1 #include <linux/config.h>
2 #include <linux/kernel.h>
3 #include <linux/errno.h>
4 #include <linux/init.h>
5 #include <linux/slab.h>
7 #include <linux/module.h>
8 #include <linux/moduleparam.h>
9 #include <linux/scatterlist.h>
11 #include <linux/usb.h>
14 /*-------------------------------------------------------------------------*/
16 // FIXME make these public somewhere; usbdevfs.h?
18 struct usbtest_param
{
20 unsigned test_num
; /* 0..(TEST_CASES-1) */
27 struct timeval duration
;
29 #define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param)
31 /*-------------------------------------------------------------------------*/
33 #define GENERIC /* let probe() bind using module params */
35 /* Some devices that can be used for testing will have "real" drivers.
36 * Entries for those need to be enabled here by hand, after disabling
39 //#define IBOT2 /* grab iBOT2 webcams */
40 //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */
42 /*-------------------------------------------------------------------------*/
46 u8 ep_in
; /* bulk/intr source */
47 u8 ep_out
; /* bulk/intr sink */
48 unsigned autoconf
: 1;
49 unsigned ctrl_out
: 1;
50 unsigned iso
: 1; /* try iso in/out */
54 /* this is accessed only through usbfs ioctl calls.
55 * one ioctl to issue a test ... one lock per device.
56 * tests create other threads if they need them.
57 * urbs and buffers are allocated dynamically,
58 * and data generated deterministically.
61 struct usb_interface
*intf
;
62 struct usbtest_info
*info
;
67 struct usb_endpoint_descriptor
*iso_in
, *iso_out
;
74 static struct usb_device
*testdev_to_usbdev (struct usbtest_dev
*test
)
76 return interface_to_usbdev (test
->intf
);
79 /* set up all urbs so they can be used with either bulk or interrupt */
80 #define INTERRUPT_RATE 1 /* msec/transfer */
82 #define xprintk(tdev,level,fmt,args...) \
83 dev_printk(level , &(tdev)->intf->dev , fmt , ## args)
86 #define DBG(dev,fmt,args...) \
87 xprintk(dev , KERN_DEBUG , fmt , ## args)
89 #define DBG(dev,fmt,args...) \
96 #define VDBG(dev,fmt,args...) \
100 #define ERROR(dev,fmt,args...) \
101 xprintk(dev , KERN_ERR , fmt , ## args)
102 #define WARN(dev,fmt,args...) \
103 xprintk(dev , KERN_WARNING , fmt , ## args)
104 #define INFO(dev,fmt,args...) \
105 xprintk(dev , KERN_INFO , fmt , ## args)
107 /*-------------------------------------------------------------------------*/
110 get_endpoints (struct usbtest_dev
*dev
, struct usb_interface
*intf
)
113 struct usb_host_interface
*alt
;
114 struct usb_host_endpoint
*in
, *out
;
115 struct usb_host_endpoint
*iso_in
, *iso_out
;
116 struct usb_device
*udev
;
118 for (tmp
= 0; tmp
< intf
->num_altsetting
; tmp
++) {
122 iso_in
= iso_out
= NULL
;
123 alt
= intf
->altsetting
+ tmp
;
125 /* take the first altsetting with in-bulk + out-bulk;
126 * ignore other endpoints and altsetttings.
128 for (ep
= 0; ep
< alt
->desc
.bNumEndpoints
; ep
++) {
129 struct usb_host_endpoint
*e
;
131 e
= alt
->endpoint
+ ep
;
132 switch (e
->desc
.bmAttributes
) {
133 case USB_ENDPOINT_XFER_BULK
:
135 case USB_ENDPOINT_XFER_ISOC
:
142 if (e
->desc
.bEndpointAddress
& USB_DIR_IN
) {
151 if (e
->desc
.bEndpointAddress
& USB_DIR_IN
) {
159 if ((in
&& out
) || (iso_in
&& iso_out
))
165 udev
= testdev_to_usbdev (dev
);
166 if (alt
->desc
.bAlternateSetting
!= 0) {
167 tmp
= usb_set_interface (udev
,
168 alt
->desc
.bInterfaceNumber
,
169 alt
->desc
.bAlternateSetting
);
175 dev
->in_pipe
= usb_rcvbulkpipe (udev
,
176 in
->desc
.bEndpointAddress
& USB_ENDPOINT_NUMBER_MASK
);
177 dev
->out_pipe
= usb_sndbulkpipe (udev
,
178 out
->desc
.bEndpointAddress
& USB_ENDPOINT_NUMBER_MASK
);
181 dev
->iso_in
= &iso_in
->desc
;
182 dev
->in_iso_pipe
= usb_rcvisocpipe (udev
,
183 iso_in
->desc
.bEndpointAddress
184 & USB_ENDPOINT_NUMBER_MASK
);
185 dev
->iso_out
= &iso_out
->desc
;
186 dev
->out_iso_pipe
= usb_sndisocpipe (udev
,
187 iso_out
->desc
.bEndpointAddress
188 & USB_ENDPOINT_NUMBER_MASK
);
193 /*-------------------------------------------------------------------------*/
195 /* Support for testing basic non-queued I/O streams.
197 * These just package urbs as requests that can be easily canceled.
198 * Each urb's data buffer is dynamically allocated; callers can fill
199 * them with non-zero test data (or test for it) when appropriate.
202 static void simple_callback (struct urb
*urb
, struct pt_regs
*regs
)
204 complete ((struct completion
*) urb
->context
);
207 static struct urb
*simple_alloc_urb (
208 struct usb_device
*udev
,
217 urb
= usb_alloc_urb (0, SLAB_KERNEL
);
220 usb_fill_bulk_urb (urb
, udev
, pipe
, NULL
, bytes
, simple_callback
, NULL
);
221 urb
->interval
= (udev
->speed
== USB_SPEED_HIGH
)
222 ? (INTERRUPT_RATE
<< 3)
224 urb
->transfer_flags
= URB_NO_TRANSFER_DMA_MAP
;
225 if (usb_pipein (pipe
))
226 urb
->transfer_flags
|= URB_SHORT_NOT_OK
;
227 urb
->transfer_buffer
= usb_buffer_alloc (udev
, bytes
, SLAB_KERNEL
,
229 if (!urb
->transfer_buffer
) {
233 memset (urb
->transfer_buffer
, 0, bytes
);
237 static unsigned pattern
= 0;
238 module_param (pattern
, uint
, S_IRUGO
);
239 // MODULE_PARM_DESC (pattern, "i/o pattern (0 == zeroes)");
241 static inline void simple_fill_buf (struct urb
*urb
)
244 u8
*buf
= urb
->transfer_buffer
;
245 unsigned len
= urb
->transfer_buffer_length
;
251 memset (buf
, 0, len
);
254 for (i
= 0; i
< len
; i
++)
255 *buf
++ = (u8
) (i
% 63);
260 static inline int simple_check_buf (struct urb
*urb
)
264 u8
*buf
= urb
->transfer_buffer
;
265 unsigned len
= urb
->actual_length
;
267 for (i
= 0; i
< len
; i
++, buf
++) {
269 /* all-zeroes has no synchronization issues */
273 /* mod63 stays in sync with short-terminated transfers,
274 * or otherwise when host and gadget agree on how large
275 * each usb transfer request should be. resync is done
276 * with set_interface or set_config.
