1 #include <linux/config.h>
2 #if !defined (DEBUG) && defined (CONFIG_USB_DEBUG)
5 #include <linux/kernel.h>
6 #include <linux/errno.h>
7 #include <linux/init.h>
8 #include <linux/slab.h>
10 #include <linux/module.h>
11 #include <linux/moduleparam.h>
12 #include <asm/scatterlist.h>
14 #include <linux/usb.h>
17 /*-------------------------------------------------------------------------*/
19 // FIXME make these public somewhere; usbdevfs.h?
21 struct usbtest_param {
23 unsigned test_num; /* 0..(TEST_CASES-1) */
30 struct timeval duration;
32 #define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param)
34 /*-------------------------------------------------------------------------*/
36 #define GENERIC /* let probe() bind using module params */
38 /* Some devices that can be used for testing will have "real" drivers.
39 * Entries for those need to be enabled here by hand, after disabling
42 //#define IBOT2 /* grab iBOT2 webcams */
43 //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */
45 /*-------------------------------------------------------------------------*/
49 u8 ep_in; /* bulk/intr source */
50 u8 ep_out; /* bulk/intr sink */
51 unsigned autoconf : 1;
52 unsigned ctrl_out : 1;
53 unsigned iso : 1; /* try iso in/out */
57 /* this is accessed only through usbfs ioctl calls.
58 * one ioctl to issue a test ... one lock per device.
59 * tests create other threads if they need them.
60 * urbs and buffers are allocated dynamically,
61 * and data generated deterministically.
64 struct usb_interface *intf;
65 struct usbtest_info *info;
70 struct usb_endpoint_descriptor *iso_in, *iso_out;
77 static struct usb_device *testdev_to_usbdev (struct usbtest_dev *test)
79 return interface_to_usbdev (test->intf);
82 /* set up all urbs so they can be used with either bulk or interrupt */
83 #define INTERRUPT_RATE 1 /* msec/transfer */
85 #define xprintk(tdev,level,fmt,args...) \
86 dev_printk(level , &(tdev)->intf->dev , fmt , ## args)
89 #define DBG(dev,fmt,args...) \
90 xprintk(dev , KERN_DEBUG , fmt , ## args)
92 #define DBG(dev,fmt,args...) \
99 #define VDBG(dev,fmt,args...) \
103 #define ERROR(dev,fmt,args...) \
104 xprintk(dev , KERN_ERR , fmt , ## args)
105 #define WARN(dev,fmt,args...) \
106 xprintk(dev , KERN_WARNING , fmt , ## args)
107 #define INFO(dev,fmt,args...) \
108 xprintk(dev , KERN_INFO , fmt , ## args)
110 /*-------------------------------------------------------------------------*/
113 get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf)
116 struct usb_host_interface *alt;
117 struct usb_host_endpoint *in, *out;
118 struct usb_host_endpoint *iso_in, *iso_out;
119 struct usb_device *udev;
121 for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
125 iso_in = iso_out = NULL;
126 alt = intf->altsetting + tmp;
128 /* take the first altsetting with in-bulk + out-bulk;
129 * ignore other endpoints and altsetttings.
131 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
132 struct usb_host_endpoint *e;
134 e = alt->endpoint + ep;
135 switch (e->desc.bmAttributes) {
136 case USB_ENDPOINT_XFER_BULK:
138 case USB_ENDPOINT_XFER_ISOC:
145 if (e->desc.bEndpointAddress & USB_DIR_IN) {
154 if (e->desc.bEndpointAddress & USB_DIR_IN) {
162 if ((in && out) || (iso_in && iso_out))
168 udev = testdev_to_usbdev (dev);
169 if (alt->desc.bAlternateSetting != 0) {
170 tmp = usb_set_interface (udev,
171 alt->desc.bInterfaceNumber,
172 alt->desc.bAlternateSetting);
178 dev->in_pipe = usb_rcvbulkpipe (udev,
179 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
180 dev->out_pipe = usb_sndbulkpipe (udev,
181 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
184 dev->iso_in = &iso_in->desc;
185 dev->in_iso_pipe = usb_rcvisocpipe (udev,
186 iso_in->desc.bEndpointAddress
187 & USB_ENDPOINT_NUMBER_MASK);
188 dev->iso_out = &iso_out->desc;
189 dev->out_iso_pipe = usb_sndisocpipe (udev,
190 iso_out->desc.bEndpointAddress
191 & USB_ENDPOINT_NUMBER_MASK);
196 /*-------------------------------------------------------------------------*/
198 /* Support for testing basic non-queued I/O streams.
200 * These just package urbs as requests that can be easily canceled.
201 * Each urb's data buffer is dynamically allocated; callers can fill
202 * them with non-zero test data (or test for it) when appropriate.
205 static void simple_callback (struct urb *urb, struct pt_regs *regs)
207 complete ((struct completion *) urb->context);
210 static struct urb *simple_alloc_urb (
211 struct usb_device *udev,
220 urb = usb_alloc_urb (0, SLAB_KERNEL);
223 usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL);
224 urb->interval = (udev->speed == USB_SPEED_HIGH)
225 ? (INTERRUPT_RATE << 3)
227 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
228 if (usb_pipein (pipe))
229 urb->transfer_flags |= URB_SHORT_NOT_OK;
230 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, SLAB_KERNEL,
232 if (!urb->transfer_buffer) {
236 memset (urb->transfer_buffer, 0, bytes);
240 static unsigned pattern = 0;
241 module_param (pattern, uint, S_IRUGO);
242 // MODULE_PARM_DESC (pattern, "i/o pattern (0 == zeroes)");
244 static inline void simple_fill_buf (struct urb *urb)
247 u8 *buf = urb->transfer_buffer;
248 unsigned len = urb->transfer_buffer_length;
254 memset (buf, 0, len);
257 for (i = 0; i < len; i++)
258 *buf++ = (u8) (i % 63);
263 static inline int simple_check_buf (struct urb *urb)
267 u8 *buf = urb->transfer_buffer;
268 unsigned len = urb->actual_length;
270 for (i = 0; i < len; i++, buf++) {
272 /* all-zeroes has no synchronization issues */
276 /* mod63 stays in sync with short-terminated transfers,
277 * or otherwise when host and gadget agree on how large
278 * each usb transfer request should be. resync is done
279 * with set_interface or set_config.
