1 #include <linux/kernel.h>
2 #include <linux/errno.h>
3 #include <linux/init.h>
4 #include <linux/slab.h>
6 #include <linux/module.h>
7 #include <linux/moduleparam.h>
8 #include <linux/scatterlist.h>
9 #include <linux/mutex.h>
10 #include <linux/timer.h>
11 #include <linux/usb.h>
13 #define SIMPLE_IO_TIMEOUT 10000 /* in milliseconds */
15 /*-------------------------------------------------------------------------*/
17 static int override_alt
= -1;
18 module_param_named(alt
, override_alt
, int, 0644);
19 MODULE_PARM_DESC(alt
, ">= 0 to override altsetting selection");
20 static void complicated_callback(struct urb
*urb
);
22 /*-------------------------------------------------------------------------*/
24 /* FIXME make these public somewhere; usbdevfs.h? */
26 /* Parameter for usbtest driver. */
27 struct usbtest_param_32
{
29 __u32 test_num
; /* 0..(TEST_CASES-1) */
41 * Compat parameter to the usbtest driver.
42 * This supports older user space binaries compiled with 64 bit compiler.
44 struct usbtest_param_64
{
46 __u32 test_num
; /* 0..(TEST_CASES-1) */
57 /* IOCTL interface to the driver. */
58 #define USBTEST_REQUEST_32 _IOWR('U', 100, struct usbtest_param_32)
59 /* COMPAT IOCTL interface to the driver. */
60 #define USBTEST_REQUEST_64 _IOWR('U', 100, struct usbtest_param_64)
62 /*-------------------------------------------------------------------------*/
64 #define GENERIC /* let probe() bind using module params */
66 /* Some devices that can be used for testing will have "real" drivers.
67 * Entries for those need to be enabled here by hand, after disabling
70 //#define IBOT2 /* grab iBOT2 webcams */
71 //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */
73 /*-------------------------------------------------------------------------*/
77 u8 ep_in
; /* bulk/intr source */
78 u8 ep_out
; /* bulk/intr sink */
81 unsigned iso
:1; /* try iso in/out */
82 unsigned intr
:1; /* try interrupt in/out */
86 /* this is accessed only through usbfs ioctl calls.
87 * one ioctl to issue a test ... one lock per device.
88 * tests create other threads if they need them.
89 * urbs and buffers are allocated dynamically,
90 * and data generated deterministically.
93 struct usb_interface
*intf
;
94 struct usbtest_info
*info
;
101 struct usb_endpoint_descriptor
*iso_in
, *iso_out
;
102 struct usb_endpoint_descriptor
*int_in
, *int_out
;
105 #define TBUF_SIZE 256
109 static struct usb_device
*testdev_to_usbdev(struct usbtest_dev
*test
)
111 return interface_to_usbdev(test
->intf
);
114 /* set up all urbs so they can be used with either bulk or interrupt */
115 #define INTERRUPT_RATE 1 /* msec/transfer */
117 #define ERROR(tdev, fmt, args...) \
118 dev_err(&(tdev)->intf->dev , fmt , ## args)
119 #define WARNING(tdev, fmt, args...) \
120 dev_warn(&(tdev)->intf->dev , fmt , ## args)
122 #define GUARD_BYTE 0xA5
123 #define MAX_SGLEN 128
125 /*-------------------------------------------------------------------------*/
128 get_endpoints(struct usbtest_dev
*dev
, struct usb_interface
*intf
)
131 struct usb_host_interface
*alt
;
132 struct usb_host_endpoint
*in
, *out
;
133 struct usb_host_endpoint
*iso_in
, *iso_out
;
134 struct usb_host_endpoint
*int_in
, *int_out
;
135 struct usb_device
*udev
;
137 for (tmp
= 0; tmp
< intf
->num_altsetting
; tmp
++) {
141 iso_in
= iso_out
= NULL
;
142 int_in
= int_out
= NULL
;
143 alt
= intf
->altsetting
+ tmp
;
145 if (override_alt
>= 0 &&
146 override_alt
!= alt
->desc
.bAlternateSetting
)
149 /* take the first altsetting with in-bulk + out-bulk;
150 * ignore other endpoints and altsettings.
152 for (ep
= 0; ep
< alt
->desc
.bNumEndpoints
; ep
++) {
153 struct usb_host_endpoint
*e
;
155 e
= alt
->endpoint
+ ep
;
156 switch (usb_endpoint_type(&e
->desc
)) {
157 case USB_ENDPOINT_XFER_BULK
:
159 case USB_ENDPOINT_XFER_INT
:
162 case USB_ENDPOINT_XFER_ISOC
:
169 if (usb_endpoint_dir_in(&e
->desc
)) {
178 if (usb_endpoint_dir_in(&e
->desc
)) {
187 if (usb_endpoint_dir_in(&e
->desc
)) {
195 if ((in
&& out
) || iso_in
|| iso_out
|| int_in
|| int_out
)
201 udev
= testdev_to_usbdev(dev
);
202 dev
->info
->alt
= alt
->desc
.bAlternateSetting
;
203 if (alt
->desc
.bAlternateSetting
!= 0) {
204 tmp
= usb_set_interface(udev
,
205 alt
->desc
.bInterfaceNumber
,
206 alt
->desc
.bAlternateSetting
);
212 dev
->in_pipe
= usb_rcvbulkpipe(udev
,
213 in
->desc
.bEndpointAddress
& USB_ENDPOINT_NUMBER_MASK
);
214 dev
->out_pipe
= usb_sndbulkpipe(udev
,
215 out
->desc
.bEndpointAddress
& USB_ENDPOINT_NUMBER_MASK
);
218 dev
->iso_in
= &iso_in
->desc
;
219 dev
->in_iso_pipe
= usb_rcvisocpipe(udev
,
220 iso_in
->desc
.bEndpointAddress
221 & USB_ENDPOINT_NUMBER_MASK
);
225 dev
->iso_out
= &iso_out
->desc
;
226 dev
->out_iso_pipe
= usb_sndisocpipe(udev
,
227 iso_out
->desc
.bEndpointAddress
228 & USB_ENDPOINT_NUMBER_MASK
);
232 dev
->int_in
= &int_in
->desc
;
233 dev
->in_int_pipe
= usb_rcvintpipe(udev
,
234 int_in
->desc
.bEndpointAddress
235 & USB_ENDPOINT_NUMBER_MASK
);
239 dev
->int_out
= &int_out
->desc
;
240 dev
->out_int_pipe
= usb_sndintpipe(udev
,
241 int_out
->desc
.bEndpointAddress
242 & USB_ENDPOINT_NUMBER_MASK
);
247 /*-------------------------------------------------------------------------*/
249 /* Support for testing basic non-queued I/O streams.
251 * These just package urbs as requests that can be easily canceled.
252 * Each urb's data buffer is dynamically allocated; callers can fill
253 * them with non-zero test data (or test for it) when appropriate.
256 static void simple_callback(struct urb
*urb
)
258 complete(urb
->context
);
261 static struct urb
*usbtest_alloc_urb(
262 struct usb_device
*udev
,
265 unsigned transfer_flags
,
268 usb_complete_t complete_fn
)
272 urb
= usb_alloc_urb(0, GFP_KERNEL
);
277 usb_fill_int_urb(urb
, udev
, pipe
, NULL
, bytes
, complete_fn
,
280 usb_fill_bulk_urb(urb
, udev
, pipe
, NULL
, bytes
, complete_fn
,
283 urb
->interval
= (udev
->speed
== USB_SPEED_HIGH
)
284 ? (INTERRUPT_RATE
<< 3)
286 urb
->transfer_flags
= transfer_flags
;
287 if (usb_pipein(pipe
))
288 urb
->transfer_flags
|= URB_SHORT_NOT_OK
;
290 if ((bytes
+ offset
) == 0)
293 if (urb
->transfer_flags
& URB_NO_TRANSFER_DMA_MAP
)
294 urb
->transfer_buffer
= usb_alloc_coherent(udev
, bytes
+ offset
,
295 GFP_KERNEL
, &urb
->transfer_dma
);
297 urb
->transfer_buffer
= kmalloc(bytes
+ offset
, GFP_KERNEL
);
299 if (!urb
->transfer_buffer
) {
304 /* To test unaligned transfers add an offset and fill the
305 unused memory with a guard value */
307 memset(urb
->transfer_buffer
, GUARD_BYTE
, offset
);
308 urb
->transfer_buffer
+= offset
;
309 if (urb
->transfer_flags
& URB_NO_TRANSFER_DMA_MAP
)
310 urb
->transfer_dma
+= offset
;
313 /* For inbound transfers use guard byte so that test fails if
314 data not correctly copied */
315 memset(urb
->transfer_buffer
,
316 usb_pipein(urb
->pipe
) ? GUARD_BYTE
: 0,
321 static struct urb
*simple_alloc_urb(
322 struct usb_device
*udev
,
327 return usbtest_alloc_urb(udev
, pipe
, bytes
, URB_NO_TRANSFER_DMA_MAP
, 0,
328 bInterval
, simple_callback
);
331 static struct urb
*complicated_alloc_urb(
332 struct usb_device
*udev
,
337 return usbtest_alloc_urb(udev
, pipe
, bytes
, URB_NO_TRANSFER_DMA_MAP
, 0,
338 bInterval
, complicated_callback
);
341 static unsigned pattern
;
342 static unsigned mod_pattern
;
343 module_param_named(pattern
, mod_pattern
, uint
, S_IRUGO
| S_IWUSR
);
344 MODULE_PARM_DESC(mod_pattern
, "i/o pattern (0 == zeroes)");
346 static unsigned get_maxpacket(struct usb_device
*udev
, int pipe
)
348 struct usb_host_endpoint
*ep
;
350 ep
= usb_pipe_endpoint(udev
, pipe
);
351 return le16_to_cpup(&ep
->desc
.wMaxPacketSize
);
354 static void simple_fill_buf(struct urb
*urb
)
357 u8
*buf
= urb
->transfer_buffer
;
358 unsigned len
= urb
->transfer_buffer_length
;
368 maxpacket
= get_maxpacket(urb
->dev
, urb
->pipe
);
369 for (i
= 0; i
< len
; i
++)
370 *buf
++ = (u8
) ((i
% maxpacket
) % 63);
375 static inline unsigned long buffer_offset(void *buf
)
377 return (unsigned long)buf
& (ARCH_KMALLOC_MINALIGN
- 1);
380 static int check_guard_bytes(struct usbtest_dev
*tdev
, struct urb
*urb
)
382 u8
*buf
= urb
->transfer_buffer
;
383 u8
*guard
= buf
- buffer_offset(buf
);
386 for (i
= 0; guard
< buf
; i
++, guard
++) {
387 if (*guard
!= GUARD_BYTE
) {
388 ERROR(tdev
, "guard byte[%d] %d (not %d)\n",
389 i
, *guard
, GUARD_BYTE
);
396 static int simple_check_buf(struct usbtest_dev
*tdev
, struct urb
*urb
)
400 u8
*buf
= urb
->transfer_buffer
;
401 unsigned len
= urb
->actual_length
;
402 unsigned maxpacket
= get_maxpacket(urb
->dev
, urb
->pipe
);
404 int ret
= check_guard_bytes(tdev
, urb
);
408 for (i
= 0; i
< len
; i
++, buf
++) {
410 /* all-zeroes has no synchronization issues */
414 /* mod63 stays in sync with short-terminated transfers,
415 * or otherwise when host and gadget agree on how large
416 * each usb transfer request should be. resync is done
417 * with set_interface or set_config.