281 /* always fail unsupported patterns */
286 if (*buf
== expected
)
288 dbg ("buf[%d] = %d (not %d)", i
, *buf
, expected
);
294 static void simple_free_urb (struct urb
*urb
)
296 usb_buffer_free (urb
->dev
, urb
->transfer_buffer_length
,
297 urb
->transfer_buffer
, urb
->transfer_dma
);
301 static int simple_io (
309 struct usb_device
*udev
= urb
->dev
;
310 int max
= urb
->transfer_buffer_length
;
311 struct completion completion
;
314 urb
->context
= &completion
;
315 while (retval
== 0 && iterations
-- > 0) {
316 init_completion (&completion
);
317 if (usb_pipeout (urb
->pipe
))
318 simple_fill_buf (urb
);
319 if ((retval
= usb_submit_urb (urb
, SLAB_KERNEL
)) != 0)
322 /* NOTE: no timeouts; can't be broken out of by interrupt */
323 wait_for_completion (&completion
);
324 retval
= urb
->status
;
326 if (retval
== 0 && usb_pipein (urb
->pipe
))
327 retval
= simple_check_buf (urb
);
330 int len
= urb
->transfer_buffer_length
;
335 len
= (vary
< max
) ? vary
: max
;
336 urb
->transfer_buffer_length
= len
;
339 /* FIXME if endpoint halted, clear halt (and log) */
341 urb
->transfer_buffer_length
= max
;
343 if (expected
!= retval
)
345 "%s failed, iterations left %d, status %d (not %d)\n",
346 label
, iterations
, retval
, expected
);
351 /*-------------------------------------------------------------------------*/
353 /* We use scatterlist primitives to test queued I/O.
354 * Yes, this also tests the scatterlist primitives.
357 static void free_sglist (struct scatterlist
*sg
, int nents
)
363 for (i
= 0; i
< nents
; i
++) {
366 kfree (page_address (sg
[i
].page
) + sg
[i
].offset
);
371 static struct scatterlist
*
372 alloc_sglist (int nents
, int max
, int vary
)
374 struct scatterlist
*sg
;
378 sg
= kmalloc (nents
* sizeof *sg
, SLAB_KERNEL
);
382 for (i
= 0; i
< nents
; i
++) {
385 buf
= kmalloc (size
, SLAB_KERNEL
);
390 memset (buf
, 0, size
);
392 /* kmalloc pages are always physically contiguous! */
393 sg_init_one(&sg
[i
], buf
, size
);
399 size
= (vary
< max
) ? vary
: max
;
406 static int perform_sglist (
407 struct usb_device
*udev
,
410 struct usb_sg_request
*req
,
411 struct scatterlist
*sg
,
417 while (retval
== 0 && iterations
-- > 0) {
418 retval
= usb_sg_init (req
, udev
, pipe
,
419 (udev
->speed
== USB_SPEED_HIGH
)
420 ? (INTERRUPT_RATE
<< 3)
422 sg
, nents
, 0, SLAB_KERNEL
);
427 retval
= req
->status
;
429 /* FIXME if endpoint halted, clear halt (and log) */
432 // FIXME for unlink or fault handling tests, don't report
433 // failure if retval is as we expected ...
436 dbg ("perform_sglist failed, iterations left %d, status %d",
442 /*-------------------------------------------------------------------------*/
444 /* unqueued control message testing
446 * there's a nice set of device functional requirements in chapter 9 of the
447 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
448 * special test firmware.
450 * we know the device is configured (or suspended) by the time it's visible
451 * through usbfs. we can't change that, so we won't test enumeration (which
452 * worked 'well enough' to get here, this time), power management (ditto),
453 * or remote wakeup (which needs human interaction).
456 static unsigned realworld
= 1;
457 module_param (realworld
, uint
, 0);
458 MODULE_PARM_DESC (realworld
, "clear to demand stricter spec compliance");
460 static int get_altsetting (struct usbtest_dev
*dev
)
462 struct usb_interface
*iface
= dev
->intf
;
463 struct usb_device
*udev
= interface_to_usbdev (iface
);
466 retval
= usb_control_msg (udev
, usb_rcvctrlpipe (udev
, 0),
467 USB_REQ_GET_INTERFACE
, USB_DIR_IN
|USB_RECIP_INTERFACE
,
468 0, iface
->altsetting
[0].desc
.bInterfaceNumber
,
469 dev
->buf
, 1, USB_CTRL_GET_TIMEOUT
);
481 static int set_altsetting (struct usbtest_dev
*dev
, int alternate
)
483 struct usb_interface
*iface
= dev
->intf
;
484 struct usb_device
*udev
;
486 if (alternate
< 0 || alternate
>= 256)
489 udev
= interface_to_usbdev (iface
);
490 return usb_set_interface (udev
,
491 iface
->altsetting
[0].desc
.bInterfaceNumber
,
495 static int is_good_config (char *buf
, int len
)
497 struct usb_config_descriptor
*config
;
499 if (len
< sizeof *config
)
501 config
= (struct usb_config_descriptor
*) buf
;
503 switch (config
->bDescriptorType
) {
505 case USB_DT_OTHER_SPEED_CONFIG
:
506 if (config
->bLength
!= 9) {
507 dbg ("bogus config descriptor length");
510 /* this bit 'must be 1' but often isn't */
511 if (!realworld
&& !(config
->bmAttributes
& 0x80)) {
512 dbg ("high bit of config attributes not set");
515 if (config
->bmAttributes
& 0x1f) { /* reserved == 0 */
516 dbg ("reserved config bits set");
524 if (le16_to_cpu(config
->wTotalLength
) == len
) /* read it all */
526 if (le16_to_cpu(config
->wTotalLength
) >= TBUF_SIZE
) /* max partial read */
528 dbg ("bogus config descriptor read size");
532 /* sanity test for standard requests working with usb_control_mesg() and some
533 * of the utility functions which use it.
535 * this doesn't test how endpoint halts behave or data toggles get set, since
536 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
537 * halt or toggle). toggle testing is impractical without support from hcds.
539 * this avoids failing devices linux would normally work with, by not testing
540 * config/altsetting operations for devices that only support their defaults.
541 * such devices rarely support those needless operations.
543 * NOTE that since this is a sanity test, it's not examining boundary cases
544 * to see if usbcore, hcd, and device all behave right. such testing would
545 * involve varied read sizes and other operation sequences.
547 static int ch9_postconfig (struct usbtest_dev
*dev
)
549 struct usb_interface
*iface
= dev
->intf
;
550 struct usb_device
*udev
= interface_to_usbdev (iface
);
553 /* [9.2.3] if there's more than one altsetting, we need to be able to
554 * set and get each one. mostly trusts the descriptors from usbcore.
556 for (i
= 0; i
< iface
->num_altsetting
; i
++) {
558 /* 9.2.3 constrains the range here */
559 alt
= iface
->altsetting
[i
].desc
.bAlternateSetting
;
560 if (alt
< 0 || alt
>= iface
->num_altsetting
) {
561 dev_dbg (&iface
->dev
,
562 "invalid alt [%d].bAltSetting = %d\n",
566 /* [real world] get/set unimplemented if there's only one */
567 if (realworld
&& iface
->num_altsetting
== 1)
570 /* [9.4.10] set_interface */
571 retval
= set_altsetting (dev
, alt
);
573 dev_dbg (&iface
->dev
, "can't set_interface = %d, %d\n",
578 /* [9.4.4] get_interface always works */
579 retval
= get_altsetting (dev
);
581 dev_dbg (&iface
->dev
, "get alt should be %d, was %d\n",
583 return (retval
< 0) ? retval
: -EDOM
;
588 /* [real world] get_config unimplemented if there's only one */
589 if (!realworld
|| udev
->descriptor
.bNumConfigurations
!= 1) {
590 int expected
= udev
->actconfig
->desc
.bConfigurationValue
;
592 /* [9.4.2] get_configuration always works
593 * ... although some cheap devices (like one TI Hub I've got)
594 * won't return config descriptors except before set_config.
