Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #include <linux/kernel.h> |
| 2 | #include <linux/errno.h> |
| 3 | #include <linux/init.h> |
| 4 | #include <linux/slab.h> |
| 5 | #include <linux/mm.h> |
| 6 | #include <linux/module.h> |
| 7 | #include <linux/moduleparam.h> |
David Hardeman | 378f058 | 2005-09-17 17:55:31 +1000 | [diff] [blame] | 8 | #include <linux/scatterlist.h> |
Matthias Kaehlcke | 1cfab02 | 2007-12-13 16:15:33 -0800 | [diff] [blame] | 9 | #include <linux/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | |
| 11 | #include <linux/usb.h> |
| 12 | |
| 13 | |
| 14 | /*-------------------------------------------------------------------------*/ |
| 15 | |
| 16 | // FIXME make these public somewhere; usbdevfs.h? |
| 17 | // |
| 18 | struct usbtest_param { |
| 19 | // inputs |
| 20 | unsigned test_num; /* 0..(TEST_CASES-1) */ |
| 21 | unsigned iterations; |
| 22 | unsigned length; |
| 23 | unsigned vary; |
| 24 | unsigned sglen; |
| 25 | |
| 26 | // outputs |
| 27 | struct timeval duration; |
| 28 | }; |
| 29 | #define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param) |
| 30 | |
| 31 | /*-------------------------------------------------------------------------*/ |
| 32 | |
| 33 | #define GENERIC /* let probe() bind using module params */ |
| 34 | |
| 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 |
| 37 | * that "real" driver. |
| 38 | */ |
| 39 | //#define IBOT2 /* grab iBOT2 webcams */ |
| 40 | //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */ |
| 41 | |
| 42 | /*-------------------------------------------------------------------------*/ |
| 43 | |
| 44 | struct usbtest_info { |
| 45 | const char *name; |
| 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 */ |
| 51 | int alt; |
| 52 | }; |
| 53 | |
| 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. |
| 59 | */ |
| 60 | struct usbtest_dev { |
| 61 | struct usb_interface *intf; |
| 62 | struct usbtest_info *info; |
| 63 | int in_pipe; |
| 64 | int out_pipe; |
| 65 | int in_iso_pipe; |
| 66 | int out_iso_pipe; |
| 67 | struct usb_endpoint_descriptor *iso_in, *iso_out; |
Matthias Kaehlcke | 1cfab02 | 2007-12-13 16:15:33 -0800 | [diff] [blame] | 68 | struct mutex lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | |
| 70 | #define TBUF_SIZE 256 |
| 71 | u8 *buf; |
| 72 | }; |
| 73 | |
| 74 | static struct usb_device *testdev_to_usbdev (struct usbtest_dev *test) |
| 75 | { |
| 76 | return interface_to_usbdev (test->intf); |
| 77 | } |
| 78 | |
| 79 | /* set up all urbs so they can be used with either bulk or interrupt */ |
| 80 | #define INTERRUPT_RATE 1 /* msec/transfer */ |
| 81 | |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 82 | #define ERROR(tdev, fmt, args...) \ |
| 83 | dev_err(&(tdev)->intf->dev , fmt , ## args) |
| 84 | #define WARN(tdev, fmt, args...) \ |
| 85 | dev_warn(&(tdev)->intf->dev , fmt , ## args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | |
| 87 | /*-------------------------------------------------------------------------*/ |
| 88 | |
| 89 | static int |
| 90 | get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf) |
| 91 | { |
| 92 | int tmp; |
| 93 | struct usb_host_interface *alt; |
| 94 | struct usb_host_endpoint *in, *out; |
| 95 | struct usb_host_endpoint *iso_in, *iso_out; |
| 96 | struct usb_device *udev; |
| 97 | |
| 98 | for (tmp = 0; tmp < intf->num_altsetting; tmp++) { |
| 99 | unsigned ep; |
| 100 | |
| 101 | in = out = NULL; |
| 102 | iso_in = iso_out = NULL; |
| 103 | alt = intf->altsetting + tmp; |
| 104 | |
| 105 | /* take the first altsetting with in-bulk + out-bulk; |
| 106 | * ignore other endpoints and altsetttings. |
| 107 | */ |
| 108 | for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { |
| 109 | struct usb_host_endpoint *e; |
| 110 | |
| 111 | e = alt->endpoint + ep; |
| 112 | switch (e->desc.bmAttributes) { |
| 113 | case USB_ENDPOINT_XFER_BULK: |
| 114 | break; |
| 115 | case USB_ENDPOINT_XFER_ISOC: |
| 116 | if (dev->info->iso) |
| 117 | goto try_iso; |
| 118 | // FALLTHROUGH |
| 119 | default: |
| 120 | continue; |
| 121 | } |
Luiz Fernando N. Capitulino | 4d823dd | 2006-10-26 13:03:02 -0300 | [diff] [blame] | 122 | if (usb_endpoint_dir_in(&e->desc)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | if (!in) |
| 124 | in = e; |
| 125 | } else { |
| 126 | if (!out) |
| 127 | out = e; |
| 128 | } |
| 129 | continue; |
| 130 | try_iso: |
Luiz Fernando N. Capitulino | 4d823dd | 2006-10-26 13:03:02 -0300 | [diff] [blame] | 131 | if (usb_endpoint_dir_in(&e->desc)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | if (!iso_in) |
| 133 | iso_in = e; |
| 134 | } else { |
| 135 | if (!iso_out) |
| 136 | iso_out = e; |
| 137 | } |
| 138 | } |
| 139 | if ((in && out) || (iso_in && iso_out)) |
| 140 | goto found; |
| 141 | } |
| 142 | return -EINVAL; |
| 143 | |
| 144 | found: |
| 145 | udev = testdev_to_usbdev (dev); |
| 146 | if (alt->desc.bAlternateSetting != 0) { |
| 147 | tmp = usb_set_interface (udev, |
| 148 | alt->desc.bInterfaceNumber, |
| 149 | alt->desc.bAlternateSetting); |
| 150 | if (tmp < 0) |
| 151 | return tmp; |
| 152 | } |
| 153 | |
| 154 | if (in) { |
| 155 | dev->in_pipe = usb_rcvbulkpipe (udev, |
| 156 | in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); |
| 157 | dev->out_pipe = usb_sndbulkpipe (udev, |
| 158 | out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); |
| 159 | } |
| 160 | if (iso_in) { |
| 161 | dev->iso_in = &iso_in->desc; |
| 162 | dev->in_iso_pipe = usb_rcvisocpipe (udev, |
| 163 | iso_in->desc.bEndpointAddress |
| 164 | & USB_ENDPOINT_NUMBER_MASK); |
| 165 | dev->iso_out = &iso_out->desc; |
| 166 | dev->out_iso_pipe = usb_sndisocpipe (udev, |
| 167 | iso_out->desc.bEndpointAddress |
| 168 | & USB_ENDPOINT_NUMBER_MASK); |
| 169 | } |
| 170 | return 0; |
| 171 | } |
| 172 | |
| 173 | /*-------------------------------------------------------------------------*/ |
| 174 | |
| 175 | /* Support for testing basic non-queued I/O streams. |
| 176 | * |
| 177 | * These just package urbs as requests that can be easily canceled. |
| 178 | * Each urb's data buffer is dynamically allocated; callers can fill |
| 179 | * them with non-zero test data (or test for it) when appropriate. |
| 180 | */ |
| 181 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 182 | static void simple_callback (struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 184 | complete(urb->context); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | } |
| 186 | |
| 187 | static struct urb *simple_alloc_urb ( |
| 188 | struct usb_device *udev, |
| 189 | int pipe, |
| 190 | unsigned long bytes |
| 191 | ) |
| 192 | { |
| 193 | struct urb *urb; |
| 194 | |
| 195 | if (bytes < 0) |
| 196 | return NULL; |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 197 | urb = usb_alloc_urb (0, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | if (!urb) |
| 199 | return urb; |
| 200 | usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL); |
| 201 | urb->interval = (udev->speed == USB_SPEED_HIGH) |
| 202 | ? (INTERRUPT_RATE << 3) |
| 203 | : INTERRUPT_RATE; |
| 204 | urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; |
| 205 | if (usb_pipein (pipe)) |
| 206 | urb->transfer_flags |= URB_SHORT_NOT_OK; |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 207 | urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | &urb->transfer_dma); |
| 209 | if (!urb->transfer_buffer) { |
| 210 | usb_free_urb (urb); |
| 211 | urb = NULL; |
| 212 | } else |
| 213 | memset (urb->transfer_buffer, 0, bytes); |
| 214 | return urb; |
| 215 | } |
| 216 | |
| 217 | static unsigned pattern = 0; |
| 218 | module_param (pattern, uint, S_IRUGO); |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 219 | MODULE_PARM_DESC(pattern, "i/o pattern (0 == zeroes)"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | |
| 221 | static inline void simple_fill_buf (struct urb *urb) |
| 222 | { |
| 223 | unsigned i; |
| 224 | u8 *buf = urb->transfer_buffer; |
| 225 | unsigned len = urb->transfer_buffer_length; |
| 226 | |
| 227 | switch (pattern) { |
| 228 | default: |
| 229 | // FALLTHROUGH |
| 230 | case 0: |
| 231 | memset (buf, 0, len); |
| 232 | break; |
| 233 | case 1: /* mod63 */ |
| 234 | for (i = 0; i < len; i++) |
| 235 | *buf++ = (u8) (i % 63); |
| 236 | break; |
| 237 | } |
| 238 | } |
| 239 | |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 240 | static inline int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | { |
| 242 | unsigned i; |
| 243 | u8 expected; |
| 244 | u8 *buf = urb->transfer_buffer; |
| 245 | unsigned len = urb->actual_length; |
| 246 | |
| 247 | for (i = 0; i < len; i++, buf++) { |
| 248 | switch (pattern) { |
| 249 | /* all-zeroes has no synchronization issues */ |
| 250 | case 0: |
| 251 | expected = 0; |
| 252 | break; |
| 253 | /* mod63 stays in sync with short-terminated transfers, |
| 254 | * or otherwise when host and gadget agree on how large |
| 255 | * each usb transfer request should be. resync is done |
| 256 | * with set_interface or set_config. |
| 257 | */ |
| 258 | case 1: /* mod63 */ |
| 259 | expected = i % 63; |
| 260 | break; |
| 261 | /* always fail unsupported patterns */ |
| 262 | default: |
| 263 | expected = !*buf; |
| 264 | break; |
| 265 | } |
| 266 | if (*buf == expected) |
| 267 | continue; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 268 | ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | return -EINVAL; |
| 270 | } |
| 271 | return 0; |
| 272 | } |
| 273 | |
| 274 | static void simple_free_urb (struct urb *urb) |
| 275 | { |
| 276 | usb_buffer_free (urb->dev, urb->transfer_buffer_length, |
| 277 | urb->transfer_buffer, urb->transfer_dma); |
| 278 | usb_free_urb (urb); |
| 279 | } |
| 280 | |
| 281 | static int simple_io ( |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 282 | struct usbtest_dev *tdev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | struct urb *urb, |
| 284 | int iterations, |
| 285 | int vary, |
| 286 | int expected, |
| 287 | const char *label |
| 288 | ) |
| 289 | { |