420 expected
= (i
% maxpacket
) % 63;
422 /* always fail unsupported patterns */
427 if (*buf
== expected
)
429 ERROR(tdev
, "buf[%d] = %d (not %d)\n", i
, *buf
, expected
);
435 static void simple_free_urb(struct urb
*urb
)
437 unsigned long offset
= buffer_offset(urb
->transfer_buffer
);
439 if (urb
->transfer_flags
& URB_NO_TRANSFER_DMA_MAP
)
442 urb
->transfer_buffer_length
+ offset
,
443 urb
->transfer_buffer
- offset
,
444 urb
->transfer_dma
- offset
);
446 kfree(urb
->transfer_buffer
- offset
);
450 static int simple_io(
451 struct usbtest_dev
*tdev
,
459 struct usb_device
*udev
= urb
->dev
;
460 int max
= urb
->transfer_buffer_length
;
461 struct completion completion
;
463 unsigned long expire
;
465 urb
->context
= &completion
;
466 while (retval
== 0 && iterations
-- > 0) {
467 init_completion(&completion
);
468 if (usb_pipeout(urb
->pipe
)) {
469 simple_fill_buf(urb
);
470 urb
->transfer_flags
|= URB_ZERO_PACKET
;
472 retval
= usb_submit_urb(urb
, GFP_KERNEL
);
476 expire
= msecs_to_jiffies(SIMPLE_IO_TIMEOUT
);
477 if (!wait_for_completion_timeout(&completion
, expire
)) {
479 retval
= (urb
->status
== -ENOENT
?
480 -ETIMEDOUT
: urb
->status
);
482 retval
= urb
->status
;
486 if (retval
== 0 && usb_pipein(urb
->pipe
))
487 retval
= simple_check_buf(tdev
, urb
);
490 int len
= urb
->transfer_buffer_length
;
495 len
= (vary
< max
) ? vary
: max
;
496 urb
->transfer_buffer_length
= len
;
499 /* FIXME if endpoint halted, clear halt (and log) */
501 urb
->transfer_buffer_length
= max
;
503 if (expected
!= retval
)
505 "%s failed, iterations left %d, status %d (not %d)\n",
506 label
, iterations
, retval
, expected
);
511 /*-------------------------------------------------------------------------*/
513 /* We use scatterlist primitives to test queued I/O.
514 * Yes, this also tests the scatterlist primitives.
517 static void free_sglist(struct scatterlist
*sg
, int nents
)
523 for (i
= 0; i
< nents
; i
++) {
524 if (!sg_page(&sg
[i
]))
526 kfree(sg_virt(&sg
[i
]));
531 static struct scatterlist
*
532 alloc_sglist(int nents
, int max
, int vary
, struct usbtest_dev
*dev
, int pipe
)
534 struct scatterlist
*sg
;
535 unsigned int n_size
= 0;
539 get_maxpacket(interface_to_usbdev(dev
->intf
), pipe
);
544 sg
= kmalloc_array(nents
, sizeof(*sg
), GFP_KERNEL
);
547 sg_init_table(sg
, nents
);
549 for (i
= 0; i
< nents
; i
++) {
553 buf
= kzalloc(size
, GFP_KERNEL
);
559 /* kmalloc pages are always physically contiguous! */
560 sg_set_buf(&sg
[i
], buf
, size
);
567 for (j
= 0; j
< size
; j
++)
568 *buf
++ = (u8
) (((j
+ n_size
) % maxpacket
) % 63);
577 size
= (vary
< max
) ? vary
: max
;
584 static void sg_timeout(unsigned long _req
)
586 struct usb_sg_request
*req
= (struct usb_sg_request
*) _req
;
591 static int perform_sglist(
592 struct usbtest_dev
*tdev
,
595 struct usb_sg_request
*req
,
596 struct scatterlist
*sg
,
600 struct usb_device
*udev
= testdev_to_usbdev(tdev
);
602 struct timer_list sg_timer
;
604 setup_timer_on_stack(&sg_timer
, sg_timeout
, (unsigned long) req
);
606 while (retval
== 0 && iterations
-- > 0) {
607 retval
= usb_sg_init(req
, udev
, pipe
,
608 (udev
->speed
== USB_SPEED_HIGH
)
609 ? (INTERRUPT_RATE
<< 3)
611 sg
, nents
, 0, GFP_KERNEL
);
615 mod_timer(&sg_timer
, jiffies
+
616 msecs_to_jiffies(SIMPLE_IO_TIMEOUT
));
618 if (!del_timer_sync(&sg_timer
))
621 retval
= req
->status
;
623 /* FIXME check resulting data pattern */
625 /* FIXME if endpoint halted, clear halt (and log) */
628 /* FIXME for unlink or fault handling tests, don't report
629 * failure if retval is as we expected ...
632 ERROR(tdev
, "perform_sglist failed, "
633 "iterations left %d, status %d\n",
639 /*-------------------------------------------------------------------------*/
641 /* unqueued control message testing
643 * there's a nice set of device functional requirements in chapter 9 of the
644 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
645 * special test firmware.
647 * we know the device is configured (or suspended) by the time it's visible
648 * through usbfs. we can't change that, so we won't test enumeration (which
649 * worked 'well enough' to get here, this time), power management (ditto),
650 * or remote wakeup (which needs human interaction).
653 static unsigned realworld
= 1;
654 module_param(realworld
, uint
, 0);
655 MODULE_PARM_DESC(realworld
, "clear to demand stricter spec compliance");
657 static int get_altsetting(struct usbtest_dev
*dev
)
659 struct usb_interface
*iface
= dev
->intf
;
660 struct usb_device
*udev
= interface_to_usbdev(iface
);
663 retval
= usb_control_msg(udev
, usb_rcvctrlpipe(udev
, 0),
664 USB_REQ_GET_INTERFACE
, USB_DIR_IN
|USB_RECIP_INTERFACE
,
665 0, iface
->altsetting
[0].desc
.bInterfaceNumber
,
666 dev
->buf
, 1, USB_CTRL_GET_TIMEOUT
);
678 static int set_altsetting(struct usbtest_dev
*dev
, int alternate
)
680 struct usb_interface
*iface
= dev
->intf
;
681 struct usb_device
*udev
;
683 if (alternate
< 0 || alternate
>= 256)
686 udev
= interface_to_usbdev(iface
);
687 return usb_set_interface(udev
,
688 iface
->altsetting
[0].desc
.bInterfaceNumber
,
692 static int is_good_config(struct usbtest_dev
*tdev
, int len
)
694 struct usb_config_descriptor
*config
;
696 if (len
< sizeof(*config
))
698 config
= (struct usb_config_descriptor
*) tdev
->buf
;
700 switch (config
->bDescriptorType
) {
702 case USB_DT_OTHER_SPEED_CONFIG
:
703 if (config
->bLength
!= 9) {
704 ERROR(tdev
, "bogus config descriptor length\n");
707 /* this bit 'must be 1' but often isn't */
708 if (!realworld
&& !(config
->bmAttributes
& 0x80)) {
709 ERROR(tdev
, "high bit of config attributes not set\n");
712 if (config
->bmAttributes
& 0x1f) { /* reserved == 0 */
713 ERROR(tdev
, "reserved config bits set\n");
721 if (le16_to_cpu(config
->wTotalLength
) == len
) /* read it all */
723 if (le16_to_cpu(config
->wTotalLength
) >= TBUF_SIZE
) /* max partial read */
725 ERROR(tdev
, "bogus config descriptor read size\n");
729 static int is_good_ext(struct usbtest_dev
*tdev
, u8
*buf
)
731 struct usb_ext_cap_descriptor
*ext
;
734 ext
= (struct usb_ext_cap_descriptor
*) buf
;
736 if (ext
->bLength
!= USB_DT_USB_EXT_CAP_SIZE
) {
737 ERROR(tdev
, "bogus usb 2.0 extension descriptor length\n");
741 attr
= le32_to_cpu(ext
->bmAttributes
);
742 /* bits[1:15] is used and others are reserved */
743 if (attr
& ~0xfffe) { /* reserved == 0 */
744 ERROR(tdev
, "reserved bits set\n");
751 static int is_good_ss_cap(struct usbtest_dev
*tdev
, u8
*buf
)
753 struct usb_ss_cap_descriptor
*ss
;
755 ss
= (struct usb_ss_cap_descriptor
*) buf
;
757 if (ss
->bLength
!= USB_DT_USB_SS_CAP_SIZE
) {
758 ERROR(tdev
, "bogus superspeed device capability descriptor length\n");
763 * only bit[1] of bmAttributes is used for LTM and others are
766 if (ss
->bmAttributes
& ~0x02) { /* reserved == 0 */
767 ERROR(tdev
, "reserved bits set in bmAttributes\n");
771 /* bits[0:3] of wSpeedSupported is used and others are reserved */
772 if (le16_to_cpu(ss
->wSpeedSupported
) & ~0x0f) { /* reserved == 0 */
773 ERROR(tdev
, "reserved bits set in wSpeedSupported\n");
780 static int is_good_con_id(struct usbtest_dev
*tdev
, u8
*buf
)
782 struct usb_ss_container_id_descriptor
*con_id
;
784 con_id
= (struct usb_ss_container_id_descriptor
*) buf
;
786 if (con_id
->bLength
!= USB_DT_USB_SS_CONTN_ID_SIZE
) {
787 ERROR(tdev
, "bogus container id descriptor length\n");
791 if (con_id
->bReserved
) { /* reserved == 0 */
792 ERROR(tdev
, "reserved bits set\n");
799 /* sanity test for standard requests working with usb_control_mesg() and some
800 * of the utility functions which use it.
802 * this doesn't test how endpoint halts behave or data toggles get set, since
803 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
804 * halt or toggle). toggle testing is impractical without support from hcds.
806 * this avoids failing devices linux would normally work with, by not testing
807 * config/altsetting operations for devices that only support their defaults.
808 * such devices rarely support those needless operations.
810 * NOTE that since this is a sanity test, it's not examining boundary cases
811 * to see if usbcore, hcd, and device all behave right. such testing would
812 * involve varied read sizes and other operation sequences.
814 static int ch9_postconfig(struct usbtest_dev
*dev
)
816 struct usb_interface
*iface
= dev
->intf
;
817 struct usb_device
*udev
= interface_to_usbdev(iface
);
820 /* [9.2.3] if there's more than one altsetting, we need to be able to
821 * set and get each one. mostly trusts the descriptors from usbcore.