596 retval
= usb_control_msg (udev
, usb_rcvctrlpipe (udev
, 0),
597 USB_REQ_GET_CONFIGURATION
,
598 USB_DIR_IN
| USB_RECIP_DEVICE
,
599 0, 0, dev
->buf
, 1, USB_CTRL_GET_TIMEOUT
);
600 if (retval
!= 1 || dev
->buf
[0] != expected
) {
601 dev_dbg (&iface
->dev
, "get config --> %d %d (1 %d)\n",
602 retval
, dev
->buf
[0], expected
);
603 return (retval
< 0) ? retval
: -EDOM
;
607 /* there's always [9.4.3] a device descriptor [9.6.1] */
608 retval
= usb_get_descriptor (udev
, USB_DT_DEVICE
, 0,
609 dev
->buf
, sizeof udev
->descriptor
);
610 if (retval
!= sizeof udev
->descriptor
) {
611 dev_dbg (&iface
->dev
, "dev descriptor --> %d\n", retval
);
612 return (retval
< 0) ? retval
: -EDOM
;
615 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
616 for (i
= 0; i
< udev
->descriptor
.bNumConfigurations
; i
++) {
617 retval
= usb_get_descriptor (udev
, USB_DT_CONFIG
, i
,
618 dev
->buf
, TBUF_SIZE
);
619 if (!is_good_config (dev
->buf
, retval
)) {
620 dev_dbg (&iface
->dev
,
621 "config [%d] descriptor --> %d\n",
623 return (retval
< 0) ? retval
: -EDOM
;
626 // FIXME cross-checking udev->config[i] to make sure usbcore
627 // parsed it right (etc) would be good testing paranoia
630 /* and sometimes [9.2.6.6] speed dependent descriptors */
631 if (le16_to_cpu(udev
->descriptor
.bcdUSB
) == 0x0200) {
632 struct usb_qualifier_descriptor
*d
= NULL
;
634 /* device qualifier [9.6.2] */
635 retval
= usb_get_descriptor (udev
,
636 USB_DT_DEVICE_QUALIFIER
, 0, dev
->buf
,
637 sizeof (struct usb_qualifier_descriptor
));
638 if (retval
== -EPIPE
) {
639 if (udev
->speed
== USB_SPEED_HIGH
) {
640 dev_dbg (&iface
->dev
,
641 "hs dev qualifier --> %d\n",
643 return (retval
< 0) ? retval
: -EDOM
;
645 /* usb2.0 but not high-speed capable; fine */
646 } else if (retval
!= sizeof (struct usb_qualifier_descriptor
)) {
647 dev_dbg (&iface
->dev
, "dev qualifier --> %d\n", retval
);
648 return (retval
< 0) ? retval
: -EDOM
;
650 d
= (struct usb_qualifier_descriptor
*) dev
->buf
;
652 /* might not have [9.6.2] any other-speed configs [9.6.4] */
654 unsigned max
= d
->bNumConfigurations
;
655 for (i
= 0; i
< max
; i
++) {
656 retval
= usb_get_descriptor (udev
,
657 USB_DT_OTHER_SPEED_CONFIG
, i
,
658 dev
->buf
, TBUF_SIZE
);
659 if (!is_good_config (dev
->buf
, retval
)) {
660 dev_dbg (&iface
->dev
,
661 "other speed config --> %d\n",
663 return (retval
< 0) ? retval
: -EDOM
;
668 // FIXME fetch strings from at least the device descriptor
670 /* [9.4.5] get_status always works */
671 retval
= usb_get_status (udev
, USB_RECIP_DEVICE
, 0, dev
->buf
);
673 dev_dbg (&iface
->dev
, "get dev status --> %d\n", retval
);
674 return (retval
< 0) ? retval
: -EDOM
;
677 // FIXME configuration.bmAttributes says if we could try to set/clear
678 // the device's remote wakeup feature ... if we can, test that here
680 retval
= usb_get_status (udev
, USB_RECIP_INTERFACE
,
681 iface
->altsetting
[0].desc
.bInterfaceNumber
, dev
->buf
);
683 dev_dbg (&iface
->dev
, "get interface status --> %d\n", retval
);
684 return (retval
< 0) ? retval
: -EDOM
;
686 // FIXME get status for each endpoint in the interface
691 /*-------------------------------------------------------------------------*/
693 /* use ch9 requests to test whether:
694 * (a) queues work for control, keeping N subtests queued and
695 * active (auto-resubmit) for M loops through the queue.
696 * (b) protocol stalls (control-only) will autorecover.
697 * it's not like bulk/intr; no halt clearing.
698 * (c) short control reads are reported and handled.
699 * (d) queues are always processed in-order
704 struct usbtest_dev
*dev
;
705 struct completion complete
;
710 struct usbtest_param
*param
;
714 #define NUM_SUBCASES 15 /* how many test subcases here? */
717 struct usb_ctrlrequest setup
;
722 static void ctrl_complete (struct urb
*urb
, struct pt_regs
*regs
)
724 struct ctrl_ctx
*ctx
= urb
->context
;
725 struct usb_ctrlrequest
*reqp
;
726 struct subcase
*subcase
;
727 int status
= urb
->status
;
729 reqp
= (struct usb_ctrlrequest
*)urb
->setup_packet
;
730 subcase
= container_of (reqp
, struct subcase
, setup
);
732 spin_lock (&ctx
->lock
);
736 /* queue must transfer and complete in fifo order, unless
737 * usb_unlink_urb() is used to unlink something not at the
738 * physical queue head (not tested).
740 if (subcase
->number
> 0) {
741 if ((subcase
->number
- ctx
->last
) != 1) {
742 dbg ("subcase %d completed out of order, last %d",
743 subcase
->number
, ctx
->last
);
745 ctx
->last
= subcase
->number
;
749 ctx
->last
= subcase
->number
;
751 /* succeed or fault in only one way? */
752 if (status
== subcase
->expected
)
755 /* async unlink for cleanup? */
756 else if (status
!= -ECONNRESET
) {
758 /* some faults are allowed, not required */
759 if (subcase
->expected
> 0 && (
760 ((urb
->status
== -subcase
->expected
/* happened */
761 || urb
->status
== 0)))) /* didn't */
763 /* sometimes more than one fault is allowed */
764 else if (subcase
->number
== 12 && status
== -EPIPE
)
767 dbg ("subtest %d error, status %d",
768 subcase
->number
, status
);
771 /* unexpected status codes mean errors; ideally, in hardware */
774 if (ctx
->status
== 0) {
777 ctx
->status
= status
;
778 info ("control queue %02x.%02x, err %d, %d left",
779 reqp
->bRequestType
, reqp
->bRequest
,
782 /* FIXME this "unlink everything" exit route should
783 * be a separate test case.
786 /* unlink whatever's still pending */
787 for (i
= 1; i
< ctx
->param
->sglen
; i
++) {
788 struct urb
*u
= ctx
->urb
[
789 (i
+ subcase
->number
) % ctx
->param
->sglen
];
791 if (u
== urb
|| !u
->dev
)
793 status
= usb_unlink_urb (u
);
800 dbg ("urb unlink --> %d", status
);
803 status
= ctx
->status
;
807 /* resubmit if we need to, else mark this as done */
808 if ((status
== 0) && (ctx
->pending
< ctx
->count
)) {
809 if ((status
= usb_submit_urb (urb
, SLAB_ATOMIC
)) != 0) {
810 dbg ("can't resubmit ctrl %02x.%02x, err %d",
811 reqp
->bRequestType
, reqp
->bRequest
, status
);
818 /* signal completion when nothing's queued */
819 if (ctx
->pending
== 0)
820 complete (&ctx
->complete
);
821 spin_unlock (&ctx
->lock
);
825 test_ctrl_queue (struct usbtest_dev
*dev
, struct usbtest_param
*param
)
827 struct usb_device
*udev
= testdev_to_usbdev (dev
);
829 struct ctrl_ctx context
;
832 spin_lock_init (&context
.lock
);
834 init_completion (&context
.complete
);
835 context
.count
= param
->sglen
* param
->iterations
;
837 context
.status
= -ENOMEM
;
838 context
.param
= param
;
841 /* allocate and init the urbs we'll queue.
842 * as with bulk/intr sglists, sglen is the queue depth; it also
843 * controls which subtests run (more tests than sglen) or rerun.