284 /* always fail unsupported patterns */
289 if (*buf == expected)
291 dbg ("buf[%d] = %d (not %d)", i, *buf, expected);
297 static void simple_free_urb (struct urb *urb)
299 usb_buffer_free (urb->dev, urb->transfer_buffer_length,
300 urb->transfer_buffer, urb->transfer_dma);
304 static int simple_io (
312 struct usb_device *udev = urb->dev;
313 int max = urb->transfer_buffer_length;
314 struct completion completion;
317 urb->context = &completion;
318 while (retval == 0 && iterations-- > 0) {
319 init_completion (&completion);
320 if (usb_pipeout (urb->pipe))
321 simple_fill_buf (urb);
322 if ((retval = usb_submit_urb (urb, SLAB_KERNEL)) != 0)
325 /* NOTE: no timeouts; can't be broken out of by interrupt */
326 wait_for_completion (&completion);
327 retval = urb->status;
329 if (retval == 0 && usb_pipein (urb->pipe))
330 retval = simple_check_buf (urb);
333 int len = urb->transfer_buffer_length;
338 len = (vary < max) ? vary : max;
339 urb->transfer_buffer_length = len;
342 /* FIXME if endpoint halted, clear halt (and log) */
344 urb->transfer_buffer_length = max;
346 if (expected != retval)
348 "%s failed, iterations left %d, status %d (not %d)\n",
349 label, iterations, retval, expected);
354 /*-------------------------------------------------------------------------*/
356 /* We use scatterlist primitives to test queued I/O.
357 * Yes, this also tests the scatterlist primitives.
360 static void free_sglist (struct scatterlist *sg, int nents)
366 for (i = 0; i < nents; i++) {
369 kfree (page_address (sg [i].page) + sg [i].offset);
374 static struct scatterlist *
375 alloc_sglist (int nents, int max, int vary)
377 struct scatterlist *sg;
381 sg = kmalloc (nents * sizeof *sg, SLAB_KERNEL);
384 memset (sg, 0, nents * sizeof *sg);
386 for (i = 0; i < nents; i++) {
389 buf = kmalloc (size, SLAB_KERNEL);
394 memset (buf, 0, size);
396 /* kmalloc pages are always physically contiguous! */
397 sg [i].page = virt_to_page (buf);
398 sg [i].offset = offset_in_page (buf);
399 sg [i].length = size;
405 size = (vary < max) ? vary : max;
412 static int perform_sglist (
413 struct usb_device *udev,
416 struct usb_sg_request *req,
417 struct scatterlist *sg,
423 while (retval == 0 && iterations-- > 0) {
424 retval = usb_sg_init (req, udev, pipe,
425 (udev->speed == USB_SPEED_HIGH)
426 ? (INTERRUPT_RATE << 3)
428 sg, nents, 0, SLAB_KERNEL);
433 retval = req->status;
435 /* FIXME if endpoint halted, clear halt (and log) */
438 // FIXME for unlink or fault handling tests, don't report
439 // failure if retval is as we expected ...
442 dbg ("perform_sglist failed, iterations left %d, status %d",
448 /*-------------------------------------------------------------------------*/
450 /* unqueued control message testing
452 * there's a nice set of device functional requirements in chapter 9 of the
453 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
454 * special test firmware.
456 * we know the device is configured (or suspended) by the time it's visible
457 * through usbfs. we can't change that, so we won't test enumeration (which
458 * worked 'well enough' to get here, this time), power management (ditto),
459 * or remote wakeup (which needs human interaction).
462 static unsigned realworld = 1;
463 module_param (realworld, uint, 0);
464 MODULE_PARM_DESC (realworld, "clear to demand stricter ch9 compliance");
466 static int get_altsetting (struct usbtest_dev *dev)
468 struct usb_interface *iface = dev->intf;
469 struct usb_device *udev = interface_to_usbdev (iface);
472 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
473 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
474 0, iface->altsetting [0].desc.bInterfaceNumber,
475 dev->buf, 1, HZ * USB_CTRL_GET_TIMEOUT);
487 static int set_altsetting (struct usbtest_dev *dev, int alternate)
489 struct usb_interface *iface = dev->intf;
490 struct usb_device *udev;
492 if (alternate < 0 || alternate >= 256)
495 udev = interface_to_usbdev (iface);
496 return usb_set_interface (udev,
497 iface->altsetting [0].desc.bInterfaceNumber,
501 static int is_good_config (char *buf, int len)
503 struct usb_config_descriptor *config;
505 if (len < sizeof *config)
507 config = (struct usb_config_descriptor *) buf;
509 switch (config->bDescriptorType) {
511 case USB_DT_OTHER_SPEED_CONFIG:
512 if (config->bLength != 9) {
513 dbg ("bogus config descriptor length");
516 /* this bit 'must be 1' but often isn't */
517 if (!realworld && !(config->bmAttributes & 0x80)) {
518 dbg ("high bit of config attributes not set");
521 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
522 dbg ("reserved config bits set");
530 le16_to_cpus (&config->wTotalLength);
531 if (config->wTotalLength == len) /* read it all */
533 if (config->wTotalLength >= TBUF_SIZE) /* max partial read */
535 dbg ("bogus config descriptor read size");
539 /* sanity test for standard requests working with usb_control_mesg() and some
540 * of the utility functions which use it.
542 * this doesn't test how endpoint halts behave or data toggles get set, since
543 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
544 * halt or toggle). toggle testing is impractical without support from hcds.
546 * this avoids failing devices linux would normally work with, by not testing
547 * config/altsetting operations for devices that only support their defaults.
548 * such devices rarely support those needless operations.
550 * NOTE that since this is a sanity test, it's not examining boundary cases
551 * to see if usbcore, hcd, and device all behave right. such testing would
552 * involve varied read sizes and other operation sequences.
554 static int ch9_postconfig (struct usbtest_dev *dev)
556 struct usb_interface *iface = dev->intf;
557 struct usb_device *udev = interface_to_usbdev (iface);
560 /* [9.2.3] if there's more than one altsetting, we need to be able to
561 * set and get each one. mostly trusts the descriptors from usbcore.
563 for (i = 0; i < iface->num_altsetting; i++) {
565 /* 9.2.3 constrains the range here */
566 alt = iface->altsetting [i].desc.bAlternateSetting;
567 if (alt < 0 || alt >= iface->num_altsetting) {
568 dev_dbg (&iface->dev,
569 "invalid alt [%d].bAltSetting = %d\n",
573 /* [real world] get/set unimplemented if there's only one */
574 if (realworld && iface->num_altsetting == 1)
577 /* [9.4.10] set_interface */
578 retval = set_altsetting (dev, alt);
580 dev_dbg (&iface->dev, "can't set_interface = %d, %d\n",
585 /* [9.4.4] get_interface always works */
586 retval = get_altsetting (dev);
588 dev_dbg (&iface->dev, "get alt should be %d, was %d\n",
590 return (retval < 0) ? retval : -EDOM;
595 /* [real world] get_config unimplemented if there's only one */
596 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
597 int expected = udev->actconfig->desc.bConfigurationValue;
599 /* [9.4.2] get_configuration always works
600 * ... although some cheap devices (like one TI Hub I've got)
601 * won't return config descriptors except before set_config.