823 for (i
= 0; i
< iface
->num_altsetting
; i
++) {
825 /* 9.2.3 constrains the range here */
826 alt
= iface
->altsetting
[i
].desc
.bAlternateSetting
;
827 if (alt
< 0 || alt
>= iface
->num_altsetting
) {
829 "invalid alt [%d].bAltSetting = %d\n",
833 /* [real world] get/set unimplemented if there's only one */
834 if (realworld
&& iface
->num_altsetting
== 1)
837 /* [9.4.10] set_interface */
838 retval
= set_altsetting(dev
, alt
);
840 dev_err(&iface
->dev
, "can't set_interface = %d, %d\n",
845 /* [9.4.4] get_interface always works */
846 retval
= get_altsetting(dev
);
848 dev_err(&iface
->dev
, "get alt should be %d, was %d\n",
850 return (retval
< 0) ? retval
: -EDOM
;
855 /* [real world] get_config unimplemented if there's only one */
856 if (!realworld
|| udev
->descriptor
.bNumConfigurations
!= 1) {
857 int expected
= udev
->actconfig
->desc
.bConfigurationValue
;
859 /* [9.4.2] get_configuration always works
860 * ... although some cheap devices (like one TI Hub I've got)
861 * won't return config descriptors except before set_config.
863 retval
= usb_control_msg(udev
, usb_rcvctrlpipe(udev
, 0),
864 USB_REQ_GET_CONFIGURATION
,
865 USB_DIR_IN
| USB_RECIP_DEVICE
,
866 0, 0, dev
->buf
, 1, USB_CTRL_GET_TIMEOUT
);
867 if (retval
!= 1 || dev
->buf
[0] != expected
) {
868 dev_err(&iface
->dev
, "get config --> %d %d (1 %d)\n",
869 retval
, dev
->buf
[0], expected
);
870 return (retval
< 0) ? retval
: -EDOM
;
874 /* there's always [9.4.3] a device descriptor [9.6.1] */
875 retval
= usb_get_descriptor(udev
, USB_DT_DEVICE
, 0,
876 dev
->buf
, sizeof(udev
->descriptor
));
877 if (retval
!= sizeof(udev
->descriptor
)) {
878 dev_err(&iface
->dev
, "dev descriptor --> %d\n", retval
);
879 return (retval
< 0) ? retval
: -EDOM
;
883 * there's always [9.4.3] a bos device descriptor [9.6.2] in USB
886 if (le16_to_cpu(udev
->descriptor
.bcdUSB
) >= 0x0210) {
887 struct usb_bos_descriptor
*bos
= NULL
;
888 struct usb_dev_cap_header
*header
= NULL
;
889 unsigned total
, num
, length
;
892 retval
= usb_get_descriptor(udev
, USB_DT_BOS
, 0, dev
->buf
,
893 sizeof(*udev
->bos
->desc
));
894 if (retval
!= sizeof(*udev
->bos
->desc
)) {
895 dev_err(&iface
->dev
, "bos descriptor --> %d\n", retval
);
896 return (retval
< 0) ? retval
: -EDOM
;
899 bos
= (struct usb_bos_descriptor
*)dev
->buf
;
900 total
= le16_to_cpu(bos
->wTotalLength
);
901 num
= bos
->bNumDeviceCaps
;
903 if (total
> TBUF_SIZE
)
907 * get generic device-level capability descriptors [9.6.2]
910 retval
= usb_get_descriptor(udev
, USB_DT_BOS
, 0, dev
->buf
,
912 if (retval
!= total
) {
913 dev_err(&iface
->dev
, "bos descriptor set --> %d\n",
915 return (retval
< 0) ? retval
: -EDOM
;
918 length
= sizeof(*udev
->bos
->desc
);
920 for (i
= 0; i
< num
; i
++) {
922 if (buf
+ sizeof(struct usb_dev_cap_header
) >
926 header
= (struct usb_dev_cap_header
*)buf
;
927 length
= header
->bLength
;
929 if (header
->bDescriptorType
!=
930 USB_DT_DEVICE_CAPABILITY
) {
931 dev_warn(&udev
->dev
, "not device capability descriptor, skip\n");
935 switch (header
->bDevCapabilityType
) {
936 case USB_CAP_TYPE_EXT
:
937 if (buf
+ USB_DT_USB_EXT_CAP_SIZE
>
939 !is_good_ext(dev
, buf
)) {
940 dev_err(&iface
->dev
, "bogus usb 2.0 extension descriptor\n");
944 case USB_SS_CAP_TYPE
:
945 if (buf
+ USB_DT_USB_SS_CAP_SIZE
>
947 !is_good_ss_cap(dev
, buf
)) {
948 dev_err(&iface
->dev
, "bogus superspeed device capability descriptor\n");
952 case CONTAINER_ID_TYPE
:
953 if (buf
+ USB_DT_USB_SS_CONTN_ID_SIZE
>
955 !is_good_con_id(dev
, buf
)) {
956 dev_err(&iface
->dev
, "bogus container id descriptor\n");
966 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
967 for (i
= 0; i
< udev
->descriptor
.bNumConfigurations
; i
++) {
968 retval
= usb_get_descriptor(udev
, USB_DT_CONFIG
, i
,
969 dev
->buf
, TBUF_SIZE
);
970 if (!is_good_config(dev
, retval
)) {
972 "config [%d] descriptor --> %d\n",
974 return (retval
< 0) ? retval
: -EDOM
;
977 /* FIXME cross-checking udev->config[i] to make sure usbcore
978 * parsed it right (etc) would be good testing paranoia
982 /* and sometimes [9.2.6.6] speed dependent descriptors */
983 if (le16_to_cpu(udev
->descriptor
.bcdUSB
) == 0x0200) {
984 struct usb_qualifier_descriptor
*d
= NULL
;
986 /* device qualifier [9.6.2] */
987 retval
= usb_get_descriptor(udev
,
988 USB_DT_DEVICE_QUALIFIER
, 0, dev
->buf
,
989 sizeof(struct usb_qualifier_descriptor
));
990 if (retval
== -EPIPE
) {
991 if (udev
->speed
== USB_SPEED_HIGH
) {
993 "hs dev qualifier --> %d\n",
995 return (retval
< 0) ? retval
: -EDOM
;
997 /* usb2.0 but not high-speed capable; fine */
998 } else if (retval
!= sizeof(struct usb_qualifier_descriptor
)) {
999 dev_err(&iface
->dev
, "dev qualifier --> %d\n", retval
);
1000 return (retval
< 0) ? retval
: -EDOM
;
1002 d
= (struct usb_qualifier_descriptor
*) dev
->buf
;
1004 /* might not have [9.6.2] any other-speed configs [9.6.4] */
1006 unsigned max
= d
->bNumConfigurations
;
1007 for (i
= 0; i
< max
; i
++) {
1008 retval
= usb_get_descriptor(udev
,
1009 USB_DT_OTHER_SPEED_CONFIG
, i
,
1010 dev
->buf
, TBUF_SIZE
);
1011 if (!is_good_config(dev
, retval
)) {
1012 dev_err(&iface
->dev
,
1013 "other speed config --> %d\n",
1015 return (retval
< 0) ? retval
: -EDOM
;
1020 /* FIXME fetch strings from at least the device descriptor */
1022 /* [9.4.5] get_status always works */
1023 retval
= usb_get_status(udev
, USB_RECIP_DEVICE
, 0, dev
->buf
);
1025 dev_err(&iface
->dev
, "get dev status --> %d\n", retval
);
1029 /* FIXME configuration.bmAttributes says if we could try to set/clear
1030 * the device's remote wakeup feature ... if we can, test that here
1033 retval
= usb_get_status(udev
, USB_RECIP_INTERFACE
,
1034 iface
->altsetting
[0].desc
.bInterfaceNumber
, dev
->buf
);
1036 dev_err(&iface
->dev
, "get interface status --> %d\n", retval
);
1039 /* FIXME get status for each endpoint in the interface */
1044 /*-------------------------------------------------------------------------*/
1046 /* use ch9 requests to test whether:
1047 * (a) queues work for control, keeping N subtests queued and
1048 * active (auto-resubmit) for M loops through the queue.
1049 * (b) protocol stalls (control-only) will autorecover.
1050 * it's not like bulk/intr; no halt clearing.
1051 * (c) short control reads are reported and handled.
1052 * (d) queues are always processed in-order
1057 struct usbtest_dev
*dev
;
1058 struct completion complete
;
1063 struct usbtest_param_32
*param
;
1067 #define NUM_SUBCASES 16 /* how many test subcases here? */
1070 struct usb_ctrlrequest setup
;
1075 static void ctrl_complete(struct urb
*urb
)
1077 struct ctrl_ctx
*ctx
= urb
->context
;
1078 struct usb_ctrlrequest
*reqp
;
1079 struct subcase
*subcase
;
1080 int status
= urb
->status
;
1082 reqp
= (struct usb_ctrlrequest
*)urb
->setup_packet
;
1083 subcase
= container_of(reqp
, struct subcase
, setup
);
1085 spin_lock(&ctx
->lock
);
1089 /* queue must transfer and complete in fifo order, unless
1090 * usb_unlink_urb() is used to unlink something not at the
1091 * physical queue head (not tested).
1093 if (subcase
->number
> 0) {
1094 if ((subcase
->number
- ctx
->last
) != 1) {
1096 "subcase %d completed out of order, last %d\n",
1097 subcase
->number
, ctx
->last
);
1099 ctx
->last
= subcase
->number
;
1103 ctx
->last
= subcase
->number
;
1105 /* succeed or fault in only one way? */
1106 if (status
== subcase
->expected
)
1109 /* async unlink for cleanup? */
1110 else if (status
!= -ECONNRESET
) {
1112 /* some faults are allowed, not required */
1113 if (subcase
->expected
> 0 && (
1114 ((status
== -subcase
->expected
/* happened */
1115 || status
== 0)))) /* didn't */
1117 /* sometimes more than one fault is allowed */
1118 else if (subcase
->number
== 12 && status
== -EPIPE
)
1121 ERROR(ctx
->dev
, "subtest %d error, status %d\n",
1122 subcase
->number
, status
);
1125 /* unexpected status codes mean errors; ideally, in hardware */
1128 if (ctx
->status
== 0) {
1131 ctx
->status
= status
;
1132 ERROR(ctx
->dev
, "control queue %02x.%02x, err %d, "
1133 "%d left, subcase %d, len %d/%d\n",
1134 reqp
->bRequestType
, reqp
->bRequest
,
1135 status
, ctx
->count
, subcase
->number
,
1137 urb
->transfer_buffer_length
);
1139 /* FIXME this "unlink everything" exit route should
1140 * be a separate test case.