845 urb
= kmalloc (param
->sglen
* sizeof (struct urb
*), SLAB_KERNEL
);
848 memset (urb
, 0, param
->sglen
* sizeof (struct urb
*));
849 for (i
= 0; i
< param
->sglen
; i
++) {
850 int pipe
= usb_rcvctrlpipe (udev
, 0);
853 struct usb_ctrlrequest req
;
854 struct subcase
*reqp
;
857 /* requests here are mostly expected to succeed on any
858 * device, but some are chosen to trigger protocol stalls
861 memset (&req
, 0, sizeof req
);
862 req
.bRequest
= USB_REQ_GET_DESCRIPTOR
;
863 req
.bRequestType
= USB_DIR_IN
|USB_RECIP_DEVICE
;
865 switch (i
% NUM_SUBCASES
) {
866 case 0: // get device descriptor
867 req
.wValue
= cpu_to_le16 (USB_DT_DEVICE
<< 8);
868 len
= sizeof (struct usb_device_descriptor
);
870 case 1: // get first config descriptor (only)
871 req
.wValue
= cpu_to_le16 ((USB_DT_CONFIG
<< 8) | 0);
872 len
= sizeof (struct usb_config_descriptor
);
874 case 2: // get altsetting (OFTEN STALLS)
875 req
.bRequest
= USB_REQ_GET_INTERFACE
;
876 req
.bRequestType
= USB_DIR_IN
|USB_RECIP_INTERFACE
;
877 // index = 0 means first interface
881 case 3: // get interface status
882 req
.bRequest
= USB_REQ_GET_STATUS
;
883 req
.bRequestType
= USB_DIR_IN
|USB_RECIP_INTERFACE
;
887 case 4: // get device status
888 req
.bRequest
= USB_REQ_GET_STATUS
;
889 req
.bRequestType
= USB_DIR_IN
|USB_RECIP_DEVICE
;
892 case 5: // get device qualifier (MAY STALL)
893 req
.wValue
= cpu_to_le16 (USB_DT_DEVICE_QUALIFIER
<< 8);
894 len
= sizeof (struct usb_qualifier_descriptor
);
895 if (udev
->speed
!= USB_SPEED_HIGH
)
898 case 6: // get first config descriptor, plus interface
899 req
.wValue
= cpu_to_le16 ((USB_DT_CONFIG
<< 8) | 0);
900 len
= sizeof (struct usb_config_descriptor
);
901 len
+= sizeof (struct usb_interface_descriptor
);
903 case 7: // get interface descriptor (ALWAYS STALLS)
904 req
.wValue
= cpu_to_le16 (USB_DT_INTERFACE
<< 8);
906 len
= sizeof (struct usb_interface_descriptor
);
909 // NOTE: two consecutive stalls in the queue here.
910 // that tests fault recovery a bit more aggressively.
911 case 8: // clear endpoint halt (USUALLY STALLS)
912 req
.bRequest
= USB_REQ_CLEAR_FEATURE
;
913 req
.bRequestType
= USB_RECIP_ENDPOINT
;
914 // wValue 0 == ep halt
915 // wIndex 0 == ep0 (shouldn't halt!)
917 pipe
= usb_sndctrlpipe (udev
, 0);
920 case 9: // get endpoint status
921 req
.bRequest
= USB_REQ_GET_STATUS
;
922 req
.bRequestType
= USB_DIR_IN
|USB_RECIP_ENDPOINT
;
926 case 10: // trigger short read (EREMOTEIO)
927 req
.wValue
= cpu_to_le16 ((USB_DT_CONFIG
<< 8) | 0);
929 expected
= -EREMOTEIO
;
931 // NOTE: two consecutive _different_ faults in the queue.
932 case 11: // get endpoint descriptor (ALWAYS STALLS)
933 req
.wValue
= cpu_to_le16 (USB_DT_ENDPOINT
<< 8);
935 len
= sizeof (struct usb_interface_descriptor
);
938 // NOTE: sometimes even a third fault in the queue!
939 case 12: // get string 0 descriptor (MAY STALL)
940 req
.wValue
= cpu_to_le16 (USB_DT_STRING
<< 8);
941 // string == 0, for language IDs
942 len
= sizeof (struct usb_interface_descriptor
);
943 // may succeed when > 4 languages
944 expected
= EREMOTEIO
; // or EPIPE, if no strings
946 case 13: // short read, resembling case 10
947 req
.wValue
= cpu_to_le16 ((USB_DT_CONFIG
<< 8) | 0);
948 // last data packet "should" be DATA1, not DATA0
949 len
= 1024 - udev
->descriptor
.bMaxPacketSize0
;
950 expected
= -EREMOTEIO
;
952 case 14: // short read; try to fill the last packet
953 req
.wValue
= cpu_to_le16 ((USB_DT_DEVICE
<< 8) | 0);
954 // device descriptor size == 18 bytes
955 len
= udev
->descriptor
.bMaxPacketSize0
;
957 case 8: len
= 24; break;
958 case 16: len
= 32; break;
960 expected
= -EREMOTEIO
;
963 err ("bogus number of ctrl queue testcases!");
964 context
.status
= -EINVAL
;
967 req
.wLength
= cpu_to_le16 (len
);
968 urb
[i
] = u
= simple_alloc_urb (udev
, pipe
, len
);
972 reqp
= usb_buffer_alloc (udev
, sizeof *reqp
, SLAB_KERNEL
,
977 reqp
->number
= i
% NUM_SUBCASES
;
978 reqp
->expected
= expected
;
979 u
->setup_packet
= (char *) &reqp
->setup
;
980 u
->transfer_flags
|= URB_NO_SETUP_DMA_MAP
;
982 u
->context
= &context
;
983 u
->complete
= ctrl_complete
;
988 spin_lock_irq (&context
.lock
);
989 for (i
= 0; i
< param
->sglen
; i
++) {
990 context
.status
= usb_submit_urb (urb
[i
], SLAB_ATOMIC
);
991 if (context
.status
!= 0) {
992 dbg ("can't submit urb[%d], status %d",
994 context
.count
= context
.pending
;
999 spin_unlock_irq (&context
.lock
);
1001 /* FIXME set timer and time out; provide a disconnect hook */
1003 /* wait for the last one to complete */
1004 if (context
.pending
> 0)
1005 wait_for_completion (&context
.complete
);
1008 for (i
= 0; i
< param
->sglen
; i
++) {
1011 urb
[i
]->dev
= udev
;
1012 if (urb
[i
]->setup_packet
)
1013 usb_buffer_free (udev
, sizeof (struct usb_ctrlrequest
),
1014 urb
[i
]->setup_packet
,
1015 urb
[i
]->setup_dma
);
1016 simple_free_urb (urb
[i
]);
1019 return context
.status
;
1024 /*-------------------------------------------------------------------------*/
1026 static void unlink1_callback (struct urb
*urb
, struct pt_regs
*regs
)
1028 int status
= urb
->status
;
1030 // we "know" -EPIPE (stall) never happens
1032 status
= usb_submit_urb (urb
, SLAB_ATOMIC
);
1034 urb
->status
= status
;
1035 complete ((struct completion
*) urb
->context
);
1039 static int unlink1 (struct usbtest_dev
*dev
, int pipe
, int size
, int async
)
1042 struct completion completion
;
1045 init_completion (&completion
);
1046 urb
= simple_alloc_urb (testdev_to_usbdev (dev
), pipe
, size
);
1049 urb
->context
= &completion
;
1050 urb
->complete
= unlink1_callback
;
1052 /* keep the endpoint busy. there are lots of hc/hcd-internal
1053 * states, and testing should get to all of them over time.
1055 * FIXME want additional tests for when endpoint is STALLing
1056 * due to errors, or is just NAKing requests.
1058 if ((retval
= usb_submit_urb (urb
, SLAB_KERNEL
)) != 0) {
1059 dev_dbg (&dev
->intf
->dev
, "submit fail %d\n", retval
);
1063 /* unlinking that should always work. variable delay tests more
1064 * hcd states and code paths, even with little other system load.
1066 msleep (jiffies
% (2 * INTERRUPT_RATE
));
1069 retval
= usb_unlink_urb (urb
);
1070 if (retval
== -EBUSY
|| retval
== -EIDRM
) {
1071 /* we can't unlink urbs while they're completing.
1072 * or if they've completed, and we haven't resubmitted.
1073 * "normal" drivers would prevent resubmission, but
1074 * since we're testing unlink paths, we can't.