| 290 | struct usb_device *udev = urb->dev; |
| 291 | int max = urb->transfer_buffer_length; |
| 292 | struct completion completion; |
| 293 | int retval = 0; |
| 294 | |
| 295 | urb->context = &completion; |
| 296 | while (retval == 0 && iterations-- > 0) { |
| 297 | init_completion (&completion); |
| 298 | if (usb_pipeout (urb->pipe)) |
| 299 | simple_fill_buf (urb); |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 300 | if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | break; |
| 302 | |
| 303 | /* NOTE: no timeouts; can't be broken out of by interrupt */ |
| 304 | wait_for_completion (&completion); |
| 305 | retval = urb->status; |
| 306 | urb->dev = udev; |
| 307 | if (retval == 0 && usb_pipein (urb->pipe)) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 308 | retval = simple_check_buf(tdev, urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | |
| 310 | if (vary) { |
| 311 | int len = urb->transfer_buffer_length; |
| 312 | |
| 313 | len += vary; |
| 314 | len %= max; |
| 315 | if (len == 0) |
| 316 | len = (vary < max) ? vary : max; |
| 317 | urb->transfer_buffer_length = len; |
| 318 | } |
| 319 | |
| 320 | /* FIXME if endpoint halted, clear halt (and log) */ |
| 321 | } |
| 322 | urb->transfer_buffer_length = max; |
| 323 | |
| 324 | if (expected != retval) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 325 | dev_err(&udev->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | "%s failed, iterations left %d, status %d (not %d)\n", |
| 327 | label, iterations, retval, expected); |
| 328 | return retval; |
| 329 | } |
| 330 | |
| 331 | |
| 332 | /*-------------------------------------------------------------------------*/ |
| 333 | |
| 334 | /* We use scatterlist primitives to test queued I/O. |
| 335 | * Yes, this also tests the scatterlist primitives. |
| 336 | */ |
| 337 | |
| 338 | static void free_sglist (struct scatterlist *sg, int nents) |
| 339 | { |
| 340 | unsigned i; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 341 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | if (!sg) |
| 343 | return; |
| 344 | for (i = 0; i < nents; i++) { |
Jens Axboe | 45711f1 | 2007-10-22 21:19:53 +0200 | [diff] [blame] | 345 | if (!sg_page(&sg[i])) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | continue; |
Jens Axboe | 45711f1 | 2007-10-22 21:19:53 +0200 | [diff] [blame] | 347 | kfree (sg_virt(&sg[i])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | } |
| 349 | kfree (sg); |
| 350 | } |
| 351 | |
| 352 | static struct scatterlist * |
| 353 | alloc_sglist (int nents, int max, int vary) |
| 354 | { |
| 355 | struct scatterlist *sg; |
| 356 | unsigned i; |
| 357 | unsigned size = max; |
| 358 | |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 359 | sg = kmalloc (nents * sizeof *sg, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | if (!sg) |
| 361 | return NULL; |
Alan Stern | 4756feb | 2008-03-27 10:15:22 -0400 | [diff] [blame] | 362 | sg_init_table(sg, nents); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | |
| 364 | for (i = 0; i < nents; i++) { |
| 365 | char *buf; |
David Brownell | 8b52490 | 2006-04-02 10:20:15 -0800 | [diff] [blame] | 366 | unsigned j; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 368 | buf = kzalloc (size, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | if (!buf) { |
| 370 | free_sglist (sg, i); |
| 371 | return NULL; |
| 372 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | |
| 374 | /* kmalloc pages are always physically contiguous! */ |
Alan Stern | 4756feb | 2008-03-27 10:15:22 -0400 | [diff] [blame] | 375 | sg_set_buf(&sg[i], buf, size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | |
David Brownell | 8b52490 | 2006-04-02 10:20:15 -0800 | [diff] [blame] | 377 | switch (pattern) { |
| 378 | case 0: |
| 379 | /* already zeroed */ |
| 380 | break; |
| 381 | case 1: |
| 382 | for (j = 0; j < size; j++) |
| 383 | *buf++ = (u8) (j % 63); |
| 384 | break; |
| 385 | } |
| 386 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | if (vary) { |
| 388 | size += vary; |
| 389 | size %= max; |
| 390 | if (size == 0) |
| 391 | size = (vary < max) ? vary : max; |
| 392 | } |
| 393 | } |
| 394 | |
| 395 | return sg; |
| 396 | } |
| 397 | |
| 398 | static int perform_sglist ( |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 399 | struct usbtest_dev *tdev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | unsigned iterations, |
| 401 | int pipe, |
| 402 | struct usb_sg_request *req, |
| 403 | struct scatterlist *sg, |
| 404 | int nents |
| 405 | ) |
| 406 | { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 407 | struct usb_device *udev = testdev_to_usbdev(tdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | int retval = 0; |
| 409 | |
| 410 | while (retval == 0 && iterations-- > 0) { |
| 411 | retval = usb_sg_init (req, udev, pipe, |
| 412 | (udev->speed == USB_SPEED_HIGH) |
| 413 | ? (INTERRUPT_RATE << 3) |
| 414 | : INTERRUPT_RATE, |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 415 | sg, nents, 0, GFP_KERNEL); |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 416 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | if (retval) |
| 418 | break; |
| 419 | usb_sg_wait (req); |
| 420 | retval = req->status; |
| 421 | |
David Brownell | 8b52490 | 2006-04-02 10:20:15 -0800 | [diff] [blame] | 422 | /* FIXME check resulting data pattern */ |
| 423 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | /* FIXME if endpoint halted, clear halt (and log) */ |
| 425 | } |
| 426 | |
| 427 | // FIXME for unlink or fault handling tests, don't report |
| 428 | // failure if retval is as we expected ... |
| 429 | |
| 430 | if (retval) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 431 | ERROR(tdev, "perform_sglist failed, " |
| 432 | "iterations left %d, status %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | iterations, retval); |
| 434 | return retval; |
| 435 | } |
| 436 | |
| 437 | |
| 438 | /*-------------------------------------------------------------------------*/ |
| 439 | |
| 440 | /* unqueued control message testing |
| 441 | * |
| 442 | * there's a nice set of device functional requirements in chapter 9 of the |
| 443 | * usb 2.0 spec, which we can apply to ANY device, even ones that don't use |
| 444 | * special test firmware. |
| 445 | * |
| 446 | * we know the device is configured (or suspended) by the time it's visible |
| 447 | * through usbfs. we can't change that, so we won't test enumeration (which |
| 448 | * worked 'well enough' to get here, this time), power management (ditto), |
| 449 | * or remote wakeup (which needs human interaction). |
| 450 | */ |
| 451 | |
| 452 | static unsigned realworld = 1; |
| 453 | module_param (realworld, uint, 0); |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 454 | MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | |
| 456 | static int get_altsetting (struct usbtest_dev *dev) |
| 457 | { |
| 458 | struct usb_interface *iface = dev->intf; |
| 459 | struct usb_device *udev = interface_to_usbdev (iface); |
| 460 | int retval; |
| 461 | |
| 462 | retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), |
| 463 | USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE, |
| 464 | 0, iface->altsetting [0].desc.bInterfaceNumber, |
| 465 | dev->buf, 1, USB_CTRL_GET_TIMEOUT); |
| 466 | switch (retval) { |
| 467 | case 1: |
| 468 | return dev->buf [0]; |
| 469 | case 0: |
| 470 | retval = -ERANGE; |
| 471 | // FALLTHROUGH |
| 472 | default: |
| 473 | return retval; |
| 474 | } |
| 475 | } |
| 476 | |
| 477 | static int set_altsetting (struct usbtest_dev *dev, int alternate) |
| 478 | { |
| 479 | struct usb_interface *iface = dev->intf; |
| 480 | struct usb_device *udev; |
| 481 | |
| 482 | if (alternate < 0 || alternate >= 256) |
| 483 | return -EINVAL; |
| 484 | |
| 485 | udev = interface_to_usbdev (iface); |
| 486 | return usb_set_interface (udev, |
| 487 | iface->altsetting [0].desc.bInterfaceNumber, |
| 488 | alternate); |
| 489 | } |
| 490 | |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 491 | static int is_good_config(struct usbtest_dev *tdev, int len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | { |
| 493 | struct usb_config_descriptor *config; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 494 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | if (len < sizeof *config) |
| 496 | return 0; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 497 | config = (struct usb_config_descriptor *) tdev->buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | |
| 499 | switch (config->bDescriptorType) { |
| 500 | case USB_DT_CONFIG: |
| 501 | case USB_DT_OTHER_SPEED_CONFIG: |
| 502 | if (config->bLength != 9) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 503 | ERROR(tdev, "bogus config descriptor length\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | return 0; |
| 505 | } |
| 506 | /* this bit 'must be 1' but often isn't */ |
| 507 | if (!realworld && !(config->bmAttributes & 0x80)) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 508 | ERROR(tdev, "high bit of config attributes not set\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | return 0; |
| 510 | } |
| 511 | if (config->bmAttributes & 0x1f) { /* reserved == 0 */ |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 512 | ERROR(tdev, "reserved config bits set\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | return 0; |
| 514 | } |
| 515 | break; |
| 516 | default: |
| 517 | return 0; |
| 518 | } |
| 519 | |
| 520 | if (le16_to_cpu(config->wTotalLength) == len) /* read it all */ |
| 521 | return 1; |
| 522 | if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */ |
| 523 | return 1; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 524 | ERROR(tdev, "bogus config descriptor read size\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | return 0; |
| 526 | } |
| 527 | |
| 528 | /* sanity test for standard requests working with usb_control_mesg() and some |
| 529 | * of the utility functions which use it. |
| 530 | * |
| 531 | * this doesn't test how endpoint halts behave or data toggles get set, since |