603 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
604 USB_REQ_GET_CONFIGURATION,
605 USB_DIR_IN | USB_RECIP_DEVICE,
606 0, 0, dev->buf, 1, HZ * USB_CTRL_GET_TIMEOUT);
607 if (retval != 1 || dev->buf [0] != expected) {
608 dev_dbg (&iface->dev,
609 "get config --> %d (%d)\n", retval,
611 return (retval < 0) ? retval : -EDOM;
615 /* there's always [9.4.3] a device descriptor [9.6.1] */
616 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0,
617 dev->buf, sizeof udev->descriptor);
618 if (retval != sizeof udev->descriptor) {
619 dev_dbg (&iface->dev, "dev descriptor --> %d\n", retval);
620 return (retval < 0) ? retval : -EDOM;
623 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
624 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
625 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i,
626 dev->buf, TBUF_SIZE);
627 if (!is_good_config (dev->buf, retval)) {
628 dev_dbg (&iface->dev,
629 "config [%d] descriptor --> %d\n",
631 return (retval < 0) ? retval : -EDOM;
634 // FIXME cross-checking udev->config[i] to make sure usbcore
635 // parsed it right (etc) would be good testing paranoia
638 /* and sometimes [9.2.6.6] speed dependent descriptors */
639 if (udev->descriptor.bcdUSB == 0x0200) { /* pre-swapped */
640 struct usb_qualifier_descriptor *d = NULL;
642 /* device qualifier [9.6.2] */
643 retval = usb_get_descriptor (udev,
644 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
645 sizeof (struct usb_qualifier_descriptor));
646 if (retval == -EPIPE) {
647 if (udev->speed == USB_SPEED_HIGH) {
648 dev_dbg (&iface->dev,
649 "hs dev qualifier --> %d\n",
651 return (retval < 0) ? retval : -EDOM;
653 /* usb2.0 but not high-speed capable; fine */
654 } else if (retval != sizeof (struct usb_qualifier_descriptor)) {
655 dev_dbg (&iface->dev, "dev qualifier --> %d\n", retval);
656 return (retval < 0) ? retval : -EDOM;
658 d = (struct usb_qualifier_descriptor *) dev->buf;
660 /* might not have [9.6.2] any other-speed configs [9.6.4] */
662 unsigned max = d->bNumConfigurations;
663 for (i = 0; i < max; i++) {
664 retval = usb_get_descriptor (udev,
665 USB_DT_OTHER_SPEED_CONFIG, i,
666 dev->buf, TBUF_SIZE);
667 if (!is_good_config (dev->buf, retval)) {
668 dev_dbg (&iface->dev,
669 "other speed config --> %d\n",
671 return (retval < 0) ? retval : -EDOM;
676 // FIXME fetch strings from at least the device descriptor
678 /* [9.4.5] get_status always works */
679 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf);
681 dev_dbg (&iface->dev, "get dev status --> %d\n", retval);
682 return (retval < 0) ? retval : -EDOM;
685 // FIXME configuration.bmAttributes says if we could try to set/clear
686 // the device's remote wakeup feature ... if we can, test that here
688 retval = usb_get_status (udev, USB_RECIP_INTERFACE,
689 iface->altsetting [0].desc.bInterfaceNumber, dev->buf);
691 dev_dbg (&iface->dev, "get interface status --> %d\n", retval);
692 return (retval < 0) ? retval : -EDOM;
694 // FIXME get status for each endpoint in the interface
699 /*-------------------------------------------------------------------------*/
701 /* use ch9 requests to test whether:
702 * (a) queues work for control, keeping N subtests queued and
703 * active (auto-resubmit) for M loops through the queue.
704 * (b) protocol stalls (control-only) will autorecover.
705 * it's not like bulk/intr; no halt clearing.
706 * (c) short control reads are reported and handled.
707 * (d) queues are always processed in-order
712 struct usbtest_dev *dev;
713 struct completion complete;
718 struct usbtest_param *param;
722 #define NUM_SUBCASES 15 /* how many test subcases here? */
725 struct usb_ctrlrequest setup;
730 static void ctrl_complete (struct urb *urb, struct pt_regs *regs)
732 struct ctrl_ctx *ctx = urb->context;
733 struct usb_ctrlrequest *reqp;
734 struct subcase *subcase;
735 int status = urb->status;
737 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
738 subcase = container_of (reqp, struct subcase, setup);
740 spin_lock (&ctx->lock);
744 /* queue must transfer and complete in fifo order, unless
745 * usb_unlink_urb() is used to unlink something not at the
746 * physical queue head (not tested).
748 if (subcase->number > 0) {
749 if ((subcase->number - ctx->last) != 1) {
750 dbg ("subcase %d completed out of order, last %d",
751 subcase->number, ctx->last);
753 ctx->last = subcase->number;
757 ctx->last = subcase->number;
759 /* succeed or fault in only one way? */
760 if (status == subcase->expected)
763 /* async unlink for cleanup? */
764 else if (status != -ECONNRESET) {
766 /* some faults are allowed, not required */
767 if (subcase->expected > 0 && (
768 ((urb->status == -subcase->expected /* happened */
769 || urb->status == 0)))) /* didn't */
771 /* sometimes more than one fault is allowed */
772 else if (subcase->number == 12 && status == -EPIPE)
775 dbg ("subtest %d error, status %d",
776 subcase->number, status);
779 /* unexpected status codes mean errors; ideally, in hardware */
782 if (ctx->status == 0) {
785 ctx->status = status;
786 info ("control queue %02x.%02x, err %d, %d left",
787 reqp->bRequestType, reqp->bRequest,
790 /* FIXME this "unlink everything" exit route should
791 * be a separate test case.
794 /* unlink whatever's still pending */
795 for (i = 1; i < ctx->param->sglen; i++) {
796 struct urb *u = ctx->urb [
797 (i + subcase->number) % ctx->param->sglen];
799 if (u == urb || !u->dev)
801 status = usb_unlink_urb (u);
808 dbg ("urb unlink --> %d", status);
811 status = ctx->status;
815 /* resubmit if we need to, else mark this as done */
816 if ((status == 0) && (ctx->pending < ctx->count)) {
817 if ((status = usb_submit_urb (urb, SLAB_ATOMIC)) != 0) {
818 dbg ("can't resubmit ctrl %02x.%02x, err %d",
819 reqp->bRequestType, reqp->bRequest, status);
826 /* signal completion when nothing's queued */
827 if (ctx->pending == 0)
828 complete (&ctx->complete);
829 spin_unlock (&ctx->lock);
833 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
835 struct usb_device *udev = testdev_to_usbdev (dev);
837 struct ctrl_ctx context;
840 spin_lock_init (&context.lock);
842 init_completion (&context.complete);
843 context.count = param->sglen * param->iterations;
845 context.status = -ENOMEM;
846 context.param = param;
849 /* allocate and init the urbs we'll queue.