1143 /* unlink whatever's still pending */
1144 for (i
= 1; i
< ctx
->param
->sglen
; i
++) {
1145 struct urb
*u
= ctx
->urb
[
1146 (i
+ subcase
->number
)
1147 % ctx
->param
->sglen
];
1149 if (u
== urb
|| !u
->dev
)
1151 spin_unlock(&ctx
->lock
);
1152 status
= usb_unlink_urb(u
);
1153 spin_lock(&ctx
->lock
);
1160 ERROR(ctx
->dev
, "urb unlink --> %d\n",
1164 status
= ctx
->status
;
1168 /* resubmit if we need to, else mark this as done */
1169 if ((status
== 0) && (ctx
->pending
< ctx
->count
)) {
1170 status
= usb_submit_urb(urb
, GFP_ATOMIC
);
1173 "can't resubmit ctrl %02x.%02x, err %d\n",
1174 reqp
->bRequestType
, reqp
->bRequest
, status
);
1181 /* signal completion when nothing's queued */
1182 if (ctx
->pending
== 0)
1183 complete(&ctx
->complete
);
1184 spin_unlock(&ctx
->lock
);
1188 test_ctrl_queue(struct usbtest_dev
*dev
, struct usbtest_param_32
*param
)
1190 struct usb_device
*udev
= testdev_to_usbdev(dev
);
1192 struct ctrl_ctx context
;
1195 if (param
->sglen
== 0 || param
->iterations
> UINT_MAX
/ param
->sglen
)
1198 spin_lock_init(&context
.lock
);
1200 init_completion(&context
.complete
);
1201 context
.count
= param
->sglen
* param
->iterations
;
1202 context
.pending
= 0;
1203 context
.status
= -ENOMEM
;
1204 context
.param
= param
;
1207 /* allocate and init the urbs we'll queue.
1208 * as with bulk/intr sglists, sglen is the queue depth; it also
1209 * controls which subtests run (more tests than sglen) or rerun.
1211 urb
= kcalloc(param
->sglen
, sizeof(struct urb
*), GFP_KERNEL
);
1214 for (i
= 0; i
< param
->sglen
; i
++) {
1215 int pipe
= usb_rcvctrlpipe(udev
, 0);
1218 struct usb_ctrlrequest req
;
1219 struct subcase
*reqp
;
1221 /* sign of this variable means:
1222 * -: tested code must return this (negative) error code
1223 * +: tested code may return this (negative too) error code
1227 /* requests here are mostly expected to succeed on any
1228 * device, but some are chosen to trigger protocol stalls
1231 memset(&req
, 0, sizeof(req
));
1232 req
.bRequest
= USB_REQ_GET_DESCRIPTOR
;
1233 req
.bRequestType
= USB_DIR_IN
|USB_RECIP_DEVICE
;
1235 switch (i
% NUM_SUBCASES
) {
1236 case 0: /* get device descriptor */
1237 req
.wValue
= cpu_to_le16(USB_DT_DEVICE
<< 8);
1238 len
= sizeof(struct usb_device_descriptor
);
1240 case 1: /* get first config descriptor (only) */
1241 req
.wValue
= cpu_to_le16((USB_DT_CONFIG
<< 8) | 0);
1242 len
= sizeof(struct usb_config_descriptor
);
1244 case 2: /* get altsetting (OFTEN STALLS) */
1245 req
.bRequest
= USB_REQ_GET_INTERFACE
;
1246 req
.bRequestType
= USB_DIR_IN
|USB_RECIP_INTERFACE
;
1247 /* index = 0 means first interface */
1251 case 3: /* get interface status */
1252 req
.bRequest
= USB_REQ_GET_STATUS
;
1253 req
.bRequestType
= USB_DIR_IN
|USB_RECIP_INTERFACE
;
1257 case 4: /* get device status */
1258 req
.bRequest
= USB_REQ_GET_STATUS
;
1259 req
.bRequestType
= USB_DIR_IN
|USB_RECIP_DEVICE
;
1262 case 5: /* get device qualifier (MAY STALL) */
1263 req
.wValue
= cpu_to_le16 (USB_DT_DEVICE_QUALIFIER
<< 8);
1264 len
= sizeof(struct usb_qualifier_descriptor
);
1265 if (udev
->speed
!= USB_SPEED_HIGH
)
1268 case 6: /* get first config descriptor, plus interface */
1269 req
.wValue
= cpu_to_le16((USB_DT_CONFIG
<< 8) | 0);
1270 len
= sizeof(struct usb_config_descriptor
);
1271 len
+= sizeof(struct usb_interface_descriptor
);
1273 case 7: /* get interface descriptor (ALWAYS STALLS) */
1274 req
.wValue
= cpu_to_le16 (USB_DT_INTERFACE
<< 8);
1275 /* interface == 0 */
1276 len
= sizeof(struct usb_interface_descriptor
);
1279 /* NOTE: two consecutive stalls in the queue here.
1280 * that tests fault recovery a bit more aggressively. */
1281 case 8: /* clear endpoint halt (MAY STALL) */
1282 req
.bRequest
= USB_REQ_CLEAR_FEATURE
;
1283 req
.bRequestType
= USB_RECIP_ENDPOINT
;
1284 /* wValue 0 == ep halt */
1285 /* wIndex 0 == ep0 (shouldn't halt!) */
1287 pipe
= usb_sndctrlpipe(udev
, 0);
1290 case 9: /* get endpoint status */
1291 req
.bRequest
= USB_REQ_GET_STATUS
;
1292 req
.bRequestType
= USB_DIR_IN
|USB_RECIP_ENDPOINT
;
1296 case 10: /* trigger short read (EREMOTEIO) */
1297 req
.wValue
= cpu_to_le16((USB_DT_CONFIG
<< 8) | 0);
1299 expected
= -EREMOTEIO
;
1301 /* NOTE: two consecutive _different_ faults in the queue. */
1302 case 11: /* get endpoint descriptor (ALWAYS STALLS) */
1303 req
.wValue
= cpu_to_le16(USB_DT_ENDPOINT
<< 8);
1305 len
= sizeof(struct usb_interface_descriptor
);
1308 /* NOTE: sometimes even a third fault in the queue! */
1309 case 12: /* get string 0 descriptor (MAY STALL) */
1310 req
.wValue
= cpu_to_le16(USB_DT_STRING
<< 8);
1311 /* string == 0, for language IDs */
1312 len
= sizeof(struct usb_interface_descriptor
);
1313 /* may succeed when > 4 languages */
1314 expected
= EREMOTEIO
; /* or EPIPE, if no strings */
1316 case 13: /* short read, resembling case 10 */
1317 req
.wValue
= cpu_to_le16((USB_DT_CONFIG
<< 8) | 0);
1318 /* last data packet "should" be DATA1, not DATA0 */
1319 if (udev
->speed
== USB_SPEED_SUPER
)
1322 len
= 1024 - udev
->descriptor
.bMaxPacketSize0
;
1323 expected
= -EREMOTEIO
;
1325 case 14: /* short read; try to fill the last packet */
1326 req
.wValue
= cpu_to_le16((USB_DT_DEVICE
<< 8) | 0);
1327 /* device descriptor size == 18 bytes */
1328 len
= udev
->descriptor
.bMaxPacketSize0
;
1329 if (udev
->speed
== USB_SPEED_SUPER
)
1339 expected
= -EREMOTEIO
;
1342 req
.wValue
= cpu_to_le16(USB_DT_BOS
<< 8);
1344 len
= le16_to_cpu(udev
->bos
->desc
->wTotalLength
);
1346 len
= sizeof(struct usb_bos_descriptor
);
1347 if (le16_to_cpu(udev
->descriptor
.bcdUSB
) < 0x0201)
1351 ERROR(dev
, "bogus number of ctrl queue testcases!\n");
1352 context
.status
= -EINVAL
;
1355 req
.wLength
= cpu_to_le16(len
);
1356 urb
[i
] = u
= simple_alloc_urb(udev
, pipe
, len
, 0);
1360 reqp
= kmalloc(sizeof(*reqp
), GFP_KERNEL
);
1364 reqp
->number
= i
% NUM_SUBCASES
;
1365 reqp
->expected
= expected
;
1366 u
->setup_packet
= (char *) &reqp
->setup
;
1368 u
->context
= &context
;
1369 u
->complete
= ctrl_complete
;
1372 /* queue the urbs */
1374 spin_lock_irq(&context
.lock
);
1375 for (i
= 0; i
< param
->sglen
; i
++) {
1376 context
.status
= usb_submit_urb(urb
[i
], GFP_ATOMIC
);
1377 if (context
.status
!= 0) {
1378 ERROR(dev
, "can't submit urb[%d], status %d\n",
1380 context
.count
= context
.pending
;
1385 spin_unlock_irq(&context
.lock
);
1387 /* FIXME set timer and time out; provide a disconnect hook */
1389 /* wait for the last one to complete */
1390 if (context
.pending
> 0)
1391 wait_for_completion(&context
.complete
);
1394 for (i
= 0; i
< param
->sglen
; i
++) {
1398 kfree(urb
[i
]->setup_packet
);
1399 simple_free_urb(urb
[i
]);
1402 return context
.status
;
1407 /*-------------------------------------------------------------------------*/
1409 static void unlink1_callback(struct urb
*urb
)
1411 int status
= urb
->status
;
1413 /* we "know" -EPIPE (stall) never happens */
1415 status
= usb_submit_urb(urb
, GFP_ATOMIC
);
1417 urb
->status
= status
;
1418 complete(urb
->context
);
1422 static int unlink1(struct usbtest_dev
*dev
, int pipe
, int size
, int async
)
1425 struct completion completion
;
1428 init_completion(&completion
);
1429 urb
= simple_alloc_urb(testdev_to_usbdev(dev
), pipe
, size
, 0);
1432 urb
->context
= &completion
;
1433 urb
->complete
= unlink1_callback
;
1435 if (usb_pipeout(urb
->pipe
)) {
1436 simple_fill_buf(urb
);
1437 urb
->transfer_flags
|= URB_ZERO_PACKET
;
1440 /* keep the endpoint busy. there are lots of hc/hcd-internal
1441 * states, and testing should get to all of them over time.
1443 * FIXME want additional tests for when endpoint is STALLing
1444 * due to errors, or is just NAKing requests.
1446 retval
= usb_submit_urb(urb
, GFP_KERNEL
);
1448 dev_err(&dev
->intf
->dev
, "submit fail %d\n", retval
);
1452 /* unlinking that should always work. variable delay tests more
1453 * hcd states and code paths, even with little other system load.
1455 msleep(jiffies
% (2 * INTERRUPT_RATE
));
1457 while (!completion_done(&completion
)) {
1458 retval
= usb_unlink_urb(urb
);
1460 if (retval
== 0 && usb_pipein(urb
->pipe
))
1461 retval
= simple_check_buf(dev
, urb
);
1466 /* we can't unlink urbs while they're completing
1467 * or if they've completed, and we haven't
1468 * resubmitted. "normal" drivers would prevent
1469 * resubmission, but since we're testing unlink
1472 ERROR(dev
, "unlink retry\n");
1479 dev_err(&dev
->intf
->dev
,
1480 "unlink fail %d\n", retval
);
1489 wait_for_completion(&completion
);
1490 retval
= urb
->status
;
1491 simple_free_urb(urb
);
1494 return (retval
== -ECONNRESET
) ? 0 : retval
- 1000;
1496 return (retval
== -ENOENT
|| retval
== -EPERM
) ?