| 532 | * we won't do I/O to bulk/interrupt endpoints here (which is how to change |
| 533 | * halt or toggle). toggle testing is impractical without support from hcds. |
| 534 | * |
| 535 | * this avoids failing devices linux would normally work with, by not testing |
| 536 | * config/altsetting operations for devices that only support their defaults. |
| 537 | * such devices rarely support those needless operations. |
| 538 | * |
| 539 | * NOTE that since this is a sanity test, it's not examining boundary cases |
| 540 | * to see if usbcore, hcd, and device all behave right. such testing would |
| 541 | * involve varied read sizes and other operation sequences. |
| 542 | */ |
| 543 | static int ch9_postconfig (struct usbtest_dev *dev) |
| 544 | { |
| 545 | struct usb_interface *iface = dev->intf; |
| 546 | struct usb_device *udev = interface_to_usbdev (iface); |
| 547 | int i, alt, retval; |
| 548 | |
| 549 | /* [9.2.3] if there's more than one altsetting, we need to be able to |
| 550 | * set and get each one. mostly trusts the descriptors from usbcore. |
| 551 | */ |
| 552 | for (i = 0; i < iface->num_altsetting; i++) { |
| 553 | |
| 554 | /* 9.2.3 constrains the range here */ |
| 555 | alt = iface->altsetting [i].desc.bAlternateSetting; |
| 556 | if (alt < 0 || alt >= iface->num_altsetting) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 557 | dev_err(&iface->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | "invalid alt [%d].bAltSetting = %d\n", |
| 559 | i, alt); |
| 560 | } |
| 561 | |
| 562 | /* [real world] get/set unimplemented if there's only one */ |
| 563 | if (realworld && iface->num_altsetting == 1) |
| 564 | continue; |
| 565 | |
| 566 | /* [9.4.10] set_interface */ |
| 567 | retval = set_altsetting (dev, alt); |
| 568 | if (retval) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 569 | dev_err(&iface->dev, "can't set_interface = %d, %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | alt, retval); |
| 571 | return retval; |
| 572 | } |
| 573 | |
| 574 | /* [9.4.4] get_interface always works */ |
| 575 | retval = get_altsetting (dev); |
| 576 | if (retval != alt) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 577 | dev_err(&iface->dev, "get alt should be %d, was %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | alt, retval); |
| 579 | return (retval < 0) ? retval : -EDOM; |
| 580 | } |
| 581 | |
| 582 | } |
| 583 | |
| 584 | /* [real world] get_config unimplemented if there's only one */ |
| 585 | if (!realworld || udev->descriptor.bNumConfigurations != 1) { |
| 586 | int expected = udev->actconfig->desc.bConfigurationValue; |
| 587 | |
| 588 | /* [9.4.2] get_configuration always works |
| 589 | * ... although some cheap devices (like one TI Hub I've got) |
| 590 | * won't return config descriptors except before set_config. |
| 591 | */ |
| 592 | retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), |
| 593 | USB_REQ_GET_CONFIGURATION, |
| 594 | USB_DIR_IN | USB_RECIP_DEVICE, |
| 595 | 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT); |
| 596 | if (retval != 1 || dev->buf [0] != expected) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 597 | dev_err(&iface->dev, "get config --> %d %d (1 %d)\n", |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 598 | retval, dev->buf[0], expected); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | return (retval < 0) ? retval : -EDOM; |
| 600 | } |
| 601 | } |
| 602 | |
| 603 | /* there's always [9.4.3] a device descriptor [9.6.1] */ |
| 604 | retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0, |
| 605 | dev->buf, sizeof udev->descriptor); |
| 606 | if (retval != sizeof udev->descriptor) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 607 | dev_err(&iface->dev, "dev descriptor --> %d\n", retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | return (retval < 0) ? retval : -EDOM; |
| 609 | } |
| 610 | |
| 611 | /* there's always [9.4.3] at least one config descriptor [9.6.3] */ |
| 612 | for (i = 0; i < udev->descriptor.bNumConfigurations; i++) { |
| 613 | retval = usb_get_descriptor (udev, USB_DT_CONFIG, i, |
| 614 | dev->buf, TBUF_SIZE); |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 615 | if (!is_good_config(dev, retval)) { |
| 616 | dev_err(&iface->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | "config [%d] descriptor --> %d\n", |
| 618 | i, retval); |
| 619 | return (retval < 0) ? retval : -EDOM; |
| 620 | } |
| 621 | |
| 622 | // FIXME cross-checking udev->config[i] to make sure usbcore |
| 623 | // parsed it right (etc) would be good testing paranoia |
| 624 | } |
| 625 | |
| 626 | /* and sometimes [9.2.6.6] speed dependent descriptors */ |
| 627 | if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) { |
| 628 | struct usb_qualifier_descriptor *d = NULL; |
| 629 | |
| 630 | /* device qualifier [9.6.2] */ |
| 631 | retval = usb_get_descriptor (udev, |
| 632 | USB_DT_DEVICE_QUALIFIER, 0, dev->buf, |
| 633 | sizeof (struct usb_qualifier_descriptor)); |
| 634 | if (retval == -EPIPE) { |
| 635 | if (udev->speed == USB_SPEED_HIGH) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 636 | dev_err(&iface->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | "hs dev qualifier --> %d\n", |
| 638 | retval); |
| 639 | return (retval < 0) ? retval : -EDOM; |
| 640 | } |
| 641 | /* usb2.0 but not high-speed capable; fine */ |
| 642 | } else if (retval != sizeof (struct usb_qualifier_descriptor)) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 643 | dev_err(&iface->dev, "dev qualifier --> %d\n", retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | return (retval < 0) ? retval : -EDOM; |
| 645 | } else |
| 646 | d = (struct usb_qualifier_descriptor *) dev->buf; |
| 647 | |
| 648 | /* might not have [9.6.2] any other-speed configs [9.6.4] */ |
| 649 | if (d) { |
| 650 | unsigned max = d->bNumConfigurations; |
| 651 | for (i = 0; i < max; i++) { |
| 652 | retval = usb_get_descriptor (udev, |
| 653 | USB_DT_OTHER_SPEED_CONFIG, i, |
| 654 | dev->buf, TBUF_SIZE); |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 655 | if (!is_good_config(dev, retval)) { |
| 656 | dev_err(&iface->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | "other speed config --> %d\n", |
| 658 | retval); |
| 659 | return (retval < 0) ? retval : -EDOM; |
| 660 | } |
| 661 | } |
| 662 | } |
| 663 | } |
| 664 | // FIXME fetch strings from at least the device descriptor |
| 665 | |
| 666 | /* [9.4.5] get_status always works */ |
| 667 | retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf); |
| 668 | if (retval != 2) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 669 | dev_err(&iface->dev, "get dev status --> %d\n", retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | return (retval < 0) ? retval : -EDOM; |
| 671 | } |
| 672 | |
| 673 | // FIXME configuration.bmAttributes says if we could try to set/clear |
| 674 | // the device's remote wakeup feature ... if we can, test that here |
| 675 | |
| 676 | retval = usb_get_status (udev, USB_RECIP_INTERFACE, |
| 677 | iface->altsetting [0].desc.bInterfaceNumber, dev->buf); |
| 678 | if (retval != 2) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 679 | dev_err(&iface->dev, "get interface status --> %d\n", retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | return (retval < 0) ? retval : -EDOM; |
| 681 | } |
| 682 | // FIXME get status for each endpoint in the interface |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 683 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | return 0; |
| 685 | } |
| 686 | |
| 687 | /*-------------------------------------------------------------------------*/ |
| 688 | |
| 689 | /* use ch9 requests to test whether: |
| 690 | * (a) queues work for control, keeping N subtests queued and |
| 691 | * active (auto-resubmit) for M loops through the queue. |
| 692 | * (b) protocol stalls (control-only) will autorecover. |
| 693 | * it's not like bulk/intr; no halt clearing. |
| 694 | * (c) short control reads are reported and handled. |
| 695 | * (d) queues are always processed in-order |
| 696 | */ |
| 697 | |
| 698 | struct ctrl_ctx { |
| 699 | spinlock_t lock; |
| 700 | struct usbtest_dev *dev; |
| 701 | struct completion complete; |
| 702 | unsigned count; |
| 703 | unsigned pending; |
| 704 | int status; |
| 705 | struct urb **urb; |
| 706 | struct usbtest_param *param; |
| 707 | int last; |
| 708 | }; |
| 709 | |
| 710 | #define NUM_SUBCASES 15 /* how many test subcases here? */ |
| 711 | |
| 712 | struct subcase { |
| 713 | struct usb_ctrlrequest setup; |
| 714 | int number; |
| 715 | int expected; |
| 716 | }; |
| 717 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 718 | static void ctrl_complete (struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | { |
| 720 | struct ctrl_ctx *ctx = urb->context; |
| 721 | struct usb_ctrlrequest *reqp; |
| 722 | struct subcase *subcase; |
| 723 | int status = urb->status; |
| 724 | |
| 725 | reqp = (struct usb_ctrlrequest *)urb->setup_packet; |
| 726 | subcase = container_of (reqp, struct subcase, setup); |
| 727 | |
| 728 | spin_lock (&ctx->lock); |
| 729 | ctx->count--; |
| 730 | ctx->pending--; |
| 731 | |
| 732 | /* queue must transfer and complete in fifo order, unless |
| 733 | * usb_unlink_urb() is used to unlink something not at the |
| 734 | * physical queue head (not tested). |
| 735 | */ |
| 736 | if (subcase->number > 0) { |
| 737 | if ((subcase->number - ctx->last) != 1) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 738 | ERROR(ctx->dev, |
| 739 | "subcase %d completed out of order, last %d\n", |
| 740 | subcase->number, ctx->last); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | status = -EDOM; |
| 742 | ctx->last = subcase->number; |
| 743 | goto error; |
| 744 | } |
| 745 | } |
| 746 | ctx->last = subcase->number; |
| 747 | |
| 748 | /* succeed or fault in only one way? */ |
| 749 | if (status == subcase->expected) |
| 750 | status = 0; |
| 751 | |
| 752 | /* async unlink for cleanup? */ |
| 753 | else if (status != -ECONNRESET) { |
| 754 | |
