urbs */
1368 spin_lock_irq(&context.lock);
1369 for (i = 0; i < param->sglen; i++) {
1370 context.status = usb_submit_urb(urb[i], GFP_ATOMIC);
1371 if (context.status != 0) {
1372 ERROR(dev, "can't submit urb[%d], status %d\n",
1374 context.count = context.pending;
1379 spin_unlock_irq(&context.lock);
1381 /* FIXME set timer and time out; provide a disconnect hook */
1383 /* wait for the last one to complete */
1384 if (context.pending > 0)
1385 wait_for_completion(&context.complete);
1388 for (i = 0; i < param->sglen; i++) {
1392 kfree(urb[i]->setup_packet);
1393 simple_free_urb(urb[i]);
1396 return context.status;
1401 /*-------------------------------------------------------------------------*/
1403 static void unlink1_callback(struct urb *urb)
1405 int status = urb->status;
1407 /* we "know" -EPIPE (stall) never happens */
1409 status = usb_submit_urb(urb, GFP_ATOMIC);
1411 urb->status = status;
1412 complete(urb->context);
1416 static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async)
1419 struct completion completion;
1422 init_completion(&completion);
1423 urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size, 0);
1426 urb->context = &completion;
1427 urb->complete = unlink1_callback;
1429 if (usb_pipeout(urb->pipe)) {
1430 simple_fill_buf(urb);
1431 urb->transfer_flags |= URB_ZERO_PACKET;
1434 /* keep the endpoint busy. there are lots of hc/hcd-internal
1435 * states, and testing should get to all of them over time.
1437 * FIXME want additional tests for when endpoint is STALLing
1438 * due to errors, or is just NAKing requests.
1440 retval = usb_submit_urb(urb, GFP_KERNEL);
1442 dev_err(&dev->intf->dev, "submit fail %d\n", retval);
1446 /* unlinking that should always work. variable delay tests more
1447 * hcd states and code paths, even with little other system load.
1449 msleep(jiffies % (2 * INTERRUPT_RATE));
1451 while (!completion_done(&completion)) {
1452 retval = usb_unlink_urb(urb);
1454 if (retval == 0 && usb_pipein(urb->pipe))
1455 retval = simple_check_buf(dev, urb);
1460 /* we can't unlink urbs while they're completing
1461 * or if they've completed, and we haven't
1462 * resubmitted. "normal" drivers would prevent
1463 * resubmission, but since we're testing unlink
1466 ERROR(dev, "unlink retry\n");
1473 dev_err(&dev->intf->dev,
1474 "unlink fail %d\n", retval);
1483 wait_for_completion(&completion);
1484 retval = urb->status;
1485 simple_free_urb(urb);
1488 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1490 return (retval == -ENOENT || retval == -EPERM) ?
1494 static int unlink_simple(struct usbtest_dev *dev, int pipe, int len)
1498 /* test sync and async paths */
1499 retval = unlink1(dev, pipe, len, 1);
1501 retval = unlink1(dev, pipe, len, 0);
1505 /*-------------------------------------------------------------------------*/
1508 struct completion complete;
1515 static void unlink_queued_callback(struct urb *urb)
1517 int status = urb->status;
1518 struct queued_ctx *ctx = urb->context;
1522 if (urb == ctx->urbs[ctx->num - 4] || urb == ctx->urbs[ctx->num - 2]) {
1523 if (status == -ECONNRESET)
1525 /* What error should we report if the URB completed normally? */
1528 ctx->status = status;
1531 if (atomic_dec_and_test(&ctx->pending))
1532 complete(&ctx->complete);
1535 static int unlink_queued(struct usbtest_dev *dev, int pipe, unsigned num,
1538 struct queued_ctx ctx;
1539 struct usb_device *udev = testdev_to_usbdev(dev);
1543 int retval = -ENOMEM;
1545 init_completion(&ctx.complete);
1546 atomic_set(&ctx.pending, 1); /* One more than the actual value */
1550 buf = usb_alloc_coherent(udev, size, GFP_KERNEL, &buf_dma);
1553 memset(buf, 0, size);
1555 /* Allocate and init the urbs we'll queue */
1556 ctx.urbs = kcalloc(num, sizeof(struct urb *), GFP_KERNEL);
1559 for (i = 0; i < num; i++) {
1560 ctx.urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
1563 usb_fill_bulk_urb(ctx.urbs[i], udev, pipe, buf, size,
1564 unlink_queued_callback, &ctx);
1565 ctx.urbs[i]->transfer_dma = buf_dma;
1566 ctx.urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1568 if (usb_pipeout(ctx.urbs[i]->pipe)) {
1569 simple_fill_buf(ctx.urbs[i]);
1570 ctx.urbs[i]->transfer_flags |= URB_ZERO_PACKET;
1574 /* Submit all the URBs and then unlink URBs num - 4 and num - 2. */
1575 for (i = 0; i < num; i++) {
1576 atomic_inc(&ctx.pending);
1577 retval = usb_submit_urb(ctx.urbs[i], GFP_KERNEL);
1579 dev_err(&dev->intf->dev, "submit urbs[%d] fail %d\n",
1581 atomic_dec(&ctx.pending);
1582 ctx.status = retval;
1587 usb_unlink_urb(ctx.urbs[num - 4]);
1588 usb_unlink_urb(ctx.urbs[num - 2]);
1591 usb_unlink_urb(ctx.urbs[i]);