1076 dev_dbg (&dev
->intf
->dev
, "unlink retry\n");
1081 if (!(retval
== 0 || retval
== -EINPROGRESS
)) {
1082 dev_dbg (&dev
->intf
->dev
, "unlink fail %d\n", retval
);
1086 wait_for_completion (&completion
);
1087 retval
= urb
->status
;
1088 simple_free_urb (urb
);
1091 return (retval
== -ECONNRESET
) ? 0 : retval
- 1000;
1093 return (retval
== -ENOENT
|| retval
== -EPERM
) ?
1097 static int unlink_simple (struct usbtest_dev
*dev
, int pipe
, int len
)
1101 /* test sync and async paths */
1102 retval
= unlink1 (dev
, pipe
, len
, 1);
1104 retval
= unlink1 (dev
, pipe
, len
, 0);
1108 /*-------------------------------------------------------------------------*/
1110 static int verify_not_halted (int ep
, struct urb
*urb
)
1115 /* shouldn't look or act halted */
1116 retval
= usb_get_status (urb
->dev
, USB_RECIP_ENDPOINT
, ep
, &status
);
1118 dbg ("ep %02x couldn't get no-halt status, %d", ep
, retval
);
1122 dbg ("ep %02x bogus status: %04x != 0", ep
, status
);
1125 retval
= simple_io (urb
, 1, 0, 0, __FUNCTION__
);
1131 static int verify_halted (int ep
, struct urb
*urb
)
1136 /* should look and act halted */
1137 retval
= usb_get_status (urb
->dev
, USB_RECIP_ENDPOINT
, ep
, &status
);
1139 dbg ("ep %02x couldn't get halt status, %d", ep
, retval
);
1143 dbg ("ep %02x bogus status: %04x != 1", ep
, status
);
1146 retval
= simple_io (urb
, 1, 0, -EPIPE
, __FUNCTION__
);
1147 if (retval
!= -EPIPE
)
1149 retval
= simple_io (urb
, 1, 0, -EPIPE
, "verify_still_halted");
1150 if (retval
!= -EPIPE
)
1155 static int test_halt (int ep
, struct urb
*urb
)
1159 /* shouldn't look or act halted now */
1160 retval
= verify_not_halted (ep
, urb
);
1164 /* set halt (protocol test only), verify it worked */
1165 retval
= usb_control_msg (urb
->dev
, usb_sndctrlpipe (urb
->dev
, 0),
1166 USB_REQ_SET_FEATURE
, USB_RECIP_ENDPOINT
,
1167 USB_ENDPOINT_HALT
, ep
,
1168 NULL
, 0, USB_CTRL_SET_TIMEOUT
);
1170 dbg ("ep %02x couldn't set halt, %d", ep
, retval
);
1173 retval
= verify_halted (ep
, urb
);
1177 /* clear halt (tests API + protocol), verify it worked */
1178 retval
= usb_clear_halt (urb
->dev
, urb
->pipe
);
1180 dbg ("ep %02x couldn't clear halt, %d", ep
, retval
);
1183 retval
= verify_not_halted (ep
, urb
);
1187 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1192 static int halt_simple (struct usbtest_dev
*dev
)
1198 urb
= simple_alloc_urb (testdev_to_usbdev (dev
), 0, 512);
1203 ep
= usb_pipeendpoint (dev
->in_pipe
) | USB_DIR_IN
;
1204 urb
->pipe
= dev
->in_pipe
;
1205 retval
= test_halt (ep
, urb
);
1210 if (dev
->out_pipe
) {
1211 ep
= usb_pipeendpoint (dev
->out_pipe
);
1212 urb
->pipe
= dev
->out_pipe
;
1213 retval
= test_halt (ep
, urb
);
1216 simple_free_urb (urb
);
1220 /*-------------------------------------------------------------------------*/
1222 /* Control OUT tests use the vendor control requests from Intel's
1223 * USB 2.0 compliance test device: write a buffer, read it back.
1225 * Intel's spec only _requires_ that it work for one packet, which
1226 * is pretty weak. Some HCDs place limits here; most devices will
1227 * need to be able to handle more than one OUT data packet. We'll
1228 * try whatever we're told to try.
1230 static int ctrl_out (struct usbtest_dev
*dev
,
1231 unsigned count
, unsigned length
, unsigned vary
)
1233 unsigned i
, j
, len
, retval
;
1236 struct usb_device
*udev
;
1238 if (length
< 1 || length
> 0xffff || vary
>= length
)
1241 buf
= kmalloc(length
, SLAB_KERNEL
);
1245 udev
= testdev_to_usbdev (dev
);
1249 /* NOTE: hardware might well act differently if we pushed it
1250 * with lots back-to-back queued requests.
1252 for (i
= 0; i
< count
; i
++) {
1253 /* write patterned data */
1254 for (j
= 0; j
< len
; j
++)
1256 retval
= usb_control_msg (udev
, usb_sndctrlpipe (udev
,0),
1257 0x5b, USB_DIR_OUT
|USB_TYPE_VENDOR
,
1258 0, 0, buf
, len
, USB_CTRL_SET_TIMEOUT
);
1259 if (retval
!= len
) {
1262 INFO(dev
, "ctrl_out, wlen %d (expected %d)\n",
1269 /* read it back -- assuming nothing intervened!! */
1270 retval
= usb_control_msg (udev
, usb_rcvctrlpipe (udev
,0),
1271 0x5c, USB_DIR_IN
|USB_TYPE_VENDOR
,
1272 0, 0, buf
, len
, USB_CTRL_GET_TIMEOUT
);
1273 if (retval
!= len
) {
1276 INFO(dev
, "ctrl_out, rlen %d (expected %d)\n",
1283 /* fail if we can't verify */
1284 for (j
= 0; j
< len
; j
++) {
1285 if (buf
[j
] != (u8
) (i
+ j
)) {
1286 INFO (dev
, "ctrl_out, byte %d is %d not %d\n",
1287 j
, buf
[j
], (u8
) i
+ j
);
1299 /* [real world] the "zero bytes IN" case isn't really used.
1300 * hardware can easily trip up in this wierd case, since its
1301 * status stage is IN, not OUT like other ep0in transfers.