| 755 | /* some faults are allowed, not required */ |
| 756 | if (subcase->expected > 0 && ( |
Greg Kroah-Hartman | 59d9978 | 2007-07-18 10:58:02 -0700 | [diff] [blame] | 757 | ((status == -subcase->expected /* happened */ |
| 758 | || status == 0)))) /* didn't */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 759 | status = 0; |
| 760 | /* sometimes more than one fault is allowed */ |
| 761 | else if (subcase->number == 12 && status == -EPIPE) |
| 762 | status = 0; |
| 763 | else |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 764 | ERROR(ctx->dev, "subtest %d error, status %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 765 | subcase->number, status); |
| 766 | } |
| 767 | |
| 768 | /* unexpected status codes mean errors; ideally, in hardware */ |
| 769 | if (status) { |
| 770 | error: |
| 771 | if (ctx->status == 0) { |
| 772 | int i; |
| 773 | |
| 774 | ctx->status = status; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 775 | ERROR(ctx->dev, "control queue %02x.%02x, err %d, " |
| 776 | "%d left, subcase %d, len %d/%d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | reqp->bRequestType, reqp->bRequest, |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 778 | status, ctx->count, subcase->number, |
| 779 | urb->actual_length, |
| 780 | urb->transfer_buffer_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | |
| 782 | /* FIXME this "unlink everything" exit route should |
| 783 | * be a separate test case. |
| 784 | */ |
| 785 | |
| 786 | /* unlink whatever's still pending */ |
| 787 | for (i = 1; i < ctx->param->sglen; i++) { |
| 788 | struct urb *u = ctx->urb [ |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 789 | (i + subcase->number) |
| 790 | % ctx->param->sglen]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | |
| 792 | if (u == urb || !u->dev) |
| 793 | continue; |
Franck Bui-Huu | caa2a12 | 2006-05-15 19:23:53 +0200 | [diff] [blame] | 794 | spin_unlock(&ctx->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 795 | status = usb_unlink_urb (u); |
Franck Bui-Huu | caa2a12 | 2006-05-15 19:23:53 +0200 | [diff] [blame] | 796 | spin_lock(&ctx->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | switch (status) { |
| 798 | case -EINPROGRESS: |
| 799 | case -EBUSY: |
| 800 | case -EIDRM: |
| 801 | continue; |
| 802 | default: |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 803 | ERROR(ctx->dev, "urb unlink --> %d\n", |
| 804 | status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | } |
| 806 | } |
| 807 | status = ctx->status; |
| 808 | } |
| 809 | } |
| 810 | |
| 811 | /* resubmit if we need to, else mark this as done */ |
| 812 | if ((status == 0) && (ctx->pending < ctx->count)) { |
Christoph Lameter | 54e6ecb | 2006-12-06 20:33:16 -0800 | [diff] [blame] | 813 | if ((status = usb_submit_urb (urb, GFP_ATOMIC)) != 0) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 814 | ERROR(ctx->dev, |
| 815 | "can't resubmit ctrl %02x.%02x, err %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | reqp->bRequestType, reqp->bRequest, status); |
| 817 | urb->dev = NULL; |
| 818 | } else |
| 819 | ctx->pending++; |
| 820 | } else |
| 821 | urb->dev = NULL; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 822 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | /* signal completion when nothing's queued */ |
| 824 | if (ctx->pending == 0) |
| 825 | complete (&ctx->complete); |
| 826 | spin_unlock (&ctx->lock); |
| 827 | } |
| 828 | |
| 829 | static int |
| 830 | test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param) |
| 831 | { |
| 832 | struct usb_device *udev = testdev_to_usbdev (dev); |
| 833 | struct urb **urb; |
| 834 | struct ctrl_ctx context; |
| 835 | int i; |
| 836 | |
| 837 | spin_lock_init (&context.lock); |
| 838 | context.dev = dev; |
| 839 | init_completion (&context.complete); |
| 840 | context.count = param->sglen * param->iterations; |
| 841 | context.pending = 0; |
| 842 | context.status = -ENOMEM; |
| 843 | context.param = param; |
| 844 | context.last = -1; |
| 845 | |
| 846 | /* allocate and init the urbs we'll queue. |
| 847 | * as with bulk/intr sglists, sglen is the queue depth; it also |
| 848 | * controls which subtests run (more tests than sglen) or rerun. |
| 849 | */ |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 850 | urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | if (!urb) |
| 852 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 853 | for (i = 0; i < param->sglen; i++) { |
| 854 | int pipe = usb_rcvctrlpipe (udev, 0); |
| 855 | unsigned len; |
| 856 | struct urb *u; |
| 857 | struct usb_ctrlrequest req; |
| 858 | struct subcase *reqp; |
| 859 | int expected = 0; |
| 860 | |
| 861 | /* requests here are mostly expected to succeed on any |
| 862 | * device, but some are chosen to trigger protocol stalls |
| 863 | * or short reads. |
| 864 | */ |
| 865 | memset (&req, 0, sizeof req); |
| 866 | req.bRequest = USB_REQ_GET_DESCRIPTOR; |
| 867 | req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; |
| 868 | |
| 869 | switch (i % NUM_SUBCASES) { |
| 870 | case 0: // get device descriptor |
| 871 | req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8); |
| 872 | len = sizeof (struct usb_device_descriptor); |
| 873 | break; |
| 874 | case 1: // get first config descriptor (only) |
| 875 | req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); |
| 876 | len = sizeof (struct usb_config_descriptor); |
| 877 | break; |
| 878 | case 2: // get altsetting (OFTEN STALLS) |
| 879 | req.bRequest = USB_REQ_GET_INTERFACE; |
| 880 | req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; |
| 881 | // index = 0 means first interface |
| 882 | len = 1; |
| 883 | expected = EPIPE; |
| 884 | break; |
| 885 | case 3: // get interface status |
| 886 | req.bRequest = USB_REQ_GET_STATUS; |
| 887 | req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; |
| 888 | // interface 0 |
| 889 | len = 2; |
| 890 | break; |
| 891 | case 4: // get device status |
| 892 | req.bRequest = USB_REQ_GET_STATUS; |
| 893 | req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; |
| 894 | len = 2; |
| 895 | break; |
| 896 | case 5: // get device qualifier (MAY STALL) |
| 897 | req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8); |
| 898 | len = sizeof (struct usb_qualifier_descriptor); |
| 899 | if (udev->speed != USB_SPEED_HIGH) |
| 900 | expected = EPIPE; |
| 901 | break; |
| 902 | case 6: // get first config descriptor, plus interface |
| 903 | req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); |
| 904 | len = sizeof (struct usb_config_descriptor); |
| 905 | len += sizeof (struct usb_interface_descriptor); |
| 906 | break; |
| 907 | case 7: // get interface descriptor (ALWAYS STALLS) |
| 908 | req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8); |
| 909 | // interface == 0 |
| 910 | len = sizeof (struct usb_interface_descriptor); |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 911 | expected = -EPIPE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | break; |
| 913 | // NOTE: two consecutive stalls in the queue here. |
| 914 | // that tests fault recovery a bit more aggressively. |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 915 | case 8: // clear endpoint halt (MAY STALL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | req.bRequest = USB_REQ_CLEAR_FEATURE; |
| 917 | req.bRequestType = USB_RECIP_ENDPOINT; |
| 918 | // wValue 0 == ep halt |
| 919 | // wIndex 0 == ep0 (shouldn't halt!) |
| 920 | len = 0; |
| 921 | pipe = usb_sndctrlpipe (udev, 0); |
| 922 | expected = EPIPE; |
| 923 | break; |
| 924 | case 9: // get endpoint status |
| 925 | req.bRequest = USB_REQ_GET_STATUS; |
| 926 | req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT; |
| 927 | // endpoint 0 |
| 928 | len = 2; |
| 929 | break; |
| 930 | case 10: // trigger short read (EREMOTEIO) |
| 931 | req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); |
| 932 | len = 1024; |
| 933 | expected = -EREMOTEIO; |
| 934 | break; |
| 935 | // NOTE: two consecutive _different_ faults in the queue. |
| 936 | case 11: // get endpoint descriptor (ALWAYS STALLS) |
| 937 | req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8); |
| 938 | // endpoint == 0 |
| 939 | len = sizeof (struct usb_interface_descriptor); |
| 940 | expected = EPIPE; |
| 941 | break; |
| 942 | // NOTE: sometimes even a third fault in the queue! |
| 943 | case 12: // get string 0 descriptor (MAY STALL) |
| 944 | req.wValue = cpu_to_le16 (USB_DT_STRING << 8); |
| 945 | // string == 0, for language IDs |
| 946 | len = sizeof (struct usb_interface_descriptor); |
| 947 | // may succeed when > 4 languages |
| 948 | expected = EREMOTEIO; // or EPIPE, if no strings |
| 949 | break; |
| 950 | case 13: // short read, resembling case 10 |
| 951 | req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); |
| 952 | // last data packet "should" be DATA1, not DATA0 |
| 953 | len = 1024 - udev->descriptor.bMaxPacketSize0; |
| 954 | expected = -EREMOTEIO; |
| 955 | break; |
| 956 | case 14: // short read; try to fill the last packet |
| 957 | req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0); |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 958 | /* device descriptor size == 18 bytes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 959 | len = udev->descriptor.bMaxPacketSize0; |
| 960 | switch (len) { |
| 961 | case 8: len = 24; break; |
| 962 | case 16: len = 32; break; |
| 963 | } |
| 964 | expected = -EREMOTEIO; |
| 965 | break; |
| 966 | default: |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 967 | ERROR(dev, "bogus number of ctrl queue testcases!\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | context.status = -EINVAL; |
| 969 | goto cleanup; |
| 970 | } |
| 971 | req.wLength = cpu_to_le16 (len); |
| 972 | urb [i] = u = simple_alloc_urb (udev, pipe, len); |
| 973 | if (!u) |
| 974 | goto cleanup; |
| 975 | |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 976 | reqp = usb_buffer_alloc (udev, sizeof *reqp, GFP_KERNEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 977 | &u->setup_dma); |