1594 if (atomic_dec_and_test(&ctx.pending)) /* The extra count */
1595 complete(&ctx.complete);
1596 wait_for_completion(&ctx.complete);
1597 retval = ctx.status;
1600 for (i = 0; i < num; i++)
1601 usb_free_urb(ctx.urbs[i]);
1604 usb_free_coherent(udev, size, buf, buf_dma);
1608 /*-------------------------------------------------------------------------*/
1610 static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1615 /* shouldn't look or act halted */
1616 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1618 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
1623 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status);
1626 retval = simple_io(tdev, urb, 1, 0, 0, __func__);
1632 static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1637 /* should look and act halted */
1638 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1640 ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
1645 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status);
1648 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__);
1649 if (retval != -EPIPE)
1651 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted");
1652 if (retval != -EPIPE)
1657 static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
1661 /* shouldn't look or act halted now */
1662 retval = verify_not_halted(tdev, ep, urb);
1666 /* set halt (protocol test only), verify it worked */
1667 retval = usb_control_msg(urb->dev, usb_sndctrlpipe(urb->dev, 0),
1668 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1669 USB_ENDPOINT_HALT, ep,
1670 NULL, 0, USB_CTRL_SET_TIMEOUT);
1672 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval);
1675 retval = verify_halted(tdev, ep, urb);
1679 /* clear halt anyways, else further tests will fail */
1680 ret = usb_clear_halt(urb->dev, urb->pipe);
1682 ERROR(tdev, "ep %02x couldn't clear halt, %d\n",
1688 /* clear halt (tests API + protocol), verify it worked */
1689 retval = usb_clear_halt(urb->dev, urb->pipe);
1691 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval);
1694 retval = verify_not_halted(tdev, ep, urb);
1698 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1703 static int halt_simple(struct usbtest_dev *dev)
1708 struct usb_device *udev = testdev_to_usbdev(dev);
1710 if (udev->speed == USB_SPEED_SUPER)
1711 urb = simple_alloc_urb(udev, 0, 1024, 0);
1713 urb = simple_alloc_urb(udev, 0, 512, 0);
1718 ep = usb_pipeendpoint(dev->in_pipe) | USB_DIR_IN;
1719 urb->pipe = dev->in_pipe;
1720 retval = test_halt(dev, ep, urb);
1725 if (dev->out_pipe) {
1726 ep = usb_pipeendpoint(dev->out_pipe);
1727 urb->pipe = dev->out_pipe;
1728 retval = test_halt(dev, ep, urb);
1731 simple_free_urb(urb);
1735 /*-------------------------------------------------------------------------*/
1737 /* Control OUT tests use the vendor control requests from Intel's
1738 * USB 2.0 compliance test device: write a buffer, read it back.
1740 * Intel's spec only _requires_ that it work for one packet, which
1741 * is pretty weak. Some HCDs place limits here; most devices will
1742 * need to be able to handle more than one OUT data packet. We'll
1743 * try whatever we're told to try.
1745 static int ctrl_out(struct usbtest_dev *dev,
1746 unsigned count, unsigned length, unsigned vary, unsigned offset)
1752 struct usb_device *udev;
1754 if (length < 1 || length > 0xffff || vary >= length)
1757 buf = kmalloc(length + offset, GFP_KERNEL);
1762 udev = testdev_to_usbdev(dev);
1766 /* NOTE: hardware might well act differently if we pushed it
1767 * with lots back-to-back queued requests.
1769 for (i = 0; i < count; i++) {
1770 /* write patterned data */
1771 for (j = 0; j < len; j++)
1772 buf[j] = (u8)(i + j);
1773 retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1774 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1775 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1776 if (retval != len) {
1779 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n",
1786 /* read it back -- assuming nothing intervened!! */
1787 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
1788 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1789 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1790 if (retval != len) {
1793 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n",
1800 /* fail if we can't verify */
1801 for (j = 0; j < len; j++) {
1802 if (buf[j] != (u8)(i + j)) {
1803 ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
1804 j, buf[j], (u8)(i + j));
1816 /* [real world] the "zero bytes IN" case isn't really used.
1817 * hardware can easily trip up in this weird case, since its
1818 * status stage is IN, not OUT like other ep0in transfers.