1304 len
= realworld
? 1 : 0;
1308 INFO (dev
, "ctrl_out %s failed, code %d, count %d\n",
1315 /*-------------------------------------------------------------------------*/
1317 /* ISO tests ... mimics common usage
1318 * - buffer length is split into N packets (mostly maxpacket sized)
1319 * - multi-buffers according to sglen
1322 struct iso_context
{
1326 struct completion done
;
1327 unsigned long errors
;
1328 struct usbtest_dev
*dev
;
1331 static void iso_callback (struct urb
*urb
, struct pt_regs
*regs
)
1333 struct iso_context
*ctx
= urb
->context
;
1335 spin_lock(&ctx
->lock
);
1338 if (urb
->error_count
> 0)
1339 ctx
->errors
+= urb
->error_count
;
1341 if (urb
->status
== 0 && ctx
->count
> (ctx
->pending
- 1)) {
1342 int status
= usb_submit_urb (urb
, GFP_ATOMIC
);
1347 dev_dbg (&ctx
->dev
->intf
->dev
,
1348 "iso resubmit err %d\n",
1351 case -ENODEV
: /* disconnected */
1355 simple_free_urb (urb
);
1358 if (ctx
->pending
== 0) {
1360 dev_dbg (&ctx
->dev
->intf
->dev
,
1361 "iso test, %lu errors\n",
1363 complete (&ctx
->done
);
1366 spin_unlock(&ctx
->lock
);
1369 static struct urb
*iso_alloc_urb (
1370 struct usb_device
*udev
,
1372 struct usb_endpoint_descriptor
*desc
,
1377 unsigned i
, maxp
, packets
;
1379 if (bytes
< 0 || !desc
)
1381 maxp
= 0x7ff & le16_to_cpu(desc
->wMaxPacketSize
);
1382 maxp
*= 1 + (0x3 & (le16_to_cpu(desc
->wMaxPacketSize
) >> 11));
1383 packets
= (bytes
+ maxp
- 1) / maxp
;
1385 urb
= usb_alloc_urb (packets
, SLAB_KERNEL
);
1391 urb
->number_of_packets
= packets
;
1392 urb
->transfer_buffer_length
= bytes
;
1393 urb
->transfer_buffer
= usb_buffer_alloc (udev
, bytes
, SLAB_KERNEL
,
1394 &urb
->transfer_dma
);
1395 if (!urb
->transfer_buffer
) {
1399 memset (urb
->transfer_buffer
, 0, bytes
);
1400 for (i
= 0; i
< packets
; i
++) {
1401 /* here, only the last packet will be short */
1402 urb
->iso_frame_desc
[i
].length
= min ((unsigned) bytes
, maxp
);
1403 bytes
-= urb
->iso_frame_desc
[i
].length
;
1405 urb
->iso_frame_desc
[i
].offset
= maxp
* i
;
1408 urb
->complete
= iso_callback
;
1409 // urb->context = SET BY CALLER
1410 urb
->interval
= 1 << (desc
->bInterval
- 1);
1411 urb
->transfer_flags
= URB_ISO_ASAP
| URB_NO_TRANSFER_DMA_MAP
;
1416 test_iso_queue (struct usbtest_dev
*dev
, struct usbtest_param
*param
,
1417 int pipe
, struct usb_endpoint_descriptor
*desc
)
1419 struct iso_context context
;
1420 struct usb_device
*udev
;
1422 unsigned long packets
= 0;
1424 struct urb
*urbs
[10]; /* FIXME no limit */
1426 if (param
->sglen
> 10)
1429 context
.count
= param
->iterations
* param
->sglen
;
1430 context
.pending
= param
->sglen
;
1433 init_completion (&context
.done
);
1434 spin_lock_init (&context
.lock
);
1436 memset (urbs
, 0, sizeof urbs
);
1437 udev
= testdev_to_usbdev (dev
);
1438 dev_dbg (&dev
->intf
->dev
,
1439 "... iso period %d %sframes, wMaxPacket %04x\n",
1440 1 << (desc
->bInterval
- 1),
1441 (udev
->speed
== USB_SPEED_HIGH
) ? "micro" : "",
1442 le16_to_cpu(desc
->wMaxPacketSize
));
1444 for (i
= 0; i
< param
->sglen
; i
++) {
1445 urbs
[i
] = iso_alloc_urb (udev
, pipe
, desc
,
1451 packets
+= urbs
[i
]->number_of_packets
;
1452 urbs
[i
]->context
= &context
;
1454 packets
*= param
->iterations
;
1455 dev_dbg (&dev
->intf
->dev
,
1456 "... total %lu msec (%lu packets)\n",
1457 (packets
* (1 << (desc
->bInterval
- 1)))
1458 / ((udev
->speed
== USB_SPEED_HIGH
) ? 8 : 1),
1461 spin_lock_irq (&context
.lock
);
1462 for (i
= 0; i
< param
->sglen
; i
++) {
1463 status
= usb_submit_urb (urbs
[i
], SLAB_ATOMIC
);
1465 ERROR (dev
, "submit iso[%d], error %d\n", i
, status
);
1467 spin_unlock_irq (&context
.lock
);
1471 simple_free_urb (urbs
[i
]);
1475 spin_unlock_irq (&context
.lock
);
1477 wait_for_completion (&context
.done
);
1481 for (i
= 0; i
< param
->sglen
; i
++) {
1483 simple_free_urb (urbs
[i
]);
1488 /*-------------------------------------------------------------------------*/
1490 /* We only have this one interface to user space, through usbfs.
1491 * User mode code can scan usbfs to find N different devices (maybe on
1492 * different busses) to use when testing, and allocate one thread per
1493 * test. So discovery is simplified, and we have no device naming issues.
1495 * Don't use these only as stress/load tests. Use them along with with
1496 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
1497 * video capture, and so on. Run different tests at different times, in
1498 * different sequences. Nothing here should interact with other devices,
1499 * except indirectly by consuming USB bandwidth and CPU resources for test
1500 * threads and request completion. But the only way to know that for sure
1501 * is to test when HC queues are in use by many devices.
1505 usbtest_ioctl (struct usb_interface
*intf
, unsigned int code
, void *buf
)
1507 struct usbtest_dev
*dev
= usb_get_intfdata (intf
);
1508 struct usb_device
*udev
= testdev_to_usbdev (dev
);
1509 struct usbtest_param
*param
= buf
;
1510 int retval
= -EOPNOTSUPP
;
1512 struct scatterlist
*sg
;
1513 struct usb_sg_request req
;
1514 struct timeval start
;
1517 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
1519 if (code
!= USBTEST_REQUEST
)
1522 if (param
->iterations
<= 0 || param
->length
< 0
1523 || param
->sglen
< 0 || param
->vary
< 0)
1526 if (down_interruptible (&dev
->sem
))
1527 return -ERESTARTSYS
;
1529 if (intf
->dev
.power
.power_state
.event
!= PM_EVENT_ON
) {
1531 return -EHOSTUNREACH
;
1534 /* some devices, like ez-usb default devices, need a non-default
1535 * altsetting to have any active endpoints. some tests change
1536 * altsettings; force a default so most tests don't need to check.
1538 if (dev
->info
->alt
>= 0) {
1541 if (intf
->altsetting
->desc
.bInterfaceNumber
) {
1545 res
= set_altsetting (dev
, dev
->info
->alt
);
1547 dev_err (&intf
->dev
,
1548 "set altsetting to %d failed, %d\n",
1549 dev
->info
->alt
, res
);
1556 * Just a bunch of test cases that every HCD is expected to handle.
1558 * Some may need specific firmware, though it'd be good to have
1559 * one firmware image to handle all the test cases.
1561 * FIXME add more tests! cancel requests, verify the data, control
1562 * queueing, concurrent read+write threads, and so on.