850 * as with bulk/intr sglists, sglen is the queue depth; it also
851 * controls which subtests run (more tests than sglen) or rerun.
853 urb = kmalloc (param->sglen * sizeof (struct urb *), SLAB_KERNEL);
856 memset (urb, 0, param->sglen * sizeof (struct urb *));
857 for (i = 0; i < param->sglen; i++) {
858 int pipe = usb_rcvctrlpipe (udev, 0);
861 struct usb_ctrlrequest req;
862 struct subcase *reqp;
865 /* requests here are mostly expected to succeed on any
866 * device, but some are chosen to trigger protocol stalls
869 memset (&req, 0, sizeof req);
870 req.bRequest = USB_REQ_GET_DESCRIPTOR;
871 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
873 switch (i % NUM_SUBCASES) {
874 case 0: // get device descriptor
875 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8);
876 len = sizeof (struct usb_device_descriptor);
878 case 1: // get first config descriptor (only)
879 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
880 len = sizeof (struct usb_config_descriptor);
882 case 2: // get altsetting (OFTEN STALLS)
883 req.bRequest = USB_REQ_GET_INTERFACE;
884 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
885 // index = 0 means first interface
889 case 3: // get interface status
890 req.bRequest = USB_REQ_GET_STATUS;
891 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
895 case 4: // get device status
896 req.bRequest = USB_REQ_GET_STATUS;
897 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
900 case 5: // get device qualifier (MAY STALL)
901 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
902 len = sizeof (struct usb_qualifier_descriptor);
903 if (udev->speed != USB_SPEED_HIGH)
906 case 6: // get first config descriptor, plus interface
907 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
908 len = sizeof (struct usb_config_descriptor);
909 len += sizeof (struct usb_interface_descriptor);
911 case 7: // get interface descriptor (ALWAYS STALLS)
912 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
914 len = sizeof (struct usb_interface_descriptor);
917 // NOTE: two consecutive stalls in the queue here.
918 // that tests fault recovery a bit more aggressively.
919 case 8: // clear endpoint halt (USUALLY STALLS)
920 req.bRequest = USB_REQ_CLEAR_FEATURE;
921 req.bRequestType = USB_RECIP_ENDPOINT;
922 // wValue 0 == ep halt
923 // wIndex 0 == ep0 (shouldn't halt!)
925 pipe = usb_sndctrlpipe (udev, 0);
928 case 9: // get endpoint status
929 req.bRequest = USB_REQ_GET_STATUS;
930 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
934 case 10: // trigger short read (EREMOTEIO)
935 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
937 expected = -EREMOTEIO;
939 // NOTE: two consecutive _different_ faults in the queue.
940 case 11: // get endpoint descriptor (ALWAYS STALLS)
941 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8);
943 len = sizeof (struct usb_interface_descriptor);
946 // NOTE: sometimes even a third fault in the queue!
947 case 12: // get string 0 descriptor (MAY STALL)
948 req.wValue = cpu_to_le16 (USB_DT_STRING << 8);
949 // string == 0, for language IDs
950 len = sizeof (struct usb_interface_descriptor);
951 // may succeed when > 4 languages
952 expected = EREMOTEIO; // or EPIPE, if no strings
954 case 13: // short read, resembling case 10
955 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
956 // last data packet "should" be DATA1, not DATA0
957 len = 1024 - udev->epmaxpacketin [0];
958 expected = -EREMOTEIO;
960 case 14: // short read; try to fill the last packet
961 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0);
962 // device descriptor size == 18 bytes
963 len = udev->epmaxpacketin [0];
965 case 8: len = 24; break;
966 case 16: len = 32; break;
968 expected = -EREMOTEIO;
971 err ("bogus number of ctrl queue testcases!");
972 context.status = -EINVAL;
975 req.wLength = cpu_to_le16 (len);
976 urb [i] = u = simple_alloc_urb (udev, pipe, len);
980 reqp = usb_buffer_alloc (udev, sizeof *reqp, SLAB_KERNEL,
985 reqp->number = i % NUM_SUBCASES;
986 reqp->expected = expected;
987 u->setup_packet = (char *) &reqp->setup;
989 u->context = &context;
990 u->complete = ctrl_complete;
991 u->transfer_flags |= URB_ASYNC_UNLINK;
996 spin_lock_irq (&context.lock);
997 for (i = 0; i < param->sglen; i++) {
998 context.status = usb_submit_urb (urb [i], SLAB_ATOMIC);
999 if (context.status != 0) {
1000 dbg ("can't submit urb[%d], status %d",
1002 context.count = context.pending;
1007 spin_unlock_irq (&context.lock);
1009 /* FIXME set timer and time out; provide a disconnect hook */
1011 /* wait for the last one to complete */
1012 if (context.pending > 0)
1013 wait_for_completion (&context.complete);
1016 for (i = 0; i < param->sglen; i++) {
1019 urb [i]->dev = udev;
1020 if (urb [i]->setup_packet)
1021 usb_buffer_free (udev, sizeof (struct usb_ctrlrequest),
1022 urb [i]->setup_packet,
1023 urb [i]->setup_dma);
1024 simple_free_urb (urb [i]);
1027 return context.status;
1032 /*-------------------------------------------------------------------------*/
1034 static void unlink1_callback (struct urb *urb, struct pt_regs *regs)
1036 int status = urb->status;
1038 // we "know" -EPIPE (stall) never happens
1040 status = usb_submit_urb (urb, SLAB_ATOMIC);
1042 urb->status = status;
1043 complete ((struct completion *) urb->context);
1047 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
1050 struct completion completion;
1053 init_completion (&completion);
1054 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size);
1057 urb->transfer_flags |= URB_ASYNC_UNLINK;
1058 urb->context = &completion;
1059 urb->complete = unlink1_callback;
1061 /* keep the endpoint busy. there are lots of hc/hcd-internal
1062 * states, and testing should get to all of them over time.
1064 * FIXME want additional tests for when endpoint is STALLing
1065 * due to errors, or is just NAKing requests.