1821 len = realworld ? 1 : 0;
1825 ERROR(dev, "ctrl_out %s failed, code %d, count %d\n",
1828 kfree(buf - offset);
1832 /*-------------------------------------------------------------------------*/
1834 /* ISO/BULK tests ... mimics common usage
1835 * - buffer length is split into N packets (mostly maxpacket sized)
1836 * - multi-buffers according to sglen
1839 struct transfer_context {
1843 struct completion done;
1845 unsigned long errors;
1846 unsigned long packet_count;
1847 struct usbtest_dev *dev;
1851 static void complicated_callback(struct urb *urb)
1853 struct transfer_context *ctx = urb->context;
1855 spin_lock(&ctx->lock);
1858 ctx->packet_count += urb->number_of_packets;
1859 if (urb->error_count > 0)
1860 ctx->errors += urb->error_count;
1861 else if (urb->status != 0)
1862 ctx->errors += (ctx->is_iso ? urb->number_of_packets : 1);
1863 else if (urb->actual_length != urb->transfer_buffer_length)
1865 else if (check_guard_bytes(ctx->dev, urb) != 0)
1868 if (urb->status == 0 && ctx->count > (ctx->pending - 1)
1869 && !ctx->submit_error) {
1870 int status = usb_submit_urb(urb, GFP_ATOMIC);
1875 dev_err(&ctx->dev->intf->dev,
1876 "resubmit err %d\n",
1879 case -ENODEV: /* disconnected */
1880 case -ESHUTDOWN: /* endpoint disabled */
1881 ctx->submit_error = 1;
1887 if (ctx->pending == 0) {
1889 dev_err(&ctx->dev->intf->dev,
1890 "during the test, %lu errors out of %lu\n",
1891 ctx->errors, ctx->packet_count);
1892 complete(&ctx->done);
1895 spin_unlock(&ctx->lock);
1898 static struct urb *iso_alloc_urb(
1899 struct usb_device *udev,
1901 struct usb_endpoint_descriptor *desc,
1907 unsigned i, maxp, packets;
1909 if (bytes < 0 || !desc)
1911 maxp = 0x7ff & usb_endpoint_maxp(desc);
1912 maxp *= 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11));
1913 packets = DIV_ROUND_UP(bytes, maxp);
1915 urb = usb_alloc_urb(packets, GFP_KERNEL);
1921 urb->number_of_packets = packets;
1922 urb->transfer_buffer_length = bytes;
1923 urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset,
1925 &urb->transfer_dma);
1926 if (!urb->transfer_buffer) {
1931 memset(urb->transfer_buffer, GUARD_BYTE, offset);
1932 urb->transfer_buffer += offset;
1933 urb->transfer_dma += offset;
1935 /* For inbound transfers use guard byte so that test fails if
1936 data not correctly copied */
1937 memset(urb->transfer_buffer,
1938 usb_pipein(urb->pipe) ? GUARD_BYTE : 0,
1941 for (i = 0; i < packets; i++) {
1942 /* here, only the last packet will be short */
1943 urb->iso_frame_desc[i].length = min((unsigned) bytes, maxp);
1944 bytes -= urb->iso_frame_desc[i].length;
1946 urb->iso_frame_desc[i].offset = maxp * i;
1949 urb->complete = complicated_callback;
1950 /* urb->context = SET BY CALLER */
1951 urb->interval = 1 << (desc->bInterval - 1);
1952 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1957 test_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param,
1958 int pipe, struct usb_endpoint_descriptor *desc, unsigned offset)
1960 struct transfer_context context;
1961 struct usb_device *udev;
1963 unsigned long packets = 0;
1965 struct urb *urbs[param->sglen];
1967 memset(&context, 0, sizeof(context));
1968 context.count = param->iterations * param->sglen;
1970 context.is_iso = !!desc;
1971 init_completion(&context.done);
1972 spin_lock_init(&context.lock);
1974 udev = testdev_to_usbdev(dev);
1976 for (i = 0; i < param->sglen; i++) {
1978 urbs[i] = iso_alloc_urb(udev, pipe, desc,
1979 param->length, offset);
1981 urbs[i] = complicated_alloc_urb(udev, pipe,
1988 packets += urbs[i]->number_of_packets;
1989 urbs[i]->context = &context;
1991 packets *= param->iterations;
1993 if (context.is_iso) {
1994 dev_info(&dev->intf->dev,
1995 "iso period %d %sframes, wMaxPacket %d, transactions: %d\n",
1996 1 << (desc->bInterval - 1),
1997 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1998 usb_endpoint_maxp(desc) & 0x7ff,
1999 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11)));
2001 dev_info(&dev->intf->dev,
2002 "total %lu msec (%lu packets)\n",
2003 (packets * (1 << (desc->bInterval - 1)))
2004 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
2008 spin_lock_irq(&context.lock);
2009 for (i = 0; i < param->sglen; i++) {
2011 status = usb_submit_urb(urbs[i], GFP_ATOMIC);
2013 ERROR(dev, "submit iso[%d], error %d\n", i, status);
2015 spin_unlock_irq(&context.lock);
2019 simple_free_urb(urbs[i]);
2022 context.submit_error = 1;
2026 spin_unlock_irq(&context.lock);
2028 wait_for_completion(&context.done);
2030 for (i = 0; i < param->sglen; i++) {
2032 simple_free_urb(urbs[i]);
2035 * Isochronous transfers are expected to fail sometimes. As an
2036 * arbitrary limit, we will report an error if any submissions
2037 * fail or if the transfer failure rate is > 10%.