1564 do_gettimeofday (&start
);
1565 switch (param
->test_num
) {
1568 dev_dbg (&intf
->dev
, "TEST 0: NOP\n");
1572 /* Simple non-queued bulk I/O tests */
1574 if (dev
->out_pipe
== 0)
1576 dev_dbg (&intf
->dev
,
1577 "TEST 1: write %d bytes %u times\n",
1578 param
->length
, param
->iterations
);
1579 urb
= simple_alloc_urb (udev
, dev
->out_pipe
, param
->length
);
1584 // FIRMWARE: bulk sink (maybe accepts short writes)
1585 retval
= simple_io (urb
, param
->iterations
, 0, 0, "test1");
1586 simple_free_urb (urb
);
1589 if (dev
->in_pipe
== 0)
1591 dev_dbg (&intf
->dev
,
1592 "TEST 2: read %d bytes %u times\n",
1593 param
->length
, param
->iterations
);
1594 urb
= simple_alloc_urb (udev
, dev
->in_pipe
, param
->length
);
1599 // FIRMWARE: bulk source (maybe generates short writes)
1600 retval
= simple_io (urb
, param
->iterations
, 0, 0, "test2");
1601 simple_free_urb (urb
);
1604 if (dev
->out_pipe
== 0 || param
->vary
== 0)
1606 dev_dbg (&intf
->dev
,
1607 "TEST 3: write/%d 0..%d bytes %u times\n",
1608 param
->vary
, param
->length
, param
->iterations
);
1609 urb
= simple_alloc_urb (udev
, dev
->out_pipe
, param
->length
);
1614 // FIRMWARE: bulk sink (maybe accepts short writes)
1615 retval
= simple_io (urb
, param
->iterations
, param
->vary
,
1617 simple_free_urb (urb
);
1620 if (dev
->in_pipe
== 0 || param
->vary
== 0)
1622 dev_dbg (&intf
->dev
,
1623 "TEST 4: read/%d 0..%d bytes %u times\n",
1624 param
->vary
, param
->length
, param
->iterations
);
1625 urb
= simple_alloc_urb (udev
, dev
->in_pipe
, param
->length
);
1630 // FIRMWARE: bulk source (maybe generates short writes)
1631 retval
= simple_io (urb
, param
->iterations
, param
->vary
,
1633 simple_free_urb (urb
);
1636 /* Queued bulk I/O tests */
1638 if (dev
->out_pipe
== 0 || param
->sglen
== 0)
1640 dev_dbg (&intf
->dev
,
1641 "TEST 5: write %d sglists %d entries of %d bytes\n",
1643 param
->sglen
, param
->length
);
1644 sg
= alloc_sglist (param
->sglen
, param
->length
, 0);
1649 // FIRMWARE: bulk sink (maybe accepts short writes)
1650 retval
= perform_sglist (udev
, param
->iterations
, dev
->out_pipe
,
1651 &req
, sg
, param
->sglen
);
1652 free_sglist (sg
, param
->sglen
);
1656 if (dev
->in_pipe
== 0 || param
->sglen
== 0)
1658 dev_dbg (&intf
->dev
,
1659 "TEST 6: read %d sglists %d entries of %d bytes\n",
1661 param
->sglen
, param
->length
);
1662 sg
= alloc_sglist (param
->sglen
, param
->length
, 0);
1667 // FIRMWARE: bulk source (maybe generates short writes)
1668 retval
= perform_sglist (udev
, param
->iterations
, dev
->in_pipe
,
1669 &req
, sg
, param
->sglen
);
1670 free_sglist (sg
, param
->sglen
);
1673 if (dev
->out_pipe
== 0 || param
->sglen
== 0 || param
->vary
== 0)
1675 dev_dbg (&intf
->dev
,
1676 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
1677 param
->vary
, param
->iterations
,
1678 param
->sglen
, param
->length
);
1679 sg
= alloc_sglist (param
->sglen
, param
->length
, param
->vary
);
1684 // FIRMWARE: bulk sink (maybe accepts short writes)
1685 retval
= perform_sglist (udev
, param
->iterations
, dev
->out_pipe
,
1686 &req
, sg
, param
->sglen
);
1687 free_sglist (sg
, param
->sglen
);
1690 if (dev
->in_pipe
== 0 || param
->sglen
== 0 || param
->vary
== 0)
1692 dev_dbg (&intf
->dev
,
1693 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
1694 param
->vary
, param
->iterations
,
1695 param
->sglen
, param
->length
);
1696 sg
= alloc_sglist (param
->sglen
, param
->length
, param
->vary
);
1701 // FIRMWARE: bulk source (maybe generates short writes)
1702 retval
= perform_sglist (udev
, param
->iterations
, dev
->in_pipe
,
1703 &req
, sg
, param
->sglen
);
1704 free_sglist (sg
, param
->sglen
);
1707 /* non-queued sanity tests for control (chapter 9 subset) */
1710 dev_dbg (&intf
->dev
,
1711 "TEST 9: ch9 (subset) control tests, %d times\n",
1713 for (i
= param
->iterations
; retval
== 0 && i
--; /* NOP */)
1714 retval
= ch9_postconfig (dev
);
1716 dbg ("ch9 subset failed, iterations left %d", i
);
1719 /* queued control messaging */
1721 if (param
->sglen
== 0)
1724 dev_dbg (&intf
->dev
,
1725 "TEST 10: queue %d control calls, %d times\n",
1728 retval
= test_ctrl_queue (dev
, param
);
1731 /* simple non-queued unlinks (ring with one urb) */
1733 if (dev
->in_pipe
== 0 || !param
->length
)
1736 dev_dbg (&intf
->dev
, "TEST 11: unlink %d reads of %d\n",
1737 param
->iterations
, param
->length
);
1738 for (i
= param
->iterations
; retval
== 0 && i
--; /* NOP */)
1739 retval
= unlink_simple (dev
, dev
->in_pipe
,
1742 dev_dbg (&intf
->dev
, "unlink reads failed %d, "
1743 "iterations left %d\n", retval
, i
);
1746 if (dev
->out_pipe
== 0 || !param
->length
)
1749 dev_dbg (&intf
->dev
, "TEST 12: unlink %d writes of %d\n",
1750 param
->iterations
, param
->length
);
1751 for (i
= param
->iterations
; retval
== 0 && i
--; /* NOP */)
1752 retval
= unlink_simple (dev
, dev
->out_pipe
,
1755 dev_dbg (&intf
->dev
, "unlink writes failed %d, "
1756 "iterations left %d\n", retval
, i
);
1761 if (dev
->out_pipe
== 0 && dev
->in_pipe
== 0)
1764 dev_dbg (&intf
->dev
, "TEST 13: set/clear %d halts\n",
1766 for (i
= param
->iterations
; retval
== 0 && i
--; /* NOP */)
1767 retval
= halt_simple (dev
);
1770 DBG (dev
, "halts failed, iterations left %d\n", i
);
1773 /* control write tests */
1775 if (!dev
->info
->ctrl_out
)
1777 dev_dbg (&intf
->dev
, "TEST 14: %d ep0out, %d..%d vary %d\n",
1779 realworld
? 1 : 0, param
->length
,
1781 retval
= ctrl_out (dev
, param
->iterations
,
1782 param
->length
, param
->vary
);
1785 /* iso write tests */
1787 if (dev
->out_iso_pipe
== 0 || param
->sglen
== 0)
1789 dev_dbg (&intf
->dev
,
1790 "TEST 15: write %d iso, %d entries of %d bytes\n",
1792 param
->sglen
, param
->length
);
1793 // FIRMWARE: iso sink
1794 retval
= test_iso_queue (dev
, param
,
1795 dev
->out_iso_pipe
, dev
->iso_out
);
1798 /* iso read tests */
1800 if (dev
->in_iso_pipe
== 0 || param
->sglen
== 0)
1802 dev_dbg (&intf
->dev
,
1803 "TEST 16: read %d iso, %d entries of %d bytes\n",
1805 param
->sglen
, param
->length
);
1806 // FIRMWARE: iso source
1807 retval
= test_iso_queue (dev
, param
,
1808 dev
->in_iso_pipe
, dev
->iso_in
);
1811 // FIXME unlink from queue (ring with N urbs)
1813 // FIXME scatterlist cancel (needs helper thread)
1816 do_gettimeofday (¶m
->duration
);
1817 param
->duration
.tv_sec
-= start
.tv_sec
;
1818 param
->duration
.tv_usec
-= start
.tv_usec
;
1819 if (param
->duration
.tv_usec
< 0) {
1820 param
->duration
.tv_usec
+= 1000 * 1000;
1821 param
->duration
.tv_sec
-= 1;
1827 /*-------------------------------------------------------------------------*/
1829 static unsigned force_interrupt
= 0;
1830 module_param (force_interrupt
, uint
, 0);
1831 MODULE_PARM_DESC (force_interrupt
, "0 = test default; else interrupt");
1834 static unsigned short vendor
;
1835 module_param(vendor
, ushort
, 0);
1836 MODULE_PARM_DESC (vendor
, "vendor code (from usb-if)");
1838 static unsigned short product
;
1839 module_param(product
, ushort
, 0);
1840 MODULE_PARM_DESC (product
, "product code (from vendor)");
1844 usbtest_probe (struct usb_interface
*intf
, const struct usb_device_id
*id
)
1846 struct usb_device
*udev
;
1847 struct usbtest_dev
*dev
;
1848 struct usbtest_info
*info
;
1849 char *rtest
, *wtest
;
1850 char *irtest
, *iwtest
;
1852 udev
= interface_to_usbdev (intf
);
1855 /* specify devices by module parameters? */
1856 if (id
->match_flags
== 0) {
1857 /* vendor match required, product match optional */
1858 if (!vendor
|| le16_to_cpu(udev
->descriptor
.idVendor
) != (u16
)vendor
)
1860 if (product
&& le16_to_cpu(udev
->descriptor
.idProduct
) != (u16
)product
)
1862 dbg ("matched module params, vend=0x%04x prod=0x%04x",
1863 le16_to_cpu(udev
->descriptor
.idVendor
),
1864 le16_to_cpu(udev
->descriptor
.idProduct
));
1868 dev
= kmalloc (sizeof *dev
, SLAB_KERNEL
);
1871 memset (dev
, 0, sizeof *dev
);
1872 info
= (struct usbtest_info
*) id
->driver_info
;
1874 init_MUTEX (&dev
->sem
);
1878 /* cacheline-aligned scratch for i/o */
1879 if ((dev
->buf
= kmalloc (TBUF_SIZE
, SLAB_KERNEL
)) == NULL
) {
1884 /* NOTE this doesn't yet test the handful of difference that are
1885 * visible with high speed interrupts: bigger maxpacket (1K) and
1886 * "high bandwidth" modes (up to 3 packets/uframe).