| 978 | if (!reqp) |
| 979 | goto cleanup; |
| 980 | reqp->setup = req; |
| 981 | reqp->number = i % NUM_SUBCASES; |
| 982 | reqp->expected = expected; |
| 983 | u->setup_packet = (char *) &reqp->setup; |
Alan Stern | 3e8a556 | 2005-10-18 10:08:31 -0400 | [diff] [blame] | 984 | u->transfer_flags |= URB_NO_SETUP_DMA_MAP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 985 | |
| 986 | u->context = &context; |
| 987 | u->complete = ctrl_complete; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 988 | } |
| 989 | |
| 990 | /* queue the urbs */ |
| 991 | context.urb = urb; |
| 992 | spin_lock_irq (&context.lock); |
| 993 | for (i = 0; i < param->sglen; i++) { |
Christoph Lameter | 54e6ecb | 2006-12-06 20:33:16 -0800 | [diff] [blame] | 994 | context.status = usb_submit_urb (urb [i], GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 995 | if (context.status != 0) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 996 | ERROR(dev, "can't submit urb[%d], status %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 997 | i, context.status); |
| 998 | context.count = context.pending; |
| 999 | break; |
| 1000 | } |
| 1001 | context.pending++; |
| 1002 | } |
| 1003 | spin_unlock_irq (&context.lock); |
| 1004 | |
| 1005 | /* FIXME set timer and time out; provide a disconnect hook */ |
| 1006 | |
| 1007 | /* wait for the last one to complete */ |
| 1008 | if (context.pending > 0) |
| 1009 | wait_for_completion (&context.complete); |
| 1010 | |
| 1011 | cleanup: |
| 1012 | for (i = 0; i < param->sglen; i++) { |
| 1013 | if (!urb [i]) |
| 1014 | continue; |
| 1015 | urb [i]->dev = udev; |
| 1016 | if (urb [i]->setup_packet) |
| 1017 | usb_buffer_free (udev, sizeof (struct usb_ctrlrequest), |
| 1018 | urb [i]->setup_packet, |
| 1019 | urb [i]->setup_dma); |
| 1020 | simple_free_urb (urb [i]); |
| 1021 | } |
| 1022 | kfree (urb); |
| 1023 | return context.status; |
| 1024 | } |
| 1025 | #undef NUM_SUBCASES |
| 1026 | |
| 1027 | |
| 1028 | /*-------------------------------------------------------------------------*/ |
| 1029 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1030 | static void unlink1_callback (struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1031 | { |
| 1032 | int status = urb->status; |
| 1033 | |
| 1034 | // we "know" -EPIPE (stall) never happens |
| 1035 | if (!status) |
Christoph Lameter | 54e6ecb | 2006-12-06 20:33:16 -0800 | [diff] [blame] | 1036 | status = usb_submit_urb (urb, GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1037 | if (status) { |
| 1038 | urb->status = status; |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1039 | complete(urb->context); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1040 | } |
| 1041 | } |
| 1042 | |
| 1043 | static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async) |
| 1044 | { |
| 1045 | struct urb *urb; |
| 1046 | struct completion completion; |
| 1047 | int retval = 0; |
| 1048 | |
| 1049 | init_completion (&completion); |
| 1050 | urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size); |
| 1051 | if (!urb) |
| 1052 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1053 | urb->context = &completion; |
| 1054 | urb->complete = unlink1_callback; |
| 1055 | |
| 1056 | /* keep the endpoint busy. there are lots of hc/hcd-internal |
| 1057 | * states, and testing should get to all of them over time. |
| 1058 | * |
| 1059 | * FIXME want additional tests for when endpoint is STALLing |
| 1060 | * due to errors, or is just NAKing requests. |
| 1061 | */ |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 1062 | if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1063 | dev_err(&dev->intf->dev, "submit fail %d\n", retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1064 | return retval; |
| 1065 | } |
| 1066 | |
| 1067 | /* unlinking that should always work. variable delay tests more |
| 1068 | * hcd states and code paths, even with little other system load. |
| 1069 | */ |
| 1070 | msleep (jiffies % (2 * INTERRUPT_RATE)); |
| 1071 | if (async) { |
| 1072 | retry: |
| 1073 | retval = usb_unlink_urb (urb); |
| 1074 | if (retval == -EBUSY || retval == -EIDRM) { |
| 1075 | /* we can't unlink urbs while they're completing. |
| 1076 | * or if they've completed, and we haven't resubmitted. |
| 1077 | * "normal" drivers would prevent resubmission, but |
| 1078 | * since we're testing unlink paths, we can't. |
| 1079 | */ |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1080 | ERROR(dev, "unlink retry\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1081 | goto retry; |
| 1082 | } |
| 1083 | } else |
| 1084 | usb_kill_urb (urb); |
| 1085 | if (!(retval == 0 || retval == -EINPROGRESS)) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1086 | dev_err(&dev->intf->dev, "unlink fail %d\n", retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1087 | return retval; |
| 1088 | } |
| 1089 | |
| 1090 | wait_for_completion (&completion); |
| 1091 | retval = urb->status; |
| 1092 | simple_free_urb (urb); |
| 1093 | |
| 1094 | if (async) |
| 1095 | return (retval == -ECONNRESET) ? 0 : retval - 1000; |
| 1096 | else |
| 1097 | return (retval == -ENOENT || retval == -EPERM) ? |
| 1098 | 0 : retval - 2000; |
| 1099 | } |
| 1100 | |
| 1101 | static int unlink_simple (struct usbtest_dev *dev, int pipe, int len) |
| 1102 | { |
| 1103 | int retval = 0; |
| 1104 | |
| 1105 | /* test sync and async paths */ |
| 1106 | retval = unlink1 (dev, pipe, len, 1); |
| 1107 | if (!retval) |
| 1108 | retval = unlink1 (dev, pipe, len, 0); |
| 1109 | return retval; |
| 1110 | } |
| 1111 | |
| 1112 | /*-------------------------------------------------------------------------*/ |
| 1113 | |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1114 | static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1115 | { |
| 1116 | int retval; |
| 1117 | u16 status; |
| 1118 | |
| 1119 | /* shouldn't look or act halted */ |
| 1120 | retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); |
| 1121 | if (retval < 0) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1122 | ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n", |
| 1123 | ep, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1124 | return retval; |
| 1125 | } |
| 1126 | if (status != 0) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1127 | ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1128 | return -EINVAL; |
| 1129 | } |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1130 | retval = simple_io(tdev, urb, 1, 0, 0, __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1131 | if (retval != 0) |
| 1132 | return -EINVAL; |
| 1133 | return 0; |
| 1134 | } |
| 1135 | |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1136 | static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1137 | { |
| 1138 | int retval; |
| 1139 | u16 status; |
| 1140 | |
| 1141 | /* should look and act halted */ |
| 1142 | retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); |
| 1143 | if (retval < 0) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1144 | ERROR(tdev, "ep %02x couldn't get halt status, %d\n", |
| 1145 | ep, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1146 | return retval; |
| 1147 | } |
Jan Andersson | 6ce4560 | 2008-01-08 16:39:49 +0100 | [diff] [blame] | 1148 | le16_to_cpus(&status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1149 | if (status != 1) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1150 | ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1151 | return -EINVAL; |
| 1152 | } |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1153 | retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1154 | if (retval != -EPIPE) |
| 1155 | return -EINVAL; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1156 | retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1157 | if (retval != -EPIPE) |
| 1158 | return -EINVAL; |
| 1159 | return 0; |
| 1160 | } |
| 1161 | |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1162 | static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1163 | { |
| 1164 | int retval; |
| 1165 | |
| 1166 | /* shouldn't look or act halted now */ |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1167 | retval = verify_not_halted(tdev, ep, urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1168 | if (retval < 0) |
| 1169 | return retval; |
| 1170 | |
| 1171 | /* set halt (protocol test only), verify it worked */ |
| 1172 | retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0), |
| 1173 | USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT, |
| 1174 | USB_ENDPOINT_HALT, ep, |
| 1175 | NULL, 0, USB_CTRL_SET_TIMEOUT); |
| 1176 | if (retval < 0) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1177 | ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1178 | return retval; |
| 1179 | } |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1180 | retval = verify_halted(tdev, ep, urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1181 | if (retval < 0) |
| 1182 | return retval; |
| 1183 | |
| 1184 | /* clear halt (tests API + protocol), verify it worked */ |
| 1185 | retval = usb_clear_halt (urb->dev, urb->pipe); |
| 1186 | if (retval < 0) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1187 | ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1188 | return retval; |
| 1189 | } |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1190 | retval = verify_not_halted(tdev, ep, urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1191 | if (retval < 0) |
| 1192 | return retval; |
| 1193 | |
| 1194 | /* NOTE: could also verify SET_INTERFACE clear halts ... */ |
| 1195 | |
| 1196 | return 0; |
| 1197 | } |
| 1198 | |
| 1199 | static int halt_simple (struct usbtest_dev *dev) |
| 1200 | { |
| 1201 | int ep; |
| 1202 | int retval = 0; |
| 1203 | struct urb *urb; |
| 1204 | |
| 1205 | urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512); |
| 1206 | if (urb == NULL) |
| 1207 | return -ENOMEM; |
| 1208 | |
| 1209 | if (dev->in_pipe) { |
| 1210 | ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN; |