1067 if ((retval = usb_submit_urb (urb, SLAB_KERNEL)) != 0) {
1068 dev_dbg (&dev->intf->dev, "submit fail %d\n", retval);
1072 /* unlinking that should always work. variable delay tests more
1073 * hcd states and code paths, even with little other system load.
1075 msleep (jiffies % (2 * INTERRUPT_RATE));
1078 retval = usb_unlink_urb (urb);
1079 if (retval == -EBUSY || retval == -EIDRM) {
1080 /* we can't unlink urbs while they're completing.
1081 * or if they've completed, and we haven't resubmitted.
1082 * "normal" drivers would prevent resubmission, but
1083 * since we're testing unlink paths, we can't.
1085 dev_dbg (&dev->intf->dev, "unlink retry\n");
1090 if (!(retval == 0 || retval == -EINPROGRESS)) {
1091 dev_dbg (&dev->intf->dev, "unlink fail %d\n", retval);
1095 wait_for_completion (&completion);
1096 retval = urb->status;
1097 simple_free_urb (urb);
1100 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1102 return (retval == -ENOENT || retval == -EPERM) ?
1106 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len)
1110 /* test sync and async paths */
1111 retval = unlink1 (dev, pipe, len, 1);
1113 retval = unlink1 (dev, pipe, len, 0);
1117 /*-------------------------------------------------------------------------*/
1119 static int verify_not_halted (int ep, struct urb *urb)
1124 /* shouldn't look or act halted */
1125 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1127 dbg ("ep %02x couldn't get no-halt status, %d", ep, retval);
1131 dbg ("ep %02x bogus status: %04x != 0", ep, status);
1134 retval = simple_io (urb, 1, 0, 0, __FUNCTION__);
1140 static int verify_halted (int ep, struct urb *urb)
1145 /* should look and act halted */
1146 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1148 dbg ("ep %02x couldn't get halt status, %d", ep, retval);
1152 dbg ("ep %02x bogus status: %04x != 1", ep, status);
1155 retval = simple_io (urb, 1, 0, -EPIPE, __FUNCTION__);
1156 if (retval != -EPIPE)
1158 retval = simple_io (urb, 1, 0, -EPIPE, "verify_still_halted");
1159 if (retval != -EPIPE)
1164 static int test_halt (int ep, struct urb *urb)
1168 /* shouldn't look or act halted now */
1169 retval = verify_not_halted (ep, urb);
1173 /* set halt (protocol test only), verify it worked */
1174 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0),
1175 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1176 USB_ENDPOINT_HALT, ep,
1177 NULL, 0, HZ * USB_CTRL_SET_TIMEOUT);
1179 dbg ("ep %02x couldn't set halt, %d", ep, retval);
1182 retval = verify_halted (ep, urb);
1186 /* clear halt (tests API + protocol), verify it worked */
1187 retval = usb_clear_halt (urb->dev, urb->pipe);
1189 dbg ("ep %02x couldn't clear halt, %d", ep, retval);
1192 retval = verify_not_halted (ep, urb);
1196 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1201 static int halt_simple (struct usbtest_dev *dev)
1207 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512);
1212 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN;
1213 urb->pipe = dev->in_pipe;
1214 retval = test_halt (ep, urb);
1219 if (dev->out_pipe) {
1220 ep = usb_pipeendpoint (dev->out_pipe);
1221 urb->pipe = dev->out_pipe;
1222 retval = test_halt (ep, urb);
1225 simple_free_urb (urb);
1229 /*-------------------------------------------------------------------------*/
1231 /* Control OUT tests use the vendor control requests from Intel's
1232 * USB 2.0 compliance test device: write a buffer, read it back.
1234 * Intel's spec only _requires_ that it work for one packet, which
1235 * is pretty weak. Some HCDs place limits here; most devices will
1236 * need to be able to handle more than one OUT data packet. We'll
1237 * try whatever we're told to try.
1239 static int ctrl_out (struct usbtest_dev *dev,
1240 unsigned count, unsigned length, unsigned vary)
1242 unsigned i, j, len, retval;
1245 struct usb_device *udev;
1247 if (length > 0xffff || vary >= length)
1250 buf = kmalloc(length, SLAB_KERNEL);
1254 udev = testdev_to_usbdev (dev);
1258 /* NOTE: hardware might well act differently if we pushed it
1259 * with lots back-to-back queued requests.
1261 for (i = 0; i < count; i++) {
1262 /* write patterned data */
1263 for (j = 0; j < len; j++)
1265 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0),
1266 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1267 0, 0, buf, len, HZ * USB_CTRL_SET_TIMEOUT);
1268 if (retval != len) {
1273 /* read it back -- assuming nothing intervened!! */
1274 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0),
1275 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1276 0, 0, buf, len, HZ * USB_CTRL_GET_TIMEOUT);
1277 if (retval != len) {
1282 /* fail if we can't verify */
1283 for (j = 0; j < len; j++) {
1284 if (buf [j] != (u8) (i + j)) {
1285 INFO (dev, "ctrl_out, byte %d is %d not %d\n",
1286 j, buf [j], (u8) i + j);
1302 INFO (dev, "ctrl_out %s failed, code %d, count %d\n",
1309 /*-------------------------------------------------------------------------*/
1311 /* ISO tests ... mimics common usage
1312 * - buffer length is split into N packets (mostly maxpacket sized)
1313 * - multi-buffers according to sglen
1316 struct iso_context {
1320 struct completion done;
1321 unsigned long errors;
1322 struct usbtest_dev *dev;
1325 static void iso_callback (struct urb *urb, struct pt_regs *regs)
1327 struct iso_context *ctx = urb->context;
1329 spin_lock(&ctx->lock);
1332 if (urb->error_count > 0)
1333 ctx->errors += urb->error_count;
1335 if (urb->status == 0 && ctx->count > (ctx->pending - 1)) {
1336 int status = usb_submit_urb (urb, GFP_ATOMIC);
1341 dev_dbg (&ctx->dev->intf->dev,
1342 "iso resubmit err %d\n",
1345 case -ENODEV: /* disconnected */
1349 simple_free_urb (urb);
1352 if (ctx->pending == 0) {
1354 dev_dbg (&ctx->dev->intf->dev,
1355 "iso test, %lu errors\n",
1357 complete (&ctx->done);
1360 spin_unlock(&ctx->lock);
1363 static struct urb *iso_alloc_urb (
1364 struct usb_device *udev,
1366 struct usb_endpoint_descriptor *desc,
1371 unsigned i, maxp, packets;
1373 if (bytes < 0 || !desc)
1375 maxp = 0x7ff & desc->wMaxPacketSize;
1376 maxp *= 1 + (0x3 & (desc->wMaxPacketSize >> 11));