1500 static int unlink_simple(struct usbtest_dev
*dev
, int pipe
, int len
)
1504 /* test sync and async paths */
1505 retval
= unlink1(dev
, pipe
, len
, 1);
1507 retval
= unlink1(dev
, pipe
, len
, 0);
1511 /*-------------------------------------------------------------------------*/
1514 struct completion complete
;
1521 static void unlink_queued_callback(struct urb
*urb
)
1523 int status
= urb
->status
;
1524 struct queued_ctx
*ctx
= urb
->context
;
1528 if (urb
== ctx
->urbs
[ctx
->num
- 4] || urb
== ctx
->urbs
[ctx
->num
- 2]) {
1529 if (status
== -ECONNRESET
)
1531 /* What error should we report if the URB completed normally? */
1534 ctx
->status
= status
;
1537 if (atomic_dec_and_test(&ctx
->pending
))
1538 complete(&ctx
->complete
);
1541 static int unlink_queued(struct usbtest_dev
*dev
, int pipe
, unsigned num
,
1544 struct queued_ctx ctx
;
1545 struct usb_device
*udev
= testdev_to_usbdev(dev
);
1549 int retval
= -ENOMEM
;
1551 init_completion(&ctx
.complete
);
1552 atomic_set(&ctx
.pending
, 1); /* One more than the actual value */
1556 buf
= usb_alloc_coherent(udev
, size
, GFP_KERNEL
, &buf_dma
);
1559 memset(buf
, 0, size
);
1561 /* Allocate and init the urbs we'll queue */
1562 ctx
.urbs
= kcalloc(num
, sizeof(struct urb
*), GFP_KERNEL
);
1565 for (i
= 0; i
< num
; i
++) {
1566 ctx
.urbs
[i
] = usb_alloc_urb(0, GFP_KERNEL
);
1569 usb_fill_bulk_urb(ctx
.urbs
[i
], udev
, pipe
, buf
, size
,
1570 unlink_queued_callback
, &ctx
);
1571 ctx
.urbs
[i
]->transfer_dma
= buf_dma
;
1572 ctx
.urbs
[i
]->transfer_flags
= URB_NO_TRANSFER_DMA_MAP
;
1574 if (usb_pipeout(ctx
.urbs
[i
]->pipe
)) {
1575 simple_fill_buf(ctx
.urbs
[i
]);
1576 ctx
.urbs
[i
]->transfer_flags
|= URB_ZERO_PACKET
;
1580 /* Submit all the URBs and then unlink URBs num - 4 and num - 2. */
1581 for (i
= 0; i
< num
; i
++) {
1582 atomic_inc(&ctx
.pending
);
1583 retval
= usb_submit_urb(ctx
.urbs
[i
], GFP_KERNEL
);
1585 dev_err(&dev
->intf
->dev
, "submit urbs[%d] fail %d\n",
1587 atomic_dec(&ctx
.pending
);
1588 ctx
.status
= retval
;
1593 usb_unlink_urb(ctx
.urbs
[num
- 4]);
1594 usb_unlink_urb(ctx
.urbs
[num
- 2]);
1597 usb_unlink_urb(ctx
.urbs
[i
]);
1600 if (atomic_dec_and_test(&ctx
.pending
)) /* The extra count */
1601 complete(&ctx
.complete
);
1602 wait_for_completion(&ctx
.complete
);
1603 retval
= ctx
.status
;
1606 for (i
= 0; i
< num
; i
++)
1607 usb_free_urb(ctx
.urbs
[i
]);
1610 usb_free_coherent(udev
, size
, buf
, buf_dma
);
1614 /*-------------------------------------------------------------------------*/
1616 static int verify_not_halted(struct usbtest_dev
*tdev
, int ep
, struct urb
*urb
)
1621 /* shouldn't look or act halted */
1622 retval
= usb_get_status(urb
->dev
, USB_RECIP_ENDPOINT
, ep
, &status
);
1624 ERROR(tdev
, "ep %02x couldn't get no-halt status, %d\n",
1629 ERROR(tdev
, "ep %02x bogus status: %04x != 0\n", ep
, status
);
1632 retval
= simple_io(tdev
, urb
, 1, 0, 0, __func__
);
1638 static int verify_halted(struct usbtest_dev
*tdev
, int ep
, struct urb
*urb
)
1643 /* should look and act halted */
1644 retval
= usb_get_status(urb
->dev
, USB_RECIP_ENDPOINT
, ep
, &status
);
1646 ERROR(tdev
, "ep %02x couldn't get halt status, %d\n",
1651 ERROR(tdev
, "ep %02x bogus status: %04x != 1\n", ep
, status
);
1654 retval
= simple_io(tdev
, urb
, 1, 0, -EPIPE
, __func__
);
1655 if (retval
!= -EPIPE
)
1657 retval
= simple_io(tdev
, urb
, 1, 0, -EPIPE
, "verify_still_halted");
1658 if (retval
!= -EPIPE
)
1663 static int test_halt(struct usbtest_dev
*tdev
, int ep
, struct urb
*urb
)
1667 /* shouldn't look or act halted now */
1668 retval
= verify_not_halted(tdev
, ep
, urb
);
1672 /* set halt (protocol test only), verify it worked */
1673 retval
= usb_control_msg(urb
->dev
, usb_sndctrlpipe(urb
->dev
, 0),
1674 USB_REQ_SET_FEATURE
, USB_RECIP_ENDPOINT
,
1675 USB_ENDPOINT_HALT
, ep
,
1676 NULL
, 0, USB_CTRL_SET_TIMEOUT
);
1678 ERROR(tdev
, "ep %02x couldn't set halt, %d\n", ep
, retval
);
1681 retval
= verify_halted(tdev
, ep
, urb
);
1685 /* clear halt anyways, else further tests will fail */
1686 ret
= usb_clear_halt(urb
->dev
, urb
->pipe
);
1688 ERROR(tdev
, "ep %02x couldn't clear halt, %d\n",
1694 /* clear halt (tests API + protocol), verify it worked */
1695 retval
= usb_clear_halt(urb
->dev
, urb
->pipe
);
1697 ERROR(tdev
, "ep %02x couldn't clear halt, %d\n", ep
, retval
);
1700 retval
= verify_not_halted(tdev
, ep
, urb
);
1704 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1709 static int halt_simple(struct usbtest_dev
*dev
)
1714 struct usb_device
*udev
= testdev_to_usbdev(dev
);
1716 if (udev
->speed
== USB_SPEED_SUPER
)
1717 urb
= simple_alloc_urb(udev
, 0, 1024, 0);
1719 urb
= simple_alloc_urb(udev
, 0, 512, 0);
1724 ep
= usb_pipeendpoint(dev
->in_pipe
) | USB_DIR_IN
;
1725 urb
->pipe
= dev
->in_pipe
;
1726 retval
= test_halt(dev
, ep
, urb
);
1731 if (dev
->out_pipe
) {
1732 ep
= usb_pipeendpoint(dev
->out_pipe
);
1733 urb
->pipe
= dev
->out_pipe
;
1734 retval
= test_halt(dev
, ep
, urb
);
1737 simple_free_urb(urb
);
1741 /*-------------------------------------------------------------------------*/
1743 /* Control OUT tests use the vendor control requests from Intel's
1744 * USB 2.0 compliance test device: write a buffer, read it back.
1746 * Intel's spec only _requires_ that it work for one packet, which
1747 * is pretty weak. Some HCDs place limits here; most devices will
1748 * need to be able to handle more than one OUT data packet. We'll
1749 * try whatever we're told to try.
1751 static int ctrl_out(struct usbtest_dev
*dev
,
1752 unsigned count
, unsigned length
, unsigned vary
, unsigned offset
)
1758 struct usb_device
*udev
;
1760 if (length
< 1 || length
> 0xffff || vary
>= length
)
1763 buf
= kmalloc(length
+ offset
, GFP_KERNEL
);
1768 udev
= testdev_to_usbdev(dev
);
1772 /* NOTE: hardware might well act differently if we pushed it
1773 * with lots back-to-back queued requests.
1775 for (i
= 0; i
< count
; i
++) {
1776 /* write patterned data */
1777 for (j
= 0; j
< len
; j
++)
1778 buf
[j
] = (u8
)(i
+ j
);
1779 retval
= usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0),
1780 0x5b, USB_DIR_OUT
|USB_TYPE_VENDOR
,
1781 0, 0, buf
, len
, USB_CTRL_SET_TIMEOUT
);
1782 if (retval
!= len
) {
1785 ERROR(dev
, "ctrl_out, wlen %d (expected %d)\n",
1792 /* read it back -- assuming nothing intervened!! */
1793 retval
= usb_control_msg(udev
, usb_rcvctrlpipe(udev
, 0),
1794 0x5c, USB_DIR_IN
|USB_TYPE_VENDOR
,
1795 0, 0, buf
, len
, USB_CTRL_GET_TIMEOUT
);
1796 if (retval
!= len
) {
1799 ERROR(dev
, "ctrl_out, rlen %d (expected %d)\n",
1806 /* fail if we can't verify */
1807 for (j
= 0; j
< len
; j
++) {
1808 if (buf
[j
] != (u8
)(i
+ j
)) {
1809 ERROR(dev
, "ctrl_out, byte %d is %d not %d\n",
1810 j
, buf
[j
], (u8
)(i
+ j
));
1822 /* [real world] the "zero bytes IN" case isn't really used.
1823 * hardware can easily trip up in this weird case, since its
1824 * status stage is IN, not OUT like other ep0in transfers.