| 1211 | urb->pipe = dev->in_pipe; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1212 | retval = test_halt(dev, ep, urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1213 | if (retval < 0) |
| 1214 | goto done; |
| 1215 | } |
| 1216 | |
| 1217 | if (dev->out_pipe) { |
| 1218 | ep = usb_pipeendpoint (dev->out_pipe); |
| 1219 | urb->pipe = dev->out_pipe; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1220 | retval = test_halt(dev, ep, urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1221 | } |
| 1222 | done: |
| 1223 | simple_free_urb (urb); |
| 1224 | return retval; |
| 1225 | } |
| 1226 | |
| 1227 | /*-------------------------------------------------------------------------*/ |
| 1228 | |
| 1229 | /* Control OUT tests use the vendor control requests from Intel's |
| 1230 | * USB 2.0 compliance test device: write a buffer, read it back. |
| 1231 | * |
| 1232 | * Intel's spec only _requires_ that it work for one packet, which |
| 1233 | * is pretty weak. Some HCDs place limits here; most devices will |
| 1234 | * need to be able to handle more than one OUT data packet. We'll |
| 1235 | * try whatever we're told to try. |
| 1236 | */ |
| 1237 | static int ctrl_out (struct usbtest_dev *dev, |
| 1238 | unsigned count, unsigned length, unsigned vary) |
| 1239 | { |
Orjan Friberg | f54fa84 | 2006-08-08 23:31:40 -0700 | [diff] [blame] | 1240 | unsigned i, j, len; |
| 1241 | int retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1242 | u8 *buf; |
| 1243 | char *what = "?"; |
| 1244 | struct usb_device *udev; |
Orjan Friberg | f54fa84 | 2006-08-08 23:31:40 -0700 | [diff] [blame] | 1245 | |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 1246 | if (length < 1 || length > 0xffff || vary >= length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1247 | return -EINVAL; |
| 1248 | |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 1249 | buf = kmalloc(length, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1250 | if (!buf) |
| 1251 | return -ENOMEM; |
| 1252 | |
| 1253 | udev = testdev_to_usbdev (dev); |
| 1254 | len = length; |
| 1255 | retval = 0; |
| 1256 | |
| 1257 | /* NOTE: hardware might well act differently if we pushed it |
| 1258 | * with lots back-to-back queued requests. |
| 1259 | */ |
| 1260 | for (i = 0; i < count; i++) { |
| 1261 | /* write patterned data */ |
| 1262 | for (j = 0; j < len; j++) |
| 1263 | buf [j] = i + j; |
| 1264 | retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0), |
| 1265 | 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR, |
| 1266 | 0, 0, buf, len, USB_CTRL_SET_TIMEOUT); |
| 1267 | if (retval != len) { |
| 1268 | what = "write"; |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 1269 | if (retval >= 0) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1270 | ERROR(dev, "ctrl_out, wlen %d (expected %d)\n", |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 1271 | retval, len); |
| 1272 | retval = -EBADMSG; |
| 1273 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1274 | break; |
| 1275 | } |
| 1276 | |
| 1277 | /* read it back -- assuming nothing intervened!! */ |
| 1278 | retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0), |
| 1279 | 0x5c, USB_DIR_IN|USB_TYPE_VENDOR, |
| 1280 | 0, 0, buf, len, USB_CTRL_GET_TIMEOUT); |
| 1281 | if (retval != len) { |
| 1282 | what = "read"; |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 1283 | if (retval >= 0) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1284 | ERROR(dev, "ctrl_out, rlen %d (expected %d)\n", |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 1285 | retval, len); |
| 1286 | retval = -EBADMSG; |
| 1287 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1288 | break; |
| 1289 | } |
| 1290 | |
| 1291 | /* fail if we can't verify */ |
| 1292 | for (j = 0; j < len; j++) { |
| 1293 | if (buf [j] != (u8) (i + j)) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1294 | ERROR(dev, "ctrl_out, byte %d is %d not %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1295 | j, buf [j], (u8) i + j); |
| 1296 | retval = -EBADMSG; |
| 1297 | break; |
| 1298 | } |
| 1299 | } |
| 1300 | if (retval < 0) { |
| 1301 | what = "verify"; |
| 1302 | break; |
| 1303 | } |
| 1304 | |
| 1305 | len += vary; |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 1306 | |
| 1307 | /* [real world] the "zero bytes IN" case isn't really used. |
Joe Perches | dc0d5c1 | 2007-12-17 11:40:18 -0800 | [diff] [blame] | 1308 | * hardware can easily trip up in this weird case, since its |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 1309 | * status stage is IN, not OUT like other ep0in transfers. |
| 1310 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1311 | if (len > length) |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 1312 | len = realworld ? 1 : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1313 | } |
| 1314 | |
| 1315 | if (retval < 0) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1316 | ERROR (dev, "ctrl_out %s failed, code %d, count %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1317 | what, retval, i); |
| 1318 | |
| 1319 | kfree (buf); |
| 1320 | return retval; |
| 1321 | } |
| 1322 | |
| 1323 | /*-------------------------------------------------------------------------*/ |
| 1324 | |
| 1325 | /* ISO tests ... mimics common usage |
| 1326 | * - buffer length is split into N packets (mostly maxpacket sized) |
| 1327 | * - multi-buffers according to sglen |
| 1328 | */ |
| 1329 | |
| 1330 | struct iso_context { |
| 1331 | unsigned count; |
| 1332 | unsigned pending; |
| 1333 | spinlock_t lock; |
| 1334 | struct completion done; |
Alan Stern | 9da2150 | 2006-05-22 16:47:13 -0400 | [diff] [blame] | 1335 | int submit_error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1336 | unsigned long errors; |
Alan Stern | 9da2150 | 2006-05-22 16:47:13 -0400 | [diff] [blame] | 1337 | unsigned long packet_count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1338 | struct usbtest_dev *dev; |
| 1339 | }; |
| 1340 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1341 | static void iso_callback (struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1342 | { |
| 1343 | struct iso_context *ctx = urb->context; |
| 1344 | |
| 1345 | spin_lock(&ctx->lock); |
| 1346 | ctx->count--; |
| 1347 | |
Alan Stern | 9da2150 | 2006-05-22 16:47:13 -0400 | [diff] [blame] | 1348 | ctx->packet_count += urb->number_of_packets; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1349 | if (urb->error_count > 0) |
| 1350 | ctx->errors += urb->error_count; |
Alan Stern | 9da2150 | 2006-05-22 16:47:13 -0400 | [diff] [blame] | 1351 | else if (urb->status != 0) |
| 1352 | ctx->errors += urb->number_of_packets; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1353 | |
Alan Stern | 9da2150 | 2006-05-22 16:47:13 -0400 | [diff] [blame] | 1354 | if (urb->status == 0 && ctx->count > (ctx->pending - 1) |
| 1355 | && !ctx->submit_error) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1356 | int status = usb_submit_urb (urb, GFP_ATOMIC); |
| 1357 | switch (status) { |
| 1358 | case 0: |
| 1359 | goto done; |
| 1360 | default: |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1361 | dev_err(&ctx->dev->intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1362 | "iso resubmit err %d\n", |
| 1363 | status); |
| 1364 | /* FALLTHROUGH */ |
| 1365 | case -ENODEV: /* disconnected */ |
Alan Stern | 9da2150 | 2006-05-22 16:47:13 -0400 | [diff] [blame] | 1366 | case -ESHUTDOWN: /* endpoint disabled */ |
| 1367 | ctx->submit_error = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1368 | break; |
| 1369 | } |
| 1370 | } |
| 1371 | simple_free_urb (urb); |
| 1372 | |
| 1373 | ctx->pending--; |
| 1374 | if (ctx->pending == 0) { |
| 1375 | if (ctx->errors) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1376 | dev_err(&ctx->dev->intf->dev, |
Alan Stern | 9da2150 | 2006-05-22 16:47:13 -0400 | [diff] [blame] | 1377 | "iso test, %lu errors out of %lu\n", |
| 1378 | ctx->errors, ctx->packet_count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1379 | complete (&ctx->done); |
| 1380 | } |
| 1381 | done: |
| 1382 | spin_unlock(&ctx->lock); |
| 1383 | } |
| 1384 | |
| 1385 | static struct urb *iso_alloc_urb ( |
| 1386 | struct usb_device *udev, |
| 1387 | int pipe, |
| 1388 | struct usb_endpoint_descriptor *desc, |
| 1389 | long bytes |
| 1390 | ) |
| 1391 | { |
| 1392 | struct urb *urb; |
| 1393 | unsigned i, maxp, packets; |
| 1394 | |
| 1395 | if (bytes < 0 || !desc) |
| 1396 | return NULL; |
| 1397 | maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize); |
| 1398 | maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11)); |
Julia Lawall | dfa5ec7 | 2008-03-04 15:25:11 -0800 | [diff] [blame] | 1399 | packets = DIV_ROUND_UP(bytes, maxp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1400 | |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 1401 | urb = usb_alloc_urb (packets, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | if (!urb) |
| 1403 | return urb; |
| 1404 | urb->dev = udev; |
| 1405 | urb->pipe = pipe; |
| 1406 | |
| 1407 | urb->number_of_packets = packets; |
| 1408 | urb->transfer_buffer_length = bytes; |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 1409 | urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1410 | &urb->transfer_dma); |
| 1411 | if (!urb->transfer_buffer) { |
| 1412 | usb_free_urb (urb); |
| 1413 | return NULL; |
| 1414 | } |
| 1415 | memset (urb->transfer_buffer, 0, bytes); |
| 1416 | for (i = 0; i < packets; i++) { |
| 1417 | /* here, only the last packet will be short */ |
| 1418 | urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp); |
| 1419 | bytes -= urb->iso_frame_desc[i].length; |
| 1420 | |
| 1421 | urb->iso_frame_desc[i].offset = maxp * i; |
| 1422 | } |
| 1423 | |
| 1424 | urb->complete = iso_callback; |
| 1425 | // urb->context = SET BY CALLER |
| 1426 | urb->interval = 1 << (desc->bInterval - 1); |
| 1427 | urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; |
| 1428 | return urb; |
| 1429 | } |
| 1430 | |
| 1431 | static int |