2041 else if (context.submit_error)
2043 else if (context.errors >
2044 (context.is_iso ? context.packet_count / 10 : 0))
2049 for (i = 0; i < param->sglen; i++) {
2051 simple_free_urb(urbs[i]);
2056 static int test_unaligned_bulk(
2057 struct usbtest_dev *tdev,
2061 unsigned transfer_flags,
2065 struct urb *urb = usbtest_alloc_urb(testdev_to_usbdev(tdev),
2066 pipe, length, transfer_flags, 1, 0, simple_callback);
2071 retval = simple_io(tdev, urb, iterations, 0, 0, label);
2072 simple_free_urb(urb);
2078 usbtest_do_ioctl(struct usb_interface *intf, struct usbtest_param_32 *param)
2080 struct usbtest_dev *dev = usb_get_intfdata(intf);
2081 struct usb_device *udev = testdev_to_usbdev(dev);
2083 struct scatterlist *sg;
2084 struct usb_sg_request req;
2086 int retval = -EOPNOTSUPP;
2088 if (param->iterations <= 0)
2091 * Just a bunch of test cases that every HCD is expected to handle.
2093 * Some may need specific firmware, though it'd be good to have
2094 * one firmware image to handle all the test cases.
2096 * FIXME add more tests! cancel requests, verify the data, control
2097 * queueing, concurrent read+write threads, and so on.
2099 switch (param->test_num) {
2102 dev_info(&intf->dev, "TEST 0: NOP\n");
2106 /* Simple non-queued bulk I/O tests */
2108 if (dev->out_pipe == 0)
2110 dev_info(&intf->dev,
2111 "TEST 1: write %d bytes %u times\n",
2112 param->length, param->iterations);
2113 urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);
2118 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2119 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");
2120 simple_free_urb(urb);
2123 if (dev->in_pipe == 0)
2125 dev_info(&intf->dev,
2126 "TEST 2: read %d bytes %u times\n",
2127 param->length, param->iterations);
2128 urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);
2133 /* FIRMWARE: bulk source (maybe generates short writes) */
2134 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");
2135 simple_free_urb(urb);
2138 if (dev->out_pipe == 0 || param->vary == 0)
2140 dev_info(&intf->dev,
2141 "TEST 3: write/%d 0..%d bytes %u times\n",
2142 param->vary, param->length, param->iterations);
2143 urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);
2148 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2149 retval = simple_io(dev, urb, param->iterations, param->vary,
2151 simple_free_urb(urb);
2154 if (dev->in_pipe == 0 || param->vary == 0)
2156 dev_info(&intf->dev,
2157 "TEST 4: read/%d 0..%d bytes %u times\n",
2158 param->vary, param->length, param->iterations);
2159 urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);
2164 /* FIRMWARE: bulk source (maybe generates short writes) */
2165 retval = simple_io(dev, urb, param->iterations, param->vary,
2167 simple_free_urb(urb);
2170 /* Queued bulk I/O tests */
2172 if (dev->out_pipe == 0 || param->sglen == 0)
2174 dev_info(&intf->dev,
2175 "TEST 5: write %d sglists %d entries of %d bytes\n",
2177 param->sglen, param->length);
2178 sg = alloc_sglist(param->sglen, param->length,
2179 0, dev, dev->out_pipe);
2184 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2185 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
2186 &req, sg, param->sglen);
2187 free_sglist(sg, param->sglen);
2191 if (dev->in_pipe == 0 || param->sglen == 0)
2193 dev_info(&intf->dev,
2194 "TEST 6: read %d sglists %d entries of %d bytes\n",
2196 param->sglen, param->length);
2197 sg = alloc_sglist(param->sglen, param->length,
2198 0, dev, dev->in_pipe);
2203 /* FIRMWARE: bulk source (maybe generates short writes) */
2204 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
2205 &req, sg, param->sglen);
2206 free_sglist(sg, param->sglen);
2209 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
2211 dev_info(&intf->dev,
2212 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
2213 param->vary, param->iterations,
2214 param->sglen, param->length);
2215 sg = alloc_sglist(param->sglen, param->length,
2216 param->vary, dev, dev->out_pipe);
2221 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2222 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
2223 &req, sg, param->sglen);
2224 free_sglist(sg, param->sglen);
2227 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
2229 dev_info(&intf->dev,
2230 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
2231 param->vary, param->iterations,
2232 param->sglen, param->length);