1377 packets = (bytes + maxp - 1) / maxp;
1379 urb = usb_alloc_urb (packets, SLAB_KERNEL);
1385 urb->number_of_packets = packets;
1386 urb->transfer_buffer_length = bytes;
1387 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, SLAB_KERNEL,
1388 &urb->transfer_dma);
1389 if (!urb->transfer_buffer) {
1393 memset (urb->transfer_buffer, 0, bytes);
1394 for (i = 0; i < packets; i++) {
1395 /* here, only the last packet will be short */
1396 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp);
1397 bytes -= urb->iso_frame_desc[i].length;
1399 urb->iso_frame_desc[i].offset = maxp * i;
1402 urb->complete = iso_callback;
1403 // urb->context = SET BY CALLER
1404 urb->interval = 1 << (desc->bInterval - 1);
1405 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1410 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
1411 int pipe, struct usb_endpoint_descriptor *desc)
1413 struct iso_context context;
1414 struct usb_device *udev;
1416 unsigned long packets = 0;
1418 struct urb *urbs[10]; /* FIXME no limit */
1420 if (param->sglen > 10)
1423 context.count = param->iterations * param->sglen;
1424 context.pending = param->sglen;
1427 init_completion (&context.done);
1428 spin_lock_init (&context.lock);
1430 memset (urbs, 0, sizeof urbs);
1431 udev = testdev_to_usbdev (dev);
1432 dev_dbg (&dev->intf->dev,
1433 "... iso period %d %sframes, wMaxPacket %04x\n",
1434 1 << (desc->bInterval - 1),
1435 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1436 desc->wMaxPacketSize);
1438 for (i = 0; i < param->sglen; i++) {
1439 urbs [i] = iso_alloc_urb (udev, pipe, desc,
1445 packets += urbs[i]->number_of_packets;
1446 urbs [i]->context = &context;
1448 packets *= param->iterations;
1449 dev_dbg (&dev->intf->dev,
1450 "... total %lu msec (%lu packets)\n",
1451 (packets * (1 << (desc->bInterval - 1)))
1452 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
1455 spin_lock_irq (&context.lock);
1456 for (i = 0; i < param->sglen; i++) {
1457 status = usb_submit_urb (urbs [i], SLAB_ATOMIC);
1459 ERROR (dev, "submit iso[%d], error %d\n", i, status);
1463 simple_free_urb (urbs [i]);
1467 spin_unlock_irq (&context.lock);
1469 wait_for_completion (&context.done);
1473 for (i = 0; i < param->sglen; i++) {
1475 simple_free_urb (urbs [i]);
1480 /*-------------------------------------------------------------------------*/
1482 /* We only have this one interface to user space, through usbfs.
1483 * User mode code can scan usbfs to find N different devices (maybe on
1484 * different busses) to use when testing, and allocate one thread per
1485 * test. So discovery is simplified, and we have no device naming issues.
1487 * Don't use these only as stress/load tests. Use them along with with
1488 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
1489 * video capture, and so on. Run different tests at different times, in
1490 * different sequences. Nothing here should interact with other devices,
1491 * except indirectly by consuming USB bandwidth and CPU resources for test
1492 * threads and request completion. But the only way to know that for sure
1493 * is to test when HC queues are in use by many devices.
1497 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1499 struct usbtest_dev *dev = usb_get_intfdata (intf);
1500 struct usb_device *udev = testdev_to_usbdev (dev);
1501 struct usbtest_param *param = buf;
1502 int retval = -EOPNOTSUPP;
1504 struct scatterlist *sg;
1505 struct usb_sg_request req;
1506 struct timeval start;
1509 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
1511 if (code != USBTEST_REQUEST)
1514 if (param->iterations <= 0 || param->length < 0
1515 || param->sglen < 0 || param->vary < 0)
1518 if (down_interruptible (&dev->sem))
1519 return -ERESTARTSYS;
1521 /* some devices, like ez-usb default devices, need a non-default
1522 * altsetting to have any active endpoints. some tests change
1523 * altsettings; force a default so most tests don't need to check.
1525 if (dev->info->alt >= 0) {
1528 if (intf->altsetting->desc.bInterfaceNumber) {
1532 res = set_altsetting (dev, dev->info->alt);
1534 dev_err (&intf->dev,
1535 "set altsetting to %d failed, %d\n",
1536 dev->info->alt, res);
1543 * Just a bunch of test cases that every HCD is expected to handle.
1545 * Some may need specific firmware, though it'd be good to have
1546 * one firmware image to handle all the test cases.
1548 * FIXME add more tests! cancel requests, verify the data, control
1549 * queueing, concurrent read+write threads, and so on.
1551 do_gettimeofday (&start);
1552 switch (param->test_num) {
1555 dev_dbg (&intf->dev, "TEST 0: NOP\n");
1559 /* Simple non-queued bulk I/O tests */
1561 if (dev->out_pipe == 0)
1563 dev_dbg (&intf->dev,
1564 "TEST 1: write %d bytes %u times\n",
1565 param->length, param->iterations);
1566 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1571 // FIRMWARE: bulk sink (maybe accepts short writes)
1572 retval = simple_io (urb, param->iterations, 0, 0, "test1");
1573 simple_free_urb (urb);
1576 if (dev->in_pipe == 0)
1578 dev_dbg (&intf->dev,
1579 "TEST 2: read %d bytes %u times\n",
1580 param->length, param->iterations);
1581 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1586 // FIRMWARE: bulk source (maybe generates short writes)
1587 retval = simple_io (urb, param->iterations, 0, 0, "test2");
1588 simple_free_urb (urb);
1591 if (dev->out_pipe == 0 || param->vary == 0)
1593 dev_dbg (&intf->dev,
1594 "TEST 3: write/%d 0..%d bytes %u times\n",
1595 param->vary, param->length, param->iterations);
1596 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1601 // FIRMWARE: bulk sink (maybe accepts short writes)
1602 retval = simple_io (urb, param->iterations, param->vary,
1604 simple_free_urb (urb);
1607 if (dev->in_pipe == 0 || param->vary == 0)
1609 dev_dbg (&intf->dev,
1610 "TEST 4: read/%d 0..%d bytes %u times\n",
1611 param->vary, param->length, param->iterations);
1612 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1617 // FIRMWARE: bulk source (maybe generates short writes)
1618 retval = simple_io (urb, param->iterations, param->vary,
1620 simple_free_urb (urb);
1623 /* Queued bulk I/O tests */