| 1432 | test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param, |
| 1433 | int pipe, struct usb_endpoint_descriptor *desc) |
| 1434 | { |
| 1435 | struct iso_context context; |
| 1436 | struct usb_device *udev; |
| 1437 | unsigned i; |
| 1438 | unsigned long packets = 0; |
Alan Stern | 9da2150 | 2006-05-22 16:47:13 -0400 | [diff] [blame] | 1439 | int status = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1440 | struct urb *urbs[10]; /* FIXME no limit */ |
| 1441 | |
| 1442 | if (param->sglen > 10) |
| 1443 | return -EDOM; |
| 1444 | |
Alan Stern | 9da2150 | 2006-05-22 16:47:13 -0400 | [diff] [blame] | 1445 | memset(&context, 0, sizeof context); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1446 | context.count = param->iterations * param->sglen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1447 | context.dev = dev; |
| 1448 | init_completion (&context.done); |
| 1449 | spin_lock_init (&context.lock); |
| 1450 | |
| 1451 | memset (urbs, 0, sizeof urbs); |
| 1452 | udev = testdev_to_usbdev (dev); |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1453 | dev_info(&dev->intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1454 | "... iso period %d %sframes, wMaxPacket %04x\n", |
| 1455 | 1 << (desc->bInterval - 1), |
| 1456 | (udev->speed == USB_SPEED_HIGH) ? "micro" : "", |
| 1457 | le16_to_cpu(desc->wMaxPacketSize)); |
| 1458 | |
| 1459 | for (i = 0; i < param->sglen; i++) { |
| 1460 | urbs [i] = iso_alloc_urb (udev, pipe, desc, |
| 1461 | param->length); |
| 1462 | if (!urbs [i]) { |
| 1463 | status = -ENOMEM; |
| 1464 | goto fail; |
| 1465 | } |
| 1466 | packets += urbs[i]->number_of_packets; |
| 1467 | urbs [i]->context = &context; |
| 1468 | } |
| 1469 | packets *= param->iterations; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1470 | dev_info(&dev->intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1471 | "... total %lu msec (%lu packets)\n", |
| 1472 | (packets * (1 << (desc->bInterval - 1))) |
| 1473 | / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1), |
| 1474 | packets); |
| 1475 | |
| 1476 | spin_lock_irq (&context.lock); |
| 1477 | for (i = 0; i < param->sglen; i++) { |
Alan Stern | 9da2150 | 2006-05-22 16:47:13 -0400 | [diff] [blame] | 1478 | ++context.pending; |
Christoph Lameter | 54e6ecb | 2006-12-06 20:33:16 -0800 | [diff] [blame] | 1479 | status = usb_submit_urb (urbs [i], GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1480 | if (status < 0) { |
| 1481 | ERROR (dev, "submit iso[%d], error %d\n", i, status); |
| 1482 | if (i == 0) { |
| 1483 | spin_unlock_irq (&context.lock); |
| 1484 | goto fail; |
| 1485 | } |
| 1486 | |
| 1487 | simple_free_urb (urbs [i]); |
| 1488 | context.pending--; |
Alan Stern | 9da2150 | 2006-05-22 16:47:13 -0400 | [diff] [blame] | 1489 | context.submit_error = 1; |
| 1490 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1491 | } |
| 1492 | } |
| 1493 | spin_unlock_irq (&context.lock); |
| 1494 | |
| 1495 | wait_for_completion (&context.done); |
Alan Stern | 9da2150 | 2006-05-22 16:47:13 -0400 | [diff] [blame] | 1496 | |
| 1497 | /* |
| 1498 | * Isochronous transfers are expected to fail sometimes. As an |
| 1499 | * arbitrary limit, we will report an error if any submissions |
| 1500 | * fail or if the transfer failure rate is > 10%. |
| 1501 | */ |
| 1502 | if (status != 0) |
| 1503 | ; |
| 1504 | else if (context.submit_error) |
| 1505 | status = -EACCES; |
| 1506 | else if (context.errors > context.packet_count / 10) |
| 1507 | status = -EIO; |
| 1508 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1509 | |
| 1510 | fail: |
| 1511 | for (i = 0; i < param->sglen; i++) { |
| 1512 | if (urbs [i]) |
| 1513 | simple_free_urb (urbs [i]); |
| 1514 | } |
| 1515 | return status; |
| 1516 | } |
| 1517 | |
| 1518 | /*-------------------------------------------------------------------------*/ |
| 1519 | |
| 1520 | /* We only have this one interface to user space, through usbfs. |
| 1521 | * User mode code can scan usbfs to find N different devices (maybe on |
| 1522 | * different busses) to use when testing, and allocate one thread per |
| 1523 | * test. So discovery is simplified, and we have no device naming issues. |
| 1524 | * |
| 1525 | * Don't use these only as stress/load tests. Use them along with with |
| 1526 | * other USB bus activity: plugging, unplugging, mousing, mp3 playback, |
| 1527 | * video capture, and so on. Run different tests at different times, in |
| 1528 | * different sequences. Nothing here should interact with other devices, |
| 1529 | * except indirectly by consuming USB bandwidth and CPU resources for test |
| 1530 | * threads and request completion. But the only way to know that for sure |
| 1531 | * is to test when HC queues are in use by many devices. |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1532 | * |
| 1533 | * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(), |
| 1534 | * it locks out usbcore in certain code paths. Notably, if you disconnect |
| 1535 | * the device-under-test, khubd will wait block forever waiting for the |
| 1536 | * ioctl to complete ... so that usb_disconnect() can abort the pending |
| 1537 | * urbs and then call usbtest_disconnect(). To abort a test, you're best |
| 1538 | * off just killing the userspace task and waiting for it to exit. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1539 | */ |
| 1540 | |
| 1541 | static int |
| 1542 | usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf) |
| 1543 | { |
| 1544 | struct usbtest_dev *dev = usb_get_intfdata (intf); |
| 1545 | struct usb_device *udev = testdev_to_usbdev (dev); |
| 1546 | struct usbtest_param *param = buf; |
| 1547 | int retval = -EOPNOTSUPP; |
| 1548 | struct urb *urb; |
| 1549 | struct scatterlist *sg; |
| 1550 | struct usb_sg_request req; |
| 1551 | struct timeval start; |
| 1552 | unsigned i; |
| 1553 | |
| 1554 | // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. |
| 1555 | |
| 1556 | if (code != USBTEST_REQUEST) |
| 1557 | return -EOPNOTSUPP; |
| 1558 | |
| 1559 | if (param->iterations <= 0 || param->length < 0 |
| 1560 | || param->sglen < 0 || param->vary < 0) |
| 1561 | return -EINVAL; |
| 1562 | |
Matthias Kaehlcke | 1cfab02 | 2007-12-13 16:15:33 -0800 | [diff] [blame] | 1563 | if (mutex_lock_interruptible(&dev->lock)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1564 | return -ERESTARTSYS; |
| 1565 | |
Alan Stern | 70a1c9e | 2008-03-06 17:00:58 -0500 | [diff] [blame] | 1566 | /* FIXME: What if a system sleep starts while a test is running? */ |
| 1567 | if (!intf->is_active) { |
Matthias Kaehlcke | 1cfab02 | 2007-12-13 16:15:33 -0800 | [diff] [blame] | 1568 | mutex_unlock(&dev->lock); |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 1569 | return -EHOSTUNREACH; |
| 1570 | } |
| 1571 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1572 | /* some devices, like ez-usb default devices, need a non-default |
| 1573 | * altsetting to have any active endpoints. some tests change |
| 1574 | * altsettings; force a default so most tests don't need to check. |
| 1575 | */ |
| 1576 | if (dev->info->alt >= 0) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1577 | int res; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1578 | |
| 1579 | if (intf->altsetting->desc.bInterfaceNumber) { |
Matthias Kaehlcke | 1cfab02 | 2007-12-13 16:15:33 -0800 | [diff] [blame] | 1580 | mutex_unlock(&dev->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1581 | return -ENODEV; |
| 1582 | } |
| 1583 | res = set_altsetting (dev, dev->info->alt); |
| 1584 | if (res) { |
| 1585 | dev_err (&intf->dev, |
| 1586 | "set altsetting to %d failed, %d\n", |
| 1587 | dev->info->alt, res); |
Matthias Kaehlcke | 1cfab02 | 2007-12-13 16:15:33 -0800 | [diff] [blame] | 1588 | mutex_unlock(&dev->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1589 | return res; |
| 1590 | } |
| 1591 | } |
| 1592 | |
| 1593 | /* |
| 1594 | * Just a bunch of test cases that every HCD is expected to handle. |
| 1595 | * |
| 1596 | * Some may need specific firmware, though it'd be good to have |
| 1597 | * one firmware image to handle all the test cases. |
| 1598 | * |
| 1599 | * FIXME add more tests! cancel requests, verify the data, control |
| 1600 | * queueing, concurrent read+write threads, and so on. |
| 1601 | */ |
| 1602 | do_gettimeofday (&start); |
| 1603 | switch (param->test_num) { |
| 1604 | |
| 1605 | case 0: |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1606 | dev_info(&intf->dev, "TEST 0: NOP\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1607 | retval = 0; |
| 1608 | break; |
| 1609 | |
| 1610 | /* Simple non-queued bulk I/O tests */ |
| 1611 | case 1: |
| 1612 | if (dev->out_pipe == 0) |
| 1613 | break; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1614 | dev_info(&intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1615 | "TEST 1: write %d bytes %u times\n", |
| 1616 | param->length, param->iterations); |
| 1617 | urb = simple_alloc_urb (udev, dev->out_pipe, param->length); |
| 1618 | if (!urb) { |
| 1619 | retval = -ENOMEM; |
| 1620 | break; |
| 1621 | } |
| 1622 | // FIRMWARE: bulk sink (maybe accepts short writes) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1623 | retval = simple_io(dev, urb, param->iterations, 0, 0, "test1"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1624 | simple_free_urb (urb); |
| 1625 | break; |
| 1626 | case 2: |
| 1627 | if (dev->in_pipe == 0) |
| 1628 | break; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1629 | dev_info(&intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1630 | "TEST 2: read %d bytes %u times\n", |
| 1631 | param->length, param->iterations); |
| 1632 | urb = simple_alloc_urb (udev, dev->in_pipe, param->length); |
| 1633 | if (!urb) { |
| 1634 | retval = -ENOMEM; |
| 1635 | break; |
| 1636 | } |
| 1637 | // FIRMWARE: bulk source (maybe generates short writes) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1638 | retval = simple_io(dev, urb, param->iterations, 0, 0, "test2"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1639 | simple_free_urb (urb); |