2233 sg = alloc_sglist(param->sglen, param->length,
2234 param->vary, dev, dev->in_pipe);
2239 /* FIRMWARE: bulk source (maybe generates short writes) */
2240 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
2241 &req, sg, param->sglen);
2242 free_sglist(sg, param->sglen);
2245 /* non-queued sanity tests for control (chapter 9 subset) */
2248 dev_info(&intf->dev,
2249 "TEST 9: ch9 (subset) control tests, %d times\n",
2251 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2252 retval = ch9_postconfig(dev);
2254 dev_err(&intf->dev, "ch9 subset failed, "
2255 "iterations left %d\n", i);
2258 /* queued control messaging */
2261 dev_info(&intf->dev,
2262 "TEST 10: queue %d control calls, %d times\n",
2265 retval = test_ctrl_queue(dev, param);
2268 /* simple non-queued unlinks (ring with one urb) */
2270 if (dev->in_pipe == 0 || !param->length)
2273 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n",
2274 param->iterations, param->length);
2275 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2276 retval = unlink_simple(dev, dev->in_pipe,
2279 dev_err(&intf->dev, "unlink reads failed %d, "
2280 "iterations left %d\n", retval, i);
2283 if (dev->out_pipe == 0 || !param->length)
2286 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n",
2287 param->iterations, param->length);
2288 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2289 retval = unlink_simple(dev, dev->out_pipe,
2292 dev_err(&intf->dev, "unlink writes failed %d, "
2293 "iterations left %d\n", retval, i);
2298 if (dev->out_pipe == 0 && dev->in_pipe == 0)
2301 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n",
2303 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2304 retval = halt_simple(dev);
2307 ERROR(dev, "halts failed, iterations left %d\n", i);
2310 /* control write tests */
2312 if (!dev->info->ctrl_out)
2314 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
2316 realworld ? 1 : 0, param->length,
2318 retval = ctrl_out(dev, param->iterations,
2319 param->length, param->vary, 0);
2322 /* iso write tests */
2324 if (dev->out_iso_pipe == 0 || param->sglen == 0)
2326 dev_info(&intf->dev,
2327 "TEST 15: write %d iso, %d entries of %d bytes\n",
2329 param->sglen, param->length);
2330 /* FIRMWARE: iso sink */
2331 retval = test_queue(dev, param,
2332 dev->out_iso_pipe, dev->iso_out, 0);
2335 /* iso read tests */
2337 if (dev->in_iso_pipe == 0 || param->sglen == 0)
2339 dev_info(&intf->dev,
2340 "TEST 16: read %d iso, %d entries of %d bytes\n",
2342 param->sglen, param->length);
2343 /* FIRMWARE: iso source */
2344 retval = test_queue(dev, param,
2345 dev->in_iso_pipe, dev->iso_in, 0);
2348 /* FIXME scatterlist cancel (needs helper thread) */
2350 /* Tests for bulk I/O using DMA mapping by core and odd address */
2352 if (dev->out_pipe == 0)
2354 dev_info(&intf->dev,
2355 "TEST 17: write odd addr %d bytes %u times core map\n",
2356 param->length, param->iterations);
2358 retval = test_unaligned_bulk(
2360 param->length, param->iterations,
2365 if (dev->in_pipe == 0)
2367 dev_info(&intf->dev,
2368 "TEST 18: read odd addr %d bytes %u times core map\n",
2369 param->length, param->iterations);
2371 retval = test_unaligned_bulk(
2373 param->length, param->iterations,
2377 /* Tests for bulk I/O using premapped coherent buffer and odd address */
2379 if (dev->out_pipe == 0)
2381 dev_info(&intf->dev,
2382 "TEST 19: write odd addr %d bytes %u times premapped\n",
2383 param->length, param->iterations);
2385 retval = test_unaligned_bulk(
2387 param->length, param->iterations,
2388 URB_NO_TRANSFER_DMA_MAP, "test19");
2392 if (dev->in_pipe == 0)
2394 dev_info(&intf->dev,
2395 "TEST 20: read odd addr %d bytes %u times premapped\n",
2396 param->length, param->iterations);
2398 retval = test_unaligned_bulk(
2400 param->length, param->iterations,
2401 URB_NO_TRANSFER_DMA_MAP, "test20");
2404 /* control write tests with unaligned buffer */
2406 if (!dev->info->ctrl_out)
2408 dev_info(&intf->dev,
2409 "TEST 21: %d ep0out odd addr, %d..%d vary %d\n",
2411 realworld ? 1 : 0, param->length,
2413 retval = ctrl_out(dev, param->iterations,
2414 param->length, param->vary, 1);
2417 /* unaligned iso tests */
2419 if (dev->out_iso_pipe == 0 || param->sglen == 0)
2421 dev_info(&intf->dev,
2422 "TEST 22: write %d iso odd, %d entries of %d bytes\n",
2424 param->sglen, param->length);
2425 retval = test_queue(dev, param,