1625 if (dev->out_pipe == 0 || param->sglen == 0)
1627 dev_dbg (&intf->dev,
1628 "TEST 5: write %d sglists %d entries of %d bytes\n",
1630 param->sglen, param->length);
1631 sg = alloc_sglist (param->sglen, param->length, 0);
1636 // FIRMWARE: bulk sink (maybe accepts short writes)
1637 retval = perform_sglist (udev, param->iterations, dev->out_pipe,
1638 &req, sg, param->sglen);
1639 free_sglist (sg, param->sglen);
1643 if (dev->in_pipe == 0 || param->sglen == 0)
1645 dev_dbg (&intf->dev,
1646 "TEST 6: read %d sglists %d entries of %d bytes\n",
1648 param->sglen, param->length);
1649 sg = alloc_sglist (param->sglen, param->length, 0);
1654 // FIRMWARE: bulk source (maybe generates short writes)
1655 retval = perform_sglist (udev, param->iterations, dev->in_pipe,
1656 &req, sg, param->sglen);
1657 free_sglist (sg, param->sglen);
1660 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
1662 dev_dbg (&intf->dev,
1663 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
1664 param->vary, param->iterations,
1665 param->sglen, param->length);
1666 sg = alloc_sglist (param->sglen, param->length, param->vary);
1671 // FIRMWARE: bulk sink (maybe accepts short writes)
1672 retval = perform_sglist (udev, param->iterations, dev->out_pipe,
1673 &req, sg, param->sglen);
1674 free_sglist (sg, param->sglen);
1677 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
1679 dev_dbg (&intf->dev,
1680 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
1681 param->vary, param->iterations,
1682 param->sglen, param->length);
1683 sg = alloc_sglist (param->sglen, param->length, param->vary);
1688 // FIRMWARE: bulk source (maybe generates short writes)
1689 retval = perform_sglist (udev, param->iterations, dev->in_pipe,
1690 &req, sg, param->sglen);
1691 free_sglist (sg, param->sglen);
1694 /* non-queued sanity tests for control (chapter 9 subset) */
1697 dev_dbg (&intf->dev,
1698 "TEST 9: ch9 (subset) control tests, %d times\n",
1700 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1701 retval = ch9_postconfig (dev);
1703 dbg ("ch9 subset failed, iterations left %d", i);
1706 /* queued control messaging */
1708 if (param->sglen == 0)
1711 dev_dbg (&intf->dev,
1712 "TEST 10: queue %d control calls, %d times\n",
1715 retval = test_ctrl_queue (dev, param);
1718 /* simple non-queued unlinks (ring with one urb) */
1720 if (dev->in_pipe == 0 || !param->length)
1723 dev_dbg (&intf->dev, "TEST 11: unlink %d reads of %d\n",
1724 param->iterations, param->length);
1725 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1726 retval = unlink_simple (dev, dev->in_pipe,
1729 dev_dbg (&intf->dev, "unlink reads failed %d, "
1730 "iterations left %d\n", retval, i);
1733 if (dev->out_pipe == 0 || !param->length)
1736 dev_dbg (&intf->dev, "TEST 12: unlink %d writes of %d\n",
1737 param->iterations, param->length);
1738 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1739 retval = unlink_simple (dev, dev->out_pipe,
1742 dev_dbg (&intf->dev, "unlink writes failed %d, "
1743 "iterations left %d\n", retval, i);
1748 if (dev->out_pipe == 0 && dev->in_pipe == 0)
1751 dev_dbg (&intf->dev, "TEST 13: set/clear %d halts\n",
1753 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1754 retval = halt_simple (dev);
1757 DBG (dev, "halts failed, iterations left %d\n", i);
1760 /* control write tests */
1762 if (!dev->info->ctrl_out)
1764 dev_dbg (&intf->dev, "TEST 14: %d ep0out, 0..%d vary %d\n",
1765 param->iterations, param->length, param->vary);
1766 retval = ctrl_out (dev, param->iterations,
1767 param->length, param->vary);
1770 /* iso write tests */
1772 if (dev->out_iso_pipe == 0 || param->sglen == 0)
1774 dev_dbg (&intf->dev,
1775 "TEST 15: write %d iso, %d entries of %d bytes\n",
1777 param->sglen, param->length);
1778 // FIRMWARE: iso sink
1779 retval = test_iso_queue (dev, param,
1780 dev->out_iso_pipe, dev->iso_out);
1783 /* iso read tests */
1785 if (dev->in_iso_pipe == 0 || param->sglen == 0)
1787 dev_dbg (&intf->dev,
1788 "TEST 16: read %d iso, %d entries of %d bytes\n",
1790 param->sglen, param->length);
1791 // FIRMWARE: iso source
1792 retval = test_iso_queue (dev, param,
1793 dev->in_iso_pipe, dev->iso_in);
1796 // FIXME unlink from queue (ring with N urbs)
1798 // FIXME scatterlist cancel (needs helper thread)
1801 do_gettimeofday (¶m->duration);
1802 param->duration.tv_sec -= start.tv_sec;
1803 param->duration.tv_usec -= start.tv_usec;
1804 if (param->duration.tv_usec < 0) {
1805 param->duration.tv_usec += 1000 * 1000;
1806 param->duration.tv_sec -= 1;
1812 /*-------------------------------------------------------------------------*/
1814 static unsigned force_interrupt = 0;
1815 module_param (force_interrupt, uint, 0);
1816 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt");
1819 static unsigned short vendor;
1820 module_param(vendor, ushort, 0);
1821 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)");
1823 static unsigned short product;
1824 module_param(product, ushort, 0);
1825 MODULE_PARM_DESC (product, "product code (from vendor)");
1829 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
1831 struct usb_device *udev;
1832 struct usbtest_dev *dev;
1833 struct usbtest_info *info;
1834 char *rtest, *wtest;
1835 char *irtest, *iwtest;
1837 udev = interface_to_usbdev (intf);
1840 /* specify devices by module parameters? */
1841 if (id->match_flags == 0) {
1842 /* vendor match required, product match optional */
1843 if (!vendor || udev->descriptor.idVendor != (u16)vendor)
1845 if (product && udev->descriptor.idProduct != (u16)product)
1847 dbg ("matched module params, vend=0x%04x prod=0x%04x",
1848 udev->descriptor.idVendor,
1849 udev->descriptor.idProduct);
1853 dev = kmalloc (sizeof *dev, SLAB_KERNEL);
1856 memset (dev, 0, sizeof *dev);
1857 info = (struct usbtest_info *) id->driver_info;
1859 init_MUTEX (&dev->sem);
1863 /* cacheline-aligned scratch for i/o */
1864 if ((dev->buf = kmalloc (TBUF_SIZE, SLAB_KERNEL)) == 0) {
1869 /* NOTE this doesn't yet test the handful of difference that are
1870 * visible with high speed interrupts: bigger maxpacket (1K) and
1871 * "high bandwidth" modes (up to 3 packets/uframe).