1827 len
= realworld
? 1 : 0;
1831 ERROR(dev
, "ctrl_out %s failed, code %d, count %d\n",
1834 kfree(buf
- offset
);
1838 /*-------------------------------------------------------------------------*/
1840 /* ISO/BULK tests ... mimics common usage
1841 * - buffer length is split into N packets (mostly maxpacket sized)
1842 * - multi-buffers according to sglen
1845 struct transfer_context
{
1849 struct completion done
;
1851 unsigned long errors
;
1852 unsigned long packet_count
;
1853 struct usbtest_dev
*dev
;
1857 static void complicated_callback(struct urb
*urb
)
1859 struct transfer_context
*ctx
= urb
->context
;
1861 spin_lock(&ctx
->lock
);
1864 ctx
->packet_count
+= urb
->number_of_packets
;
1865 if (urb
->error_count
> 0)
1866 ctx
->errors
+= urb
->error_count
;
1867 else if (urb
->status
!= 0)
1868 ctx
->errors
+= (ctx
->is_iso
? urb
->number_of_packets
: 1);
1869 else if (urb
->actual_length
!= urb
->transfer_buffer_length
)
1871 else if (check_guard_bytes(ctx
->dev
, urb
) != 0)
1874 if (urb
->status
== 0 && ctx
->count
> (ctx
->pending
- 1)
1875 && !ctx
->submit_error
) {
1876 int status
= usb_submit_urb(urb
, GFP_ATOMIC
);
1881 dev_err(&ctx
->dev
->intf
->dev
,
1882 "resubmit err %d\n",
1885 case -ENODEV
: /* disconnected */
1886 case -ESHUTDOWN
: /* endpoint disabled */
1887 ctx
->submit_error
= 1;
1893 if (ctx
->pending
== 0) {
1895 dev_err(&ctx
->dev
->intf
->dev
,
1896 "during the test, %lu errors out of %lu\n",
1897 ctx
->errors
, ctx
->packet_count
);
1898 complete(&ctx
->done
);
1901 spin_unlock(&ctx
->lock
);
1904 static struct urb
*iso_alloc_urb(
1905 struct usb_device
*udev
,
1907 struct usb_endpoint_descriptor
*desc
,
1913 unsigned i
, maxp
, packets
;
1915 if (bytes
< 0 || !desc
)
1917 maxp
= 0x7ff & usb_endpoint_maxp(desc
);
1918 maxp
*= 1 + (0x3 & (usb_endpoint_maxp(desc
) >> 11));
1919 packets
= DIV_ROUND_UP(bytes
, maxp
);
1921 urb
= usb_alloc_urb(packets
, GFP_KERNEL
);
1927 urb
->number_of_packets
= packets
;
1928 urb
->transfer_buffer_length
= bytes
;
1929 urb
->transfer_buffer
= usb_alloc_coherent(udev
, bytes
+ offset
,
1931 &urb
->transfer_dma
);
1932 if (!urb
->transfer_buffer
) {
1937 memset(urb
->transfer_buffer
, GUARD_BYTE
, offset
);
1938 urb
->transfer_buffer
+= offset
;
1939 urb
->transfer_dma
+= offset
;
1941 /* For inbound transfers use guard byte so that test fails if
1942 data not correctly copied */
1943 memset(urb
->transfer_buffer
,
1944 usb_pipein(urb
->pipe
) ? GUARD_BYTE
: 0,
1947 for (i
= 0; i
< packets
; i
++) {
1948 /* here, only the last packet will be short */
1949 urb
->iso_frame_desc
[i
].length
= min((unsigned) bytes
, maxp
);
1950 bytes
-= urb
->iso_frame_desc
[i
].length
;
1952 urb
->iso_frame_desc
[i
].offset
= maxp
* i
;
1955 urb
->complete
= complicated_callback
;
1956 /* urb->context = SET BY CALLER */
1957 urb
->interval
= 1 << (desc
->bInterval
- 1);
1958 urb
->transfer_flags
= URB_ISO_ASAP
| URB_NO_TRANSFER_DMA_MAP
;
1963 test_queue(struct usbtest_dev
*dev
, struct usbtest_param_32
*param
,
1964 int pipe
, struct usb_endpoint_descriptor
*desc
, unsigned offset
)
1966 struct transfer_context context
;
1967 struct usb_device
*udev
;
1969 unsigned long packets
= 0;
1971 struct urb
*urbs
[param
->sglen
];
1973 memset(&context
, 0, sizeof(context
));
1974 context
.count
= param
->iterations
* param
->sglen
;
1976 context
.is_iso
= !!desc
;
1977 init_completion(&context
.done
);
1978 spin_lock_init(&context
.lock
);
1980 udev
= testdev_to_usbdev(dev
);
1982 for (i
= 0; i
< param
->sglen
; i
++) {
1984 urbs
[i
] = iso_alloc_urb(udev
, pipe
, desc
,
1985 param
->length
, offset
);
1987 urbs
[i
] = complicated_alloc_urb(udev
, pipe
,
1994 packets
+= urbs
[i
]->number_of_packets
;
1995 urbs
[i
]->context
= &context
;
1997 packets
*= param
->iterations
;
1999 if (context
.is_iso
) {
2000 dev_info(&dev
->intf
->dev
,
2001 "iso period %d %sframes, wMaxPacket %d, transactions: %d\n",
2002 1 << (desc
->bInterval
- 1),
2003 (udev
->speed
== USB_SPEED_HIGH
) ? "micro" : "",
2004 usb_endpoint_maxp(desc
) & 0x7ff,
2005 1 + (0x3 & (usb_endpoint_maxp(desc
) >> 11)));
2007 dev_info(&dev
->intf
->dev
,
2008 "total %lu msec (%lu packets)\n",
2009 (packets
* (1 << (desc
->bInterval
- 1)))
2010 / ((udev
->speed
== USB_SPEED_HIGH
) ? 8 : 1),
2014 spin_lock_irq(&context
.lock
);
2015 for (i
= 0; i
< param
->sglen
; i
++) {
2017 status
= usb_submit_urb(urbs
[i
], GFP_ATOMIC
);
2019 ERROR(dev
, "submit iso[%d], error %d\n", i
, status
);
2021 spin_unlock_irq(&context
.lock
);
2025 simple_free_urb(urbs
[i
]);
2028 context
.submit_error
= 1;
2032 spin_unlock_irq(&context
.lock
);
2034 wait_for_completion(&context
.done
);
2036 for (i
= 0; i
< param
->sglen
; i
++) {
2038 simple_free_urb(urbs
[i
]);
2041 * Isochronous transfers are expected to fail sometimes. As an
2042 * arbitrary limit, we will report an error if any submissions
2043 * fail or if the transfer failure rate is > 10%.
2047 else if (context
.submit_error
)
2049 else if (context
.errors
>
2050 (context
.is_iso
? context
.packet_count
/ 10 : 0))
2055 for (i
= 0; i
< param
->sglen
; i
++) {
2057 simple_free_urb(urbs
[i
]);
2062 static int test_unaligned_bulk(
2063 struct usbtest_dev
*tdev
,
2067 unsigned transfer_flags
,
2071 struct urb
*urb
= usbtest_alloc_urb(testdev_to_usbdev(tdev
),
2072 pipe
, length
, transfer_flags
, 1, 0, simple_callback
);
2077 retval
= simple_io(tdev
, urb
, iterations
, 0, 0, label
);
2078 simple_free_urb(urb
);
2084 usbtest_do_ioctl(struct usb_interface
*intf
, struct usbtest_param_32
*param
)
2086 struct usbtest_dev
*dev
= usb_get_intfdata(intf
);
2087 struct usb_device
*udev
= testdev_to_usbdev(dev
);
2089 struct scatterlist
*sg
;
2090 struct usb_sg_request req
;
2092 int retval
= -EOPNOTSUPP
;
2094 if (param
->iterations
<= 0)
2097 * Just a bunch of test cases that every HCD is expected to handle.
2099 * Some may need specific firmware, though it'd be good to have
2100 * one firmware image to handle all the test cases.
2102 * FIXME add more tests! cancel requests, verify the data, control
2103 * queueing, concurrent read+write threads, and so on.
2105 switch (param
->test_num
) {
2108 dev_info(&intf
->dev
, "TEST 0: NOP\n");
2112 /* Simple non-queued bulk I/O tests */
2114 if (dev
->out_pipe
== 0)
2116 dev_info(&intf
->dev
,
2117 "TEST 1: write %d bytes %u times\n",
2118 param
->length
, param
->iterations
);
2119 urb
= simple_alloc_urb(udev
, dev
->out_pipe
, param
->length
, 0);
2124 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2125 retval
= simple_io(dev
, urb
, param
->iterations
, 0, 0, "test1");
2126 simple_free_urb(urb
);
2129 if (dev
->in_pipe
== 0)
2131 dev_info(&intf
->dev
,
2132 "TEST 2: read %d bytes %u times\n",
2133 param
->length
, param
->iterations
);
2134 urb
= simple_alloc_urb(udev
, dev
->in_pipe
, param
->length
, 0);
2139 /* FIRMWARE: bulk source (maybe generates short writes) */
2140 retval
= simple_io(dev
, urb
, param
->iterations
, 0, 0, "test2");
2141 simple_free_urb(urb
);
2144 if (dev
->out_pipe
== 0 || param
->vary
== 0)
2146 dev_info(&intf
->dev
,
2147 "TEST 3: write/%d 0..%d bytes %u times\n",
2148 param
->vary
, param
->length
, param
->iterations
);
2149 urb
= simple_alloc_urb(udev
, dev
->out_pipe
, param
->length
, 0);
2154 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2155 retval
= simple_io(dev
, urb
, param
->iterations
, param
->vary
,
2157 simple_free_urb(urb
);
2160 if (dev
->in_pipe
== 0 || param
->vary
== 0)
2162 dev_info(&intf
->dev
,
2163 "TEST 4: read/%d 0..%d bytes %u times\n",
2164 param
->vary
, param
->length
, param
->iterations
);
2165 urb
= simple_alloc_urb(udev
, dev
->in_pipe
, param
->length
, 0);
2170 /* FIRMWARE: bulk source (maybe generates short writes) */
2171 retval
= simple_io(dev
, urb
, param
->iterations
, param
->vary
,
2173 simple_free_urb(urb
);
2176 /* Queued bulk I/O tests */
2178 if (dev
->out_pipe
== 0 || param
->sglen
== 0)
2180 dev_info(&intf
->dev
,
2181 "TEST 5: write %d sglists %d entries of %d bytes\n",
2183 param
->sglen
, param
->length
);
2184 sg
= alloc_sglist(param
->sglen
, param
->length
,
2185 0, dev
, dev
->out_pipe
);
2190 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2191 retval
= perform_sglist(dev
, param
->iterations
, dev
->out_pipe
,
2192 &req
, sg
, param
->sglen
);
2193 free_sglist(sg
, param
->sglen
);
2197 if (dev
->in_pipe
== 0 || param
->sglen
== 0)
2199 dev_info(&intf
->dev
,
2200 "TEST 6: read %d sglists %d entries of %d bytes\n",
2202 param
->sglen
, param
->length
);
2203 sg
= alloc_sglist(param
->sglen
, param
->length
,
2204 0, dev
, dev
->in_pipe
);
2209 /* FIRMWARE: bulk source (maybe generates short writes) */
2210 retval
= perform_sglist(dev
, param
->iterations
, dev
->in_pipe
,
2211 &req
, sg
, param
->sglen
);
2212 free_sglist(sg
, param
->sglen
);
2215 if (dev
->out_pipe
== 0 || param
->sglen
== 0 || param
->vary
== 0)
2217 dev_info(&intf
->dev
,
2218 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
2219 param
->vary
, param
->iterations
,
2220 param
->sglen
, param
->length
);
2221 sg
= alloc_sglist(param
->sglen
, param
->length
,
2222 param
->vary
, dev
, dev
->out_pipe
);
2227 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2228 retval
= perform_sglist(dev
, param
->iterations
, dev
->out_pipe
,
2229 &req
, sg
, param
->sglen
);
2230 free_sglist(sg
, param
->sglen
);