2426 dev->out_iso_pipe, dev->iso_out, 1);
2430 if (dev->in_iso_pipe == 0 || param->sglen == 0)
2432 dev_info(&intf->dev,
2433 "TEST 23: read %d iso odd, %d entries of %d bytes\n",
2435 param->sglen, param->length);
2436 retval = test_queue(dev, param,
2437 dev->in_iso_pipe, dev->iso_in, 1);
2440 /* unlink URBs from a bulk-OUT queue */
2442 if (dev->out_pipe == 0 || !param->length || param->sglen < 4)
2445 dev_info(&intf->dev, "TEST 24: unlink from %d queues of "
2446 "%d %d-byte writes\n",
2447 param->iterations, param->sglen, param->length);
2448 for (i = param->iterations; retval == 0 && i > 0; --i) {
2449 retval = unlink_queued(dev, dev->out_pipe,
2450 param->sglen, param->length);
2453 "unlink queued writes failed %d, "
2454 "iterations left %d\n", retval, i);
2460 /* Simple non-queued interrupt I/O tests */
2462 if (dev->out_int_pipe == 0)
2464 dev_info(&intf->dev,
2465 "TEST 25: write %d bytes %u times\n",
2466 param->length, param->iterations);
2467 urb = simple_alloc_urb(udev, dev->out_int_pipe, param->length,
2468 dev->int_out->bInterval);
2473 /* FIRMWARE: interrupt sink (maybe accepts short writes) */
2474 retval = simple_io(dev, urb, param->iterations, 0, 0, "test25");
2475 simple_free_urb(urb);
2478 if (dev->in_int_pipe == 0)
2480 dev_info(&intf->dev,
2481 "TEST 26: read %d bytes %u times\n",
2482 param->length, param->iterations);
2483 urb = simple_alloc_urb(udev, dev->in_int_pipe, param->length,
2484 dev->int_in->bInterval);
2489 /* FIRMWARE: interrupt source (maybe generates short writes) */
2490 retval = simple_io(dev, urb, param->iterations, 0, 0, "test26");
2491 simple_free_urb(urb);
2494 /* We do performance test, so ignore data compare */
2495 if (dev->out_pipe == 0 || param->sglen == 0 || pattern != 0)
2497 dev_info(&intf->dev,
2498 "TEST 27: bulk write %dMbytes\n", (param->iterations *
2499 param->sglen * param->length) / (1024 * 1024));
2500 retval = test_queue(dev, param,
2501 dev->out_pipe, NULL, 0);
2504 if (dev->in_pipe == 0 || param->sglen == 0 || pattern != 0)
2506 dev_info(&intf->dev,
2507 "TEST 28: bulk read %dMbytes\n", (param->iterations *
2508 param->sglen * param->length) / (1024 * 1024));
2509 retval = test_queue(dev, param,
2510 dev->in_pipe, NULL, 0);
2516 /*-------------------------------------------------------------------------*/
2518 /* We only have this one interface to user space, through usbfs.
2519 * User mode code can scan usbfs to find N different devices (maybe on
2520 * different busses) to use when testing, and allocate one thread per
2521 * test. So discovery is simplified, and we have no device naming issues.
2523 * Don't use these only as stress/load tests. Use them along with with
2524 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
2525 * video capture, and so on. Run different tests at different times, in
2526 * different sequences. Nothing here should interact with other devices,
2527 * except indirectly by consuming USB bandwidth and CPU resources for test
2528 * threads and request completion. But the only way to know that for sure
2529 * is to test when HC queues are in use by many devices.
2531 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
2532 * it locks out usbcore in certain code paths. Notably, if you disconnect
2533 * the device-under-test, hub_wq will wait block forever waiting for the
2534 * ioctl to complete ... so that usb_disconnect() can abort the pending
2535 * urbs and then call usbtest_disconnect(). To abort a test, you're best
2536 * off just killing the userspace task and waiting for it to exit.
2540 usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
2543 struct usbtest_dev *dev = usb_get_intfdata(intf);
2544 struct usbtest_param_64 *param_64 = buf;
2545 struct usbtest_param_32 temp;
2546 struct usbtest_param_32 *param_32 = buf;
2547 struct timespec64 start;
2548 struct timespec64 end;
2549 struct timespec64 duration;
2550 int retval = -EOPNOTSUPP;
2552 /* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */
2554 pattern = mod_pattern;
2556 if (mutex_lock_interruptible(&dev->lock))
2557 return -ERESTARTSYS;
2559 /* FIXME: What if a system sleep starts while a test is running? */
2561 /* some devices, like ez-usb default devices, need a non-default
2562 * altsetting to have any active endpoints. some tests change
2563 * altsettings; force a default so most tests don't need to check.