1874 irtest = iwtest = "";
1875 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
1877 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in);
1881 dev->out_pipe = usb_sndintpipe (udev, info->ep_out);
1882 wtest = " intr-out";
1885 if (info->autoconf) {
1888 status = get_endpoints (dev, intf);
1890 dbg ("couldn't get endpoints, %d\n", status);
1893 /* may find bulk or ISO pipes */
1896 dev->in_pipe = usb_rcvbulkpipe (udev,
1899 dev->out_pipe = usb_sndbulkpipe (udev,
1905 wtest = " bulk-out";
1906 if (dev->in_iso_pipe)
1908 if (dev->out_iso_pipe)
1909 iwtest = " iso-out";
1912 usb_set_intfdata (intf, dev);
1913 dev_info (&intf->dev, "%s\n", info->name);
1914 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n",
1916 switch (udev->speed) {
1917 case USB_SPEED_LOW: tmp = "low"; break;
1918 case USB_SPEED_FULL: tmp = "full"; break;
1919 case USB_SPEED_HIGH: tmp = "high"; break;
1920 default: tmp = "unknown"; break;
1922 info->ctrl_out ? " in/out" : "",
1925 info->alt >= 0 ? " (+alt)" : "");
1929 static void usbtest_disconnect (struct usb_interface *intf)
1931 struct usbtest_dev *dev = usb_get_intfdata (intf);
1935 usb_set_intfdata (intf, NULL);
1936 dev_dbg (&intf->dev, "disconnect\n");
1940 /* Basic testing only needs a device that can source or sink bulk traffic.
1941 * Any device can test control transfers (default with GENERIC binding).
1943 * Several entries work with the default EP0 implementation that's built
1944 * into EZ-USB chips. There's a default vendor ID which can be overridden
1945 * by (very) small config EEPROMS, but otherwise all these devices act
1946 * identically until firmware is loaded: only EP0 works. It turns out
1947 * to be easy to make other endpoints work, without modifying that EP0
1948 * behavior. For now, we expect that kind of firmware.
1951 /* an21xx or fx versions of ez-usb */
1952 static struct usbtest_info ez1_info = {
1953 .name = "EZ-USB device",
1959 /* fx2 version of ez-usb */
1960 static struct usbtest_info ez2_info = {
1961 .name = "FX2 device",
1967 /* ezusb family device with dedicated usb test firmware,
1969 static struct usbtest_info fw_info = {
1970 .name = "usb test device",
1974 .autoconf = 1, // iso and ctrl_out need autoconf
1976 .iso = 1, // iso_ep's are #8 in/out
1979 /* peripheral running Linux and 'zero.c' test firmware, or
1980 * its user-mode cousin. different versions of this use
1981 * different hardware with the same vendor/product codes.
1982 * host side MUST rely on the endpoint descriptors.
1984 static struct usbtest_info gz_info = {
1985 .name = "Linux gadget zero",
1991 static struct usbtest_info um_info = {
1992 .name = "Linux user mode test driver",
1997 static struct usbtest_info um2_info = {
1998 .name = "Linux user mode ISO test driver",
2005 /* this is a nice source of high speed bulk data;
2006 * uses an FX2, with firmware provided in the device
2008 static struct usbtest_info ibot2_info = {
2009 .name = "iBOT2 webcam",
2016 /* we can use any device to test control traffic */
2017 static struct usbtest_info generic_info = {
2018 .name = "Generic USB device",
2023 // FIXME remove this
2024 static struct usbtest_info hact_info = {
2032 static struct usb_device_id id_table [] = {
2034 { USB_DEVICE (0x0547, 0x1002),
2035 .driver_info = (unsigned long) &hact_info,
2038 /*-------------------------------------------------------------*/
2040 /* EZ-USB devices which download firmware to replace (or in our
2041 * case augment) the default device implementation.
2044 /* generic EZ-USB FX controller */
2045 { USB_DEVICE (0x0547, 0x2235),
2046 .driver_info = (unsigned long) &ez1_info,
2049 /* CY3671 development board with EZ-USB FX */
2050 { USB_DEVICE (0x0547, 0x0080),
2051 .driver_info = (unsigned long) &ez1_info,
2054 /* generic EZ-USB FX2 controller (or development board) */
2055 { USB_DEVICE (0x04b4, 0x8613),
2056 .driver_info = (unsigned long) &ez2_info,
2059 /* re-enumerated usb test device firmware */
2060 { USB_DEVICE (0xfff0, 0xfff0),
2061 .driver_info = (unsigned long) &fw_info,
2064 /* "Gadget Zero" firmware runs under Linux */
2065 { USB_DEVICE (0x0525, 0xa4a0),
2066 .driver_info = (unsigned long) &gz_info,
2069 /* so does a user-mode variant */
2070 { USB_DEVICE (0x0525, 0xa4a4),
2071 .driver_info = (unsigned long) &um_info,
2074 /* ... and a user-mode variant that talks iso */
2075 { USB_DEVICE (0x0525, 0xa4a3),
2076 .driver_info = (unsigned long) &um2_info,
2080 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2081 // this does not coexist with the real Keyspan 19qi driver!
2082 { USB_DEVICE (0x06cd, 0x010b),
2083 .driver_info = (unsigned long) &ez1_info,
2087 /*-------------------------------------------------------------*/
2090 /* iBOT2 makes a nice source of high speed bulk-in data */
2091 // this does not coexist with a real iBOT2 driver!
2092 { USB_DEVICE (0x0b62, 0x0059),
2093 .driver_info = (unsigned long) &ibot2_info,
2097 /*-------------------------------------------------------------*/
2100 /* module params can specify devices to use for control tests */
2101 { .driver_info = (unsigned long) &generic_info, },
2104 /*-------------------------------------------------------------*/
2108 MODULE_DEVICE_TABLE (usb, id_table);
2110 static struct usb_driver usbtest_driver = {
2111 .owner = THIS_MODULE,
2113 .id_table = id_table,
2114 .probe = usbtest_probe,
2115 .ioctl = usbtest_ioctl,
2116 .disconnect = usbtest_disconnect,
2119 /*-------------------------------------------------------------------------*/
2121 static int __init usbtest_init (void)
2125 dbg ("params: vend=0x%04x prod=0x%04x", vendor, product);
2127 return usb_register (&usbtest_driver);
2129 module_init (usbtest_init);
2131 static void __exit usbtest_exit (void)
2133 usb_deregister (&usbtest_driver);
2135 module_exit (usbtest_exit);
2137 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver");
2138 MODULE_LICENSE ("GPL");