| 1640 | break; |
| 1641 | case 3: |
| 1642 | if (dev->out_pipe == 0 || param->vary == 0) |
| 1643 | break; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1644 | dev_info(&intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1645 | "TEST 3: write/%d 0..%d bytes %u times\n", |
| 1646 | param->vary, param->length, param->iterations); |
| 1647 | urb = simple_alloc_urb (udev, dev->out_pipe, param->length); |
| 1648 | if (!urb) { |
| 1649 | retval = -ENOMEM; |
| 1650 | break; |
| 1651 | } |
| 1652 | // FIRMWARE: bulk sink (maybe accepts short writes) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1653 | retval = simple_io(dev, urb, param->iterations, param->vary, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1654 | 0, "test3"); |
| 1655 | simple_free_urb (urb); |
| 1656 | break; |
| 1657 | case 4: |
| 1658 | if (dev->in_pipe == 0 || param->vary == 0) |
| 1659 | break; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1660 | dev_info(&intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1661 | "TEST 4: read/%d 0..%d bytes %u times\n", |
| 1662 | param->vary, param->length, param->iterations); |
| 1663 | urb = simple_alloc_urb (udev, dev->in_pipe, param->length); |
| 1664 | if (!urb) { |
| 1665 | retval = -ENOMEM; |
| 1666 | break; |
| 1667 | } |
| 1668 | // FIRMWARE: bulk source (maybe generates short writes) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1669 | retval = simple_io(dev, urb, param->iterations, param->vary, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1670 | 0, "test4"); |
| 1671 | simple_free_urb (urb); |
| 1672 | break; |
| 1673 | |
| 1674 | /* Queued bulk I/O tests */ |
| 1675 | case 5: |
| 1676 | if (dev->out_pipe == 0 || param->sglen == 0) |
| 1677 | break; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1678 | dev_info(&intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1679 | "TEST 5: write %d sglists %d entries of %d bytes\n", |
| 1680 | param->iterations, |
| 1681 | param->sglen, param->length); |
| 1682 | sg = alloc_sglist (param->sglen, param->length, 0); |
| 1683 | if (!sg) { |
| 1684 | retval = -ENOMEM; |
| 1685 | break; |
| 1686 | } |
| 1687 | // FIRMWARE: bulk sink (maybe accepts short writes) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1688 | retval = perform_sglist(dev, param->iterations, dev->out_pipe, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1689 | &req, sg, param->sglen); |
| 1690 | free_sglist (sg, param->sglen); |
| 1691 | break; |
| 1692 | |
| 1693 | case 6: |
| 1694 | if (dev->in_pipe == 0 || param->sglen == 0) |
| 1695 | break; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1696 | dev_info(&intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1697 | "TEST 6: read %d sglists %d entries of %d bytes\n", |
| 1698 | param->iterations, |
| 1699 | param->sglen, param->length); |
| 1700 | sg = alloc_sglist (param->sglen, param->length, 0); |
| 1701 | if (!sg) { |
| 1702 | retval = -ENOMEM; |
| 1703 | break; |
| 1704 | } |
| 1705 | // FIRMWARE: bulk source (maybe generates short writes) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1706 | retval = perform_sglist(dev, param->iterations, dev->in_pipe, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1707 | &req, sg, param->sglen); |
| 1708 | free_sglist (sg, param->sglen); |
| 1709 | break; |
| 1710 | case 7: |
| 1711 | if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0) |
| 1712 | break; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1713 | dev_info(&intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1714 | "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n", |
| 1715 | param->vary, param->iterations, |
| 1716 | param->sglen, param->length); |
| 1717 | sg = alloc_sglist (param->sglen, param->length, param->vary); |
| 1718 | if (!sg) { |
| 1719 | retval = -ENOMEM; |
| 1720 | break; |
| 1721 | } |
| 1722 | // FIRMWARE: bulk sink (maybe accepts short writes) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1723 | retval = perform_sglist(dev, param->iterations, dev->out_pipe, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1724 | &req, sg, param->sglen); |
| 1725 | free_sglist (sg, param->sglen); |
| 1726 | break; |
| 1727 | case 8: |
| 1728 | if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0) |
| 1729 | break; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1730 | dev_info(&intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1731 | "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n", |
| 1732 | param->vary, param->iterations, |
| 1733 | param->sglen, param->length); |
| 1734 | sg = alloc_sglist (param->sglen, param->length, param->vary); |
| 1735 | if (!sg) { |
| 1736 | retval = -ENOMEM; |
| 1737 | break; |
| 1738 | } |
| 1739 | // FIRMWARE: bulk source (maybe generates short writes) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1740 | retval = perform_sglist(dev, param->iterations, dev->in_pipe, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1741 | &req, sg, param->sglen); |
| 1742 | free_sglist (sg, param->sglen); |
| 1743 | break; |
| 1744 | |
| 1745 | /* non-queued sanity tests for control (chapter 9 subset) */ |
| 1746 | case 9: |
| 1747 | retval = 0; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1748 | dev_info(&intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1749 | "TEST 9: ch9 (subset) control tests, %d times\n", |
| 1750 | param->iterations); |
| 1751 | for (i = param->iterations; retval == 0 && i--; /* NOP */) |
| 1752 | retval = ch9_postconfig (dev); |
| 1753 | if (retval) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1754 | dev_err(&intf->dev, "ch9 subset failed, " |
| 1755 | "iterations left %d\n", i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1756 | break; |
| 1757 | |
| 1758 | /* queued control messaging */ |
| 1759 | case 10: |
| 1760 | if (param->sglen == 0) |
| 1761 | break; |
| 1762 | retval = 0; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1763 | dev_info(&intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1764 | "TEST 10: queue %d control calls, %d times\n", |
| 1765 | param->sglen, |
| 1766 | param->iterations); |
| 1767 | retval = test_ctrl_queue (dev, param); |
| 1768 | break; |
| 1769 | |
| 1770 | /* simple non-queued unlinks (ring with one urb) */ |
| 1771 | case 11: |
| 1772 | if (dev->in_pipe == 0 || !param->length) |
| 1773 | break; |
| 1774 | retval = 0; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1775 | dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1776 | param->iterations, param->length); |
| 1777 | for (i = param->iterations; retval == 0 && i--; /* NOP */) |
| 1778 | retval = unlink_simple (dev, dev->in_pipe, |
| 1779 | param->length); |
| 1780 | if (retval) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1781 | dev_err(&intf->dev, "unlink reads failed %d, " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1782 | "iterations left %d\n", retval, i); |
| 1783 | break; |
| 1784 | case 12: |
| 1785 | if (dev->out_pipe == 0 || !param->length) |
| 1786 | break; |
| 1787 | retval = 0; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1788 | dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1789 | param->iterations, param->length); |
| 1790 | for (i = param->iterations; retval == 0 && i--; /* NOP */) |
| 1791 | retval = unlink_simple (dev, dev->out_pipe, |
| 1792 | param->length); |
| 1793 | if (retval) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1794 | dev_err(&intf->dev, "unlink writes failed %d, " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1795 | "iterations left %d\n", retval, i); |
| 1796 | break; |
| 1797 | |
| 1798 | /* ep halt tests */ |
| 1799 | case 13: |
| 1800 | if (dev->out_pipe == 0 && dev->in_pipe == 0) |
| 1801 | break; |
| 1802 | retval = 0; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1803 | dev_info(&intf->dev, "TEST 13: set/clear %d halts\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1804 | param->iterations); |
| 1805 | for (i = param->iterations; retval == 0 && i--; /* NOP */) |
| 1806 | retval = halt_simple (dev); |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1807 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1808 | if (retval) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1809 | ERROR(dev, "halts failed, iterations left %d\n", i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1810 | break; |
| 1811 | |
| 1812 | /* control write tests */ |
| 1813 | case 14: |
| 1814 | if (!dev->info->ctrl_out) |
| 1815 | break; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1816 | dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n", |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 1817 | param->iterations, |
| 1818 | realworld ? 1 : 0, param->length, |
| 1819 | param->vary); |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1820 | retval = ctrl_out(dev, param->iterations, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1821 | param->length, param->vary); |
| 1822 | break; |
| 1823 | |
| 1824 | /* iso write tests */ |
| 1825 | case 15: |
| 1826 | if (dev->out_iso_pipe == 0 || param->sglen == 0) |
| 1827 | break; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1828 | dev_info(&intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1829 | "TEST 15: write %d iso, %d entries of %d bytes\n", |
| 1830 | param->iterations, |
| 1831 | param->sglen, param->length); |
| 1832 | // FIRMWARE: iso sink |
| 1833 | retval = test_iso_queue (dev, param, |
| 1834 | dev->out_iso_pipe, dev->iso_out); |
| 1835 | break; |
| 1836 | |
| 1837 | /* iso read tests */ |
| 1838 | case 16: |
| 1839 | if (dev->in_iso_pipe == 0 || param->sglen == 0) |
| 1840 | break; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1841 | dev_info(&intf->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1842 | "TEST 16: read %d iso, %d entries of %d bytes\n", |
| 1843 | param->iterations, |
| 1844 | param->sglen, param->length); |
| 1845 | // FIRMWARE: iso source |
| 1846 | retval = test_iso_queue (dev, param, |
| 1847 | dev->in_iso_pipe, dev->iso_in); |
| 1848 | break; |
| 1849 | |
| 