2565 if (dev->info->alt >= 0) {
2566 if (intf->altsetting->desc.bInterfaceNumber) {
2570 retval = set_altsetting(dev, dev->info->alt);
2573 "set altsetting to %d failed, %d\n",
2574 dev->info->alt, retval);
2580 case USBTEST_REQUEST_64:
2581 temp.test_num = param_64->test_num;
2582 temp.iterations = param_64->iterations;
2583 temp.length = param_64->length;
2584 temp.sglen = param_64->sglen;
2585 temp.vary = param_64->vary;
2589 case USBTEST_REQUEST_32:
2593 retval = -EOPNOTSUPP;
2597 ktime_get_ts64(&start);
2599 retval = usbtest_do_ioctl(intf, param_32);
2603 ktime_get_ts64(&end);
2605 duration = timespec64_sub(end, start);
2607 temp.duration_sec = duration.tv_sec;
2608 temp.duration_usec = duration.tv_nsec/NSEC_PER_USEC;
2611 case USBTEST_REQUEST_32:
2612 param_32->duration_sec = temp.duration_sec;
2613 param_32->duration_usec = temp.duration_usec;
2616 case USBTEST_REQUEST_64:
2617 param_64->duration_sec = temp.duration_sec;
2618 param_64->duration_usec = temp.duration_usec;
2623 mutex_unlock(&dev->lock);
2627 /*-------------------------------------------------------------------------*/
2629 static unsigned force_interrupt;
2630 module_param(force_interrupt, uint, 0);
2631 MODULE_PARM_DESC(force_interrupt, "0 = test default; else interrupt");
2634 static unsigned short vendor;
2635 module_param(vendor, ushort, 0);
2636 MODULE_PARM_DESC(vendor, "vendor code (from usb-if)");
2638 static unsigned short product;
2639 module_param(product, ushort, 0);
2640 MODULE_PARM_DESC(product, "product code (from vendor)");
2644 usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id)
2646 struct usb_device *udev;
2647 struct usbtest_dev *dev;
2648 struct usbtest_info *info;
2649 char *rtest, *wtest;
2650 char *irtest, *iwtest;
2651 char *intrtest, *intwtest;
2653 udev = interface_to_usbdev(intf);
2656 /* specify devices by module parameters? */
2657 if (id->match_flags == 0) {
2658 /* vendor match required, product match optional */
2659 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
2661 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
2663 dev_info(&intf->dev, "matched module params, "
2664 "vend=0x%04x prod=0x%04x\n",
2665 le16_to_cpu(udev->descriptor.idVendor),
2666 le16_to_cpu(udev->descriptor.idProduct));
2670 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
2673 info = (struct usbtest_info *) id->driver_info;
2675 mutex_init(&dev->lock);
2679 /* cacheline-aligned scratch for i/o */
2680 dev->buf = kmalloc(TBUF_SIZE, GFP_KERNEL);
2681 if (dev->buf == NULL) {
2686 /* NOTE this doesn't yet test the handful of difference that are
2687 * visible with high speed interrupts: bigger maxpacket (1K) and
2688 * "high bandwidth" modes (up to 3 packets/uframe).
2691 irtest = iwtest = "";
2692 intrtest = intwtest = "";
2693 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
2695 dev->in_pipe = usb_rcvintpipe(udev, info->ep_in);
2699 dev->out_pipe = usb_sndintpipe(udev, info->ep_out);
2700 wtest = " intr-out";
2703 if (override_alt >= 0 || info->autoconf) {
2706 status = get_endpoints(dev, intf);
2708 WARNING(dev, "couldn't get endpoints, %d\n",
2714 /* may find bulk or ISO pipes */
2717 dev->in_pipe = usb_rcvbulkpipe(udev,
2720 dev->out_pipe = usb_sndbulkpipe(udev,
2726 wtest = " bulk-out";
2727 if (dev->in_iso_pipe)
2729 if (dev->out_iso_pipe)
2730 iwtest = " iso-out";
2731 if (dev->in_int_pipe)
2732 intrtest = " int-in";
2733 if (dev->out_int_pipe)
2734 intwtest = " int-out";
2737 usb_set_intfdata(intf, dev);
2738 dev_info(&intf->dev, "%s\n", info->name);
2739 dev_info(&intf->dev, "%s {control%s%s%s%s%s%s%s} tests%s\n",
2740 usb_speed_string(udev->speed),
2741 info->ctrl_out ? " in/out" : "",
2745 info->alt >= 0 ? " (+alt)" : "");
2749 static int usbtest_suspend(struct usb_interface *intf, pm_message_t message)
2754 static int usbtest_resume(struct usb_interface *intf)
2760 static void usbtest_disconnect(struct usb_interface *intf)
2762 struct usbtest_dev *dev = usb_get_intfdata(intf);
2764 usb_set_intfdata(intf, NULL);
2765 dev_dbg(&intf->dev, "disconnect\n");
2769 /* Basic testing only needs a device that can source or sink bulk traffic.