2233 if (dev
->in_pipe
== 0 || param
->sglen
== 0 || param
->vary
== 0)
2235 dev_info(&intf
->dev
,
2236 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
2237 param
->vary
, param
->iterations
,
2238 param
->sglen
, param
->length
);
2239 sg
= alloc_sglist(param
->sglen
, param
->length
,
2240 param
->vary
, dev
, dev
->in_pipe
);
2245 /* FIRMWARE: bulk source (maybe generates short writes) */
2246 retval
= perform_sglist(dev
, param
->iterations
, dev
->in_pipe
,
2247 &req
, sg
, param
->sglen
);
2248 free_sglist(sg
, param
->sglen
);
2251 /* non-queued sanity tests for control (chapter 9 subset) */
2254 dev_info(&intf
->dev
,
2255 "TEST 9: ch9 (subset) control tests, %d times\n",
2257 for (i
= param
->iterations
; retval
== 0 && i
--; /* NOP */)
2258 retval
= ch9_postconfig(dev
);
2260 dev_err(&intf
->dev
, "ch9 subset failed, "
2261 "iterations left %d\n", i
);
2264 /* queued control messaging */
2267 dev_info(&intf
->dev
,
2268 "TEST 10: queue %d control calls, %d times\n",
2271 retval
= test_ctrl_queue(dev
, param
);
2274 /* simple non-queued unlinks (ring with one urb) */
2276 if (dev
->in_pipe
== 0 || !param
->length
)
2279 dev_info(&intf
->dev
, "TEST 11: unlink %d reads of %d\n",
2280 param
->iterations
, param
->length
);
2281 for (i
= param
->iterations
; retval
== 0 && i
--; /* NOP */)
2282 retval
= unlink_simple(dev
, dev
->in_pipe
,
2285 dev_err(&intf
->dev
, "unlink reads failed %d, "
2286 "iterations left %d\n", retval
, i
);
2289 if (dev
->out_pipe
== 0 || !param
->length
)
2292 dev_info(&intf
->dev
, "TEST 12: unlink %d writes of %d\n",
2293 param
->iterations
, param
->length
);
2294 for (i
= param
->iterations
; retval
== 0 && i
--; /* NOP */)
2295 retval
= unlink_simple(dev
, dev
->out_pipe
,
2298 dev_err(&intf
->dev
, "unlink writes failed %d, "
2299 "iterations left %d\n", retval
, i
);
2304 if (dev
->out_pipe
== 0 && dev
->in_pipe
== 0)
2307 dev_info(&intf
->dev
, "TEST 13: set/clear %d halts\n",
2309 for (i
= param
->iterations
; retval
== 0 && i
--; /* NOP */)
2310 retval
= halt_simple(dev
);
2313 ERROR(dev
, "halts failed, iterations left %d\n", i
);
2316 /* control write tests */
2318 if (!dev
->info
->ctrl_out
)
2320 dev_info(&intf
->dev
, "TEST 14: %d ep0out, %d..%d vary %d\n",
2322 realworld
? 1 : 0, param
->length
,
2324 retval
= ctrl_out(dev
, param
->iterations
,
2325 param
->length
, param
->vary
, 0);
2328 /* iso write tests */
2330 if (dev
->out_iso_pipe
== 0 || param
->sglen
== 0)
2332 dev_info(&intf
->dev
,
2333 "TEST 15: write %d iso, %d entries of %d bytes\n",
2335 param
->sglen
, param
->length
);
2336 /* FIRMWARE: iso sink */
2337 retval
= test_queue(dev
, param
,
2338 dev
->out_iso_pipe
, dev
->iso_out
, 0);
2341 /* iso read tests */
2343 if (dev
->in_iso_pipe
== 0 || param
->sglen
== 0)
2345 dev_info(&intf
->dev
,
2346 "TEST 16: read %d iso, %d entries of %d bytes\n",
2348 param
->sglen
, param
->length
);
2349 /* FIRMWARE: iso source */
2350 retval
= test_queue(dev
, param
,
2351 dev
->in_iso_pipe
, dev
->iso_in
, 0);
2354 /* FIXME scatterlist cancel (needs helper thread) */
2356 /* Tests for bulk I/O using DMA mapping by core and odd address */
2358 if (dev
->out_pipe
== 0)
2360 dev_info(&intf
->dev
,
2361 "TEST 17: write odd addr %d bytes %u times core map\n",
2362 param
->length
, param
->iterations
);
2364 retval
= test_unaligned_bulk(
2366 param
->length
, param
->iterations
,
2371 if (dev
->in_pipe
== 0)
2373 dev_info(&intf
->dev
,
2374 "TEST 18: read odd addr %d bytes %u times core map\n",
2375 param
->length
, param
->iterations
);
2377 retval
= test_unaligned_bulk(
2379 param
->length
, param
->iterations
,
2383 /* Tests for bulk I/O using premapped coherent buffer and odd address */
2385 if (dev
->out_pipe
== 0)
2387 dev_info(&intf
->dev
,
2388 "TEST 19: write odd addr %d bytes %u times premapped\n",
2389 param
->length
, param
->iterations
);
2391 retval
= test_unaligned_bulk(
2393 param
->length
, param
->iterations
,
2394 URB_NO_TRANSFER_DMA_MAP
, "test19");
2398 if (dev
->in_pipe
== 0)
2400 dev_info(&intf
->dev
,
2401 "TEST 20: read odd addr %d bytes %u times premapped\n",
2402 param
->length
, param
->iterations
);
2404 retval
= test_unaligned_bulk(
2406 param
->length
, param
->iterations
,
2407 URB_NO_TRANSFER_DMA_MAP
, "test20");
2410 /* control write tests with unaligned buffer */
2412 if (!dev
->info
->ctrl_out
)
2414 dev_info(&intf
->dev
,
2415 "TEST 21: %d ep0out odd addr, %d..%d vary %d\n",
2417 realworld
? 1 : 0, param
->length
,
2419 retval
= ctrl_out(dev
, param
->iterations
,
2420 param
->length
, param
->vary
, 1);
2423 /* unaligned iso tests */
2425 if (dev
->out_iso_pipe
== 0 || param
->sglen
== 0)
2427 dev_info(&intf
->dev
,
2428 "TEST 22: write %d iso odd, %d entries of %d bytes\n",
2430 param
->sglen
, param
->length
);
2431 retval
= test_queue(dev
, param
,
2432 dev
->out_iso_pipe
, dev
->iso_out
, 1);
2436 if (dev
->in_iso_pipe
== 0 || param
->sglen
== 0)
2438 dev_info(&intf
->dev
,
2439 "TEST 23: read %d iso odd, %d entries of %d bytes\n",
2441 param
->sglen
, param
->length
);
2442 retval
= test_queue(dev
, param
,
2443 dev
->in_iso_pipe
, dev
->iso_in
, 1);
2446 /* unlink URBs from a bulk-OUT queue */
2448 if (dev
->out_pipe
== 0 || !param
->length
|| param
->sglen
< 4)
2451 dev_info(&intf
->dev
, "TEST 24: unlink from %d queues of "
2452 "%d %d-byte writes\n",
2453 param
->iterations
, param
->sglen
, param
->length
);
2454 for (i
= param
->iterations
; retval
== 0 && i
> 0; --i
) {
2455 retval
= unlink_queued(dev
, dev
->out_pipe
,
2456 param
->sglen
, param
->length
);
2459 "unlink queued writes failed %d, "
2460 "iterations left %d\n", retval
, i
);
2466 /* Simple non-queued interrupt I/O tests */
2468 if (dev
->out_int_pipe
== 0)
2470 dev_info(&intf
->dev
,
2471 "TEST 25: write %d bytes %u times\n",
2472 param
->length
, param
->iterations
);
2473 urb
= simple_alloc_urb(udev
, dev
->out_int_pipe
, param
->length
,
2474 dev
->int_out
->bInterval
);
2479 /* FIRMWARE: interrupt sink (maybe accepts short writes) */
2480 retval
= simple_io(dev
, urb
, param
->iterations
, 0, 0, "test25");
2481 simple_free_urb(urb
);
2484 if (dev
->in_int_pipe
== 0)
2486 dev_info(&intf
->dev
,
2487 "TEST 26: read %d bytes %u times\n",
2488 param
->length
, param
->iterations
);
2489 urb
= simple_alloc_urb(udev
, dev
->in_int_pipe
, param
->length
,
2490 dev
->int_in
->bInterval
);
2495 /* FIRMWARE: interrupt source (maybe generates short writes) */
2496 retval
= simple_io(dev
, urb
, param
->iterations
, 0, 0, "test26");
2497 simple_free_urb(urb
);
2500 /* We do performance test, so ignore data compare */
2501 if (dev
->out_pipe
== 0 || param
->sglen
== 0 || pattern
!= 0)
2503 dev_info(&intf
->dev
,
2504 "TEST 27: bulk write %dMbytes\n", (param
->iterations
*
2505 param
->sglen
* param
->length
) / (1024 * 1024));
2506 retval
= test_queue(dev
, param
,
2507 dev
->out_pipe
, NULL
, 0);
2510 if (dev
->in_pipe
== 0 || param
->sglen
== 0 || pattern
!= 0)
2512 dev_info(&intf
->dev
,
2513 "TEST 28: bulk read %dMbytes\n", (param
->iterations
*
2514 param
->sglen
* param
->length
) / (1024 * 1024));
2515 retval
= test_queue(dev
, param
,
2516 dev
->in_pipe
, NULL
, 0);
2522 /*-------------------------------------------------------------------------*/
2524 /* We only have this one interface to user space, through usbfs.
2525 * User mode code can scan usbfs to find N different devices (maybe on
2526 * different busses) to use when testing, and allocate one thread per
2527 * test. So discovery is simplified, and we have no device naming issues.
2529 * Don't use these only as stress/load tests. Use them along with with
2530 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
2531 * video capture, and so on. Run different tests at different times, in
2532 * different sequences. Nothing here should interact with other devices,
2533 * except indirectly by consuming USB bandwidth and CPU resources for test
2534 * threads and request completion. But the only way to know that for sure
2535 * is to test when HC queues are in use by many devices.
2537 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
2538 * it locks out usbcore in certain code paths. Notably, if you disconnect
2539 * the device-under-test, hub_wq will wait block forever waiting for the
2540 * ioctl to complete ... so that usb_disconnect() can abort the pending
2541 * urbs and then call usbtest_disconnect(). To abort a test, you're best
2542 * off just killing the userspace task and waiting for it to exit.
2546 usbtest_ioctl(struct usb_interface
*intf
, unsigned int code
, void *buf
)
2549 struct usbtest_dev
*dev
= usb_get_intfdata(intf
);
2550 struct usbtest_param_64
*param_64
= buf
;
2551 struct usbtest_param_32 temp
;
2552 struct usbtest_param_32
*param_32
= buf
;
2553 struct timespec64 start
;
2554 struct timespec64 end
;
2555 struct timespec64 duration
;
2556 int retval
= -EOPNOTSUPP
;
2558 /* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */
2560 pattern
= mod_pattern
;
2562 if (mutex_lock_interruptible(&dev
->lock
))
2563 return -ERESTARTSYS
;
2565 /* FIXME: What if a system sleep starts while a test is running? */
2567 /* some devices, like ez-usb default devices, need a non-default
2568 * altsetting to have any active endpoints. some tests change
2569 * altsettings; force a default so most tests don't need to check.