1889 irtest
= iwtest
= "";
1890 if (force_interrupt
|| udev
->speed
== USB_SPEED_LOW
) {
1892 dev
->in_pipe
= usb_rcvintpipe (udev
, info
->ep_in
);
1896 dev
->out_pipe
= usb_sndintpipe (udev
, info
->ep_out
);
1897 wtest
= " intr-out";
1900 if (info
->autoconf
) {
1903 status
= get_endpoints (dev
, intf
);
1905 dbg ("couldn't get endpoints, %d\n", status
);
1908 /* may find bulk or ISO pipes */
1911 dev
->in_pipe
= usb_rcvbulkpipe (udev
,
1914 dev
->out_pipe
= usb_sndbulkpipe (udev
,
1920 wtest
= " bulk-out";
1921 if (dev
->in_iso_pipe
)
1923 if (dev
->out_iso_pipe
)
1924 iwtest
= " iso-out";
1927 usb_set_intfdata (intf
, dev
);
1928 dev_info (&intf
->dev
, "%s\n", info
->name
);
1929 dev_info (&intf
->dev
, "%s speed {control%s%s%s%s%s} tests%s\n",
1931 switch (udev
->speed
) {
1932 case USB_SPEED_LOW
: tmp
= "low"; break;
1933 case USB_SPEED_FULL
: tmp
= "full"; break;
1934 case USB_SPEED_HIGH
: tmp
= "high"; break;
1935 default: tmp
= "unknown"; break;
1937 info
->ctrl_out
? " in/out" : "",
1940 info
->alt
>= 0 ? " (+alt)" : "");
1944 static int usbtest_suspend (struct usb_interface
*intf
, pm_message_t message
)
1949 static int usbtest_resume (struct usb_interface
*intf
)
1955 static void usbtest_disconnect (struct usb_interface
*intf
)
1957 struct usbtest_dev
*dev
= usb_get_intfdata (intf
);
1961 usb_set_intfdata (intf
, NULL
);
1962 dev_dbg (&intf
->dev
, "disconnect\n");
1966 /* Basic testing only needs a device that can source or sink bulk traffic.
1967 * Any device can test control transfers (default with GENERIC binding).
1969 * Several entries work with the default EP0 implementation that's built
1970 * into EZ-USB chips. There's a default vendor ID which can be overridden
1971 * by (very) small config EEPROMS, but otherwise all these devices act
1972 * identically until firmware is loaded: only EP0 works. It turns out
1973 * to be easy to make other endpoints work, without modifying that EP0
1974 * behavior. For now, we expect that kind of firmware.
1977 /* an21xx or fx versions of ez-usb */
1978 static struct usbtest_info ez1_info
= {
1979 .name
= "EZ-USB device",
1985 /* fx2 version of ez-usb */
1986 static struct usbtest_info ez2_info
= {
1987 .name
= "FX2 device",
1993 /* ezusb family device with dedicated usb test firmware,
1995 static struct usbtest_info fw_info
= {
1996 .name
= "usb test device",
2000 .autoconf
= 1, // iso and ctrl_out need autoconf
2002 .iso
= 1, // iso_ep's are #8 in/out
2005 /* peripheral running Linux and 'zero.c' test firmware, or
2006 * its user-mode cousin. different versions of this use
2007 * different hardware with the same vendor/product codes.
2008 * host side MUST rely on the endpoint descriptors.
2010 static struct usbtest_info gz_info
= {
2011 .name
= "Linux gadget zero",
2017 static struct usbtest_info um_info
= {
2018 .name
= "Linux user mode test driver",
2023 static struct usbtest_info um2_info
= {
2024 .name
= "Linux user mode ISO test driver",
2031 /* this is a nice source of high speed bulk data;
2032 * uses an FX2, with firmware provided in the device
2034 static struct usbtest_info ibot2_info
= {
2035 .name
= "iBOT2 webcam",
2042 /* we can use any device to test control traffic */
2043 static struct usbtest_info generic_info
= {
2044 .name
= "Generic USB device",
2049 // FIXME remove this
2050 static struct usbtest_info hact_info
= {
2058 static struct usb_device_id id_table
[] = {
2060 { USB_DEVICE (0x0547, 0x1002),
2061 .driver_info
= (unsigned long) &hact_info
,
2064 /*-------------------------------------------------------------*/
2066 /* EZ-USB devices which download firmware to replace (or in our
2067 * case augment) the default device implementation.
2070 /* generic EZ-USB FX controller */
2071 { USB_DEVICE (0x0547, 0x2235),
2072 .driver_info
= (unsigned long) &ez1_info
,
2075 /* CY3671 development board with EZ-USB FX */
2076 { USB_DEVICE (0x0547, 0x0080),
2077 .driver_info
= (unsigned long) &ez1_info
,
2080 /* generic EZ-USB FX2 controller (or development board) */
2081 { USB_DEVICE (0x04b4, 0x8613),
2082 .driver_info
= (unsigned long) &ez2_info
,
2085 /* re-enumerated usb test device firmware */
2086 { USB_DEVICE (0xfff0, 0xfff0),
2087 .driver_info
= (unsigned long) &fw_info
,
2090 /* "Gadget Zero" firmware runs under Linux */
2091 { USB_DEVICE (0x0525, 0xa4a0),
2092 .driver_info
= (unsigned long) &gz_info
,
2095 /* so does a user-mode variant */
2096 { USB_DEVICE (0x0525, 0xa4a4),
2097 .driver_info
= (unsigned long) &um_info
,
2100 /* ... and a user-mode variant that talks iso */
2101 { USB_DEVICE (0x0525, 0xa4a3),
2102 .driver_info
= (unsigned long) &um2_info
,
2106 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2107 // this does not coexist with the real Keyspan 19qi driver!
2108 { USB_DEVICE (0x06cd, 0x010b),
2109 .driver_info
= (unsigned long) &ez1_info
,
2113 /*-------------------------------------------------------------*/
2116 /* iBOT2 makes a nice source of high speed bulk-in data */
2117 // this does not coexist with a real iBOT2 driver!
2118 { USB_DEVICE (0x0b62, 0x0059),
2119 .driver_info
= (unsigned long) &ibot2_info
,
2123 /*-------------------------------------------------------------*/
2126 /* module params can specify devices to use for control tests */
2127 { .driver_info
= (unsigned long) &generic_info
, },
2130 /*-------------------------------------------------------------*/
2134 MODULE_DEVICE_TABLE (usb
, id_table
);
2136 static struct usb_driver usbtest_driver
= {
2137 .owner
= THIS_MODULE
,
2139 .id_table
= id_table
,
2140 .probe
= usbtest_probe
,
2141 .ioctl
= usbtest_ioctl
,
2142 .disconnect
= usbtest_disconnect
,
2143 .suspend
= usbtest_suspend
,
2144 .resume
= usbtest_resume
,
2147 /*-------------------------------------------------------------------------*/
2149 static int __init
usbtest_init (void)
2153 dbg ("params: vend=0x%04x prod=0x%04x", vendor
, product
);
2155 return usb_register (&usbtest_driver
);
2157 module_init (usbtest_init
);
2159 static void __exit
usbtest_exit (void)
2161 usb_deregister (&usbtest_driver
);
2163 module_exit (usbtest_exit
);
2165 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver");
2166 MODULE_LICENSE ("GPL");