2770 * Any device can test control transfers (default with GENERIC binding).
2772 * Several entries work with the default EP0 implementation that's built
2773 * into EZ-USB chips. There's a default vendor ID which can be overridden
2774 * by (very) small config EEPROMS, but otherwise all these devices act
2775 * identically until firmware is loaded: only EP0 works. It turns out
2776 * to be easy to make other endpoints work, without modifying that EP0
2777 * behavior. For now, we expect that kind of firmware.
2780 /* an21xx or fx versions of ez-usb */
2781 static struct usbtest_info ez1_info = {
2782 .name = "EZ-USB device",
2788 /* fx2 version of ez-usb */
2789 static struct usbtest_info ez2_info = {
2790 .name = "FX2 device",
2796 /* ezusb family device with dedicated usb test firmware,
2798 static struct usbtest_info fw_info = {
2799 .name = "usb test device",
2803 .autoconf = 1, /* iso and ctrl_out need autoconf */
2805 .iso = 1, /* iso_ep's are #8 in/out */
2808 /* peripheral running Linux and 'zero.c' test firmware, or
2809 * its user-mode cousin. different versions of this use
2810 * different hardware with the same vendor/product codes.
2811 * host side MUST rely on the endpoint descriptors.
2813 static struct usbtest_info gz_info = {
2814 .name = "Linux gadget zero",
2822 static struct usbtest_info um_info = {
2823 .name = "Linux user mode test driver",
2828 static struct usbtest_info um2_info = {
2829 .name = "Linux user mode ISO test driver",
2836 /* this is a nice source of high speed bulk data;
2837 * uses an FX2, with firmware provided in the device
2839 static struct usbtest_info ibot2_info = {
2840 .name = "iBOT2 webcam",
2847 /* we can use any device to test control traffic */
2848 static struct usbtest_info generic_info = {
2849 .name = "Generic USB device",
2855 static const struct usb_device_id id_table[] = {
2857 /*-------------------------------------------------------------*/
2859 /* EZ-USB devices which download firmware to replace (or in our
2860 * case augment) the default device implementation.
2863 /* generic EZ-USB FX controller */
2864 { USB_DEVICE(0x0547, 0x2235),
2865 .driver_info = (unsigned long) &ez1_info,
2868 /* CY3671 development board with EZ-USB FX */
2869 { USB_DEVICE(0x0547, 0x0080),
2870 .driver_info = (unsigned long) &ez1_info,
2873 /* generic EZ-USB FX2 controller (or development board) */
2874 { USB_DEVICE(0x04b4, 0x8613),
2875 .driver_info = (unsigned long) &ez2_info,
2878 /* re-enumerated usb test device firmware */
2879 { USB_DEVICE(0xfff0, 0xfff0),
2880 .driver_info = (unsigned long) &fw_info,
2883 /* "Gadget Zero" firmware runs under Linux */
2884 { USB_DEVICE(0x0525, 0xa4a0),
2885 .driver_info = (unsigned long) &gz_info,
2888 /* so does a user-mode variant */
2889 { USB_DEVICE(0x0525, 0xa4a4),
2890 .driver_info = (unsigned long) &um_info,
2893 /* ... and a user-mode variant that talks iso */
2894 { USB_DEVICE(0x0525, 0xa4a3),
2895 .driver_info = (unsigned long) &um2_info,
2899 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2900 /* this does not coexist with the real Keyspan 19qi driver! */
2901 { USB_DEVICE(0x06cd, 0x010b),
2902 .driver_info = (unsigned long) &ez1_info,
2906 /*-------------------------------------------------------------*/
2909 /* iBOT2 makes a nice source of high speed bulk-in data */
2910 /* this does not coexist with a real iBOT2 driver! */
2911 { USB_DEVICE(0x0b62, 0x0059),
2912 .driver_info = (unsigned long) &ibot2_info,
2916 /*-------------------------------------------------------------*/
2919 /* module params can specify devices to use for control tests */
2920 { .driver_info = (unsigned long) &generic_info, },
2923 /*-------------------------------------------------------------*/
2927 MODULE_DEVICE_TABLE(usb, id_table);
2929 static struct usb_driver usbtest_driver = {
2931 .id_table = id_table,
2932 .probe = usbtest_probe,
2933 .unlocked_ioctl = usbtest_ioctl,
2934 .disconnect = usbtest_disconnect,
2935 .suspend = usbtest_suspend,
2936 .resume = usbtest_resume,
2939 /*-------------------------------------------------------------------------*/
2941 static int __init usbtest_init(void)
2945 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product);
2947 return usb_register(&usbtest_driver);
2949 module_init(usbtest_init);
2951 static void __exit usbtest_exit(void)
2953 usb_deregister(&usbtest_driver);
2955 module_exit(usbtest_exit);
2957 MODULE_DESCRIPTION("USB Core/HCD Testing Driver");
2958 MODULE_LICENSE("GPL");