2571 if (dev
->info
->alt
>= 0) {
2572 if (intf
->altsetting
->desc
.bInterfaceNumber
) {
2576 retval
= set_altsetting(dev
, dev
->info
->alt
);
2579 "set altsetting to %d failed, %d\n",
2580 dev
->info
->alt
, retval
);
2586 case USBTEST_REQUEST_64
:
2587 temp
.test_num
= param_64
->test_num
;
2588 temp
.iterations
= param_64
->iterations
;
2589 temp
.length
= param_64
->length
;
2590 temp
.sglen
= param_64
->sglen
;
2591 temp
.vary
= param_64
->vary
;
2595 case USBTEST_REQUEST_32
:
2599 retval
= -EOPNOTSUPP
;
2603 ktime_get_ts64(&start
);
2605 retval
= usbtest_do_ioctl(intf
, param_32
);
2609 ktime_get_ts64(&end
);
2611 duration
= timespec64_sub(end
, start
);
2613 temp
.duration_sec
= duration
.tv_sec
;
2614 temp
.duration_usec
= duration
.tv_nsec
/NSEC_PER_USEC
;
2617 case USBTEST_REQUEST_32
:
2618 param_32
->duration_sec
= temp
.duration_sec
;
2619 param_32
->duration_usec
= temp
.duration_usec
;
2622 case USBTEST_REQUEST_64
:
2623 param_64
->duration_sec
= temp
.duration_sec
;
2624 param_64
->duration_usec
= temp
.duration_usec
;
2629 mutex_unlock(&dev
->lock
);
2633 /*-------------------------------------------------------------------------*/
2635 static unsigned force_interrupt
;
2636 module_param(force_interrupt
, uint
, 0);
2637 MODULE_PARM_DESC(force_interrupt
, "0 = test default; else interrupt");
2640 static unsigned short vendor
;
2641 module_param(vendor
, ushort
, 0);
2642 MODULE_PARM_DESC(vendor
, "vendor code (from usb-if)");
2644 static unsigned short product
;
2645 module_param(product
, ushort
, 0);
2646 MODULE_PARM_DESC(product
, "product code (from vendor)");
2650 usbtest_probe(struct usb_interface
*intf
, const struct usb_device_id
*id
)
2652 struct usb_device
*udev
;
2653 struct usbtest_dev
*dev
;
2654 struct usbtest_info
*info
;
2655 char *rtest
, *wtest
;
2656 char *irtest
, *iwtest
;
2657 char *intrtest
, *intwtest
;
2659 udev
= interface_to_usbdev(intf
);
2662 /* specify devices by module parameters? */
2663 if (id
->match_flags
== 0) {
2664 /* vendor match required, product match optional */
2665 if (!vendor
|| le16_to_cpu(udev
->descriptor
.idVendor
) != (u16
)vendor
)
2667 if (product
&& le16_to_cpu(udev
->descriptor
.idProduct
) != (u16
)product
)
2669 dev_info(&intf
->dev
, "matched module params, "
2670 "vend=0x%04x prod=0x%04x\n",
2671 le16_to_cpu(udev
->descriptor
.idVendor
),
2672 le16_to_cpu(udev
->descriptor
.idProduct
));
2676 dev
= kzalloc(sizeof(*dev
), GFP_KERNEL
);
2679 info
= (struct usbtest_info
*) id
->driver_info
;
2681 mutex_init(&dev
->lock
);
2685 /* cacheline-aligned scratch for i/o */
2686 dev
->buf
= kmalloc(TBUF_SIZE
, GFP_KERNEL
);
2687 if (dev
->buf
== NULL
) {
2692 /* NOTE this doesn't yet test the handful of difference that are
2693 * visible with high speed interrupts: bigger maxpacket (1K) and
2694 * "high bandwidth" modes (up to 3 packets/uframe).
2697 irtest
= iwtest
= "";
2698 intrtest
= intwtest
= "";
2699 if (force_interrupt
|| udev
->speed
== USB_SPEED_LOW
) {
2701 dev
->in_pipe
= usb_rcvintpipe(udev
, info
->ep_in
);
2705 dev
->out_pipe
= usb_sndintpipe(udev
, info
->ep_out
);
2706 wtest
= " intr-out";
2709 if (override_alt
>= 0 || info
->autoconf
) {
2712 status
= get_endpoints(dev
, intf
);
2714 WARNING(dev
, "couldn't get endpoints, %d\n",
2720 /* may find bulk or ISO pipes */
2723 dev
->in_pipe
= usb_rcvbulkpipe(udev
,
2726 dev
->out_pipe
= usb_sndbulkpipe(udev
,
2732 wtest
= " bulk-out";
2733 if (dev
->in_iso_pipe
)
2735 if (dev
->out_iso_pipe
)
2736 iwtest
= " iso-out";
2737 if (dev
->in_int_pipe
)
2738 intrtest
= " int-in";
2739 if (dev
->out_int_pipe
)
2740 intwtest
= " int-out";
2743 usb_set_intfdata(intf
, dev
);
2744 dev_info(&intf
->dev
, "%s\n", info
->name
);
2745 dev_info(&intf
->dev
, "%s {control%s%s%s%s%s%s%s} tests%s\n",
2746 usb_speed_string(udev
->speed
),
2747 info
->ctrl_out
? " in/out" : "",
2751 info
->alt
>= 0 ? " (+alt)" : "");
2755 static int usbtest_suspend(struct usb_interface
*intf
, pm_message_t message
)
2760 static int usbtest_resume(struct usb_interface
*intf
)
2766 static void usbtest_disconnect(struct usb_interface
*intf
)
2768 struct usbtest_dev
*dev
= usb_get_intfdata(intf
);
2770 usb_set_intfdata(intf
, NULL
);
2771 dev_dbg(&intf
->dev
, "disconnect\n");
2775 /* Basic testing only needs a device that can source or sink bulk traffic.
2776 * Any device can test control transfers (default with GENERIC binding).
2778 * Several entries work with the default EP0 implementation that's built
2779 * into EZ-USB chips. There's a default vendor ID which can be overridden
2780 * by (very) small config EEPROMS, but otherwise all these devices act
2781 * identically until firmware is loaded: only EP0 works. It turns out
2782 * to be easy to make other endpoints work, without modifying that EP0
2783 * behavior. For now, we expect that kind of firmware.
2786 /* an21xx or fx versions of ez-usb */
2787 static struct usbtest_info ez1_info
= {
2788 .name
= "EZ-USB device",
2794 /* fx2 version of ez-usb */
2795 static struct usbtest_info ez2_info
= {
2796 .name
= "FX2 device",
2802 /* ezusb family device with dedicated usb test firmware,
2804 static struct usbtest_info fw_info
= {
2805 .name
= "usb test device",
2809 .autoconf
= 1, /* iso and ctrl_out need autoconf */
2811 .iso
= 1, /* iso_ep's are #8 in/out */
2814 /* peripheral running Linux and 'zero.c' test firmware, or
2815 * its user-mode cousin. different versions of this use
2816 * different hardware with the same vendor/product codes.
2817 * host side MUST rely on the endpoint descriptors.
2819 static struct usbtest_info gz_info
= {
2820 .name
= "Linux gadget zero",
2828 static struct usbtest_info um_info
= {
2829 .name
= "Linux user mode test driver",
2834 static struct usbtest_info um2_info
= {
2835 .name
= "Linux user mode ISO test driver",
2842 /* this is a nice source of high speed bulk data;
2843 * uses an FX2, with firmware provided in the device
2845 static struct usbtest_info ibot2_info
= {
2846 .name
= "iBOT2 webcam",
2853 /* we can use any device to test control traffic */
2854 static struct usbtest_info generic_info
= {
2855 .name
= "Generic USB device",
2861 static const struct usb_device_id id_table
[] = {
2863 /*-------------------------------------------------------------*/
2865 /* EZ-USB devices which download firmware to replace (or in our
2866 * case augment) the default device implementation.
2869 /* generic EZ-USB FX controller */
2870 { USB_DEVICE(0x0547, 0x2235),
2871 .driver_info
= (unsigned long) &ez1_info
,
2874 /* CY3671 development board with EZ-USB FX */
2875 { USB_DEVICE(0x0547, 0x0080),
2876 .driver_info
= (unsigned long) &ez1_info
,
2879 /* generic EZ-USB FX2 controller (or development board) */
2880 { USB_DEVICE(0x04b4, 0x8613),
2881 .driver_info
= (unsigned long) &ez2_info
,
2884 /* re-enumerated usb test device firmware */
2885 { USB_DEVICE(0xfff0, 0xfff0),
2886 .driver_info
= (unsigned long) &fw_info
,
2889 /* "Gadget Zero" firmware runs under Linux */
2890 { USB_DEVICE(0x0525, 0xa4a0),
2891 .driver_info
= (unsigned long) &gz_info
,
2894 /* so does a user-mode variant */
2895 { USB_DEVICE(0x0525, 0xa4a4),
2896 .driver_info
= (unsigned long) &um_info
,
2899 /* ... and a user-mode variant that talks iso */
2900 { USB_DEVICE(0x0525, 0xa4a3),
2901 .driver_info
= (unsigned long) &um2_info
,
2905 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2906 /* this does not coexist with the real Keyspan 19qi driver! */
2907 { USB_DEVICE(0x06cd, 0x010b),
2908 .driver_info
= (unsigned long) &ez1_info
,
2912 /*-------------------------------------------------------------*/
2915 /* iBOT2 makes a nice source of high speed bulk-in data */
2916 /* this does not coexist with a real iBOT2 driver! */
2917 { USB_DEVICE(0x0b62, 0x0059),
2918 .driver_info
= (unsigned long) &ibot2_info
,
2922 /*-------------------------------------------------------------*/
2925 /* module params can specify devices to use for control tests */
2926 { .driver_info
= (unsigned long) &generic_info
, },
2929 /*-------------------------------------------------------------*/
2933 MODULE_DEVICE_TABLE(usb
, id_table
);
2935 static struct usb_driver usbtest_driver
= {
2937 .id_table
= id_table
,
2938 .probe
= usbtest_probe
,
2939 .unlocked_ioctl
= usbtest_ioctl
,
2940 .disconnect
= usbtest_disconnect
,
2941 .suspend
= usbtest_suspend
,
2942 .resume
= usbtest_resume
,
2945 /*-------------------------------------------------------------------------*/
2947 static int __init
usbtest_init(void)
2951 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor
, product
);
2953 return usb_register(&usbtest_driver
);
2955 module_init(usbtest_init
);
2957 static void __exit
usbtest_exit(void)
2959 usb_deregister(&usbtest_driver
);
2961 module_exit(usbtest_exit
);
2963 MODULE_DESCRIPTION("USB Core/HCD Testing Driver");
2964 MODULE_LICENSE("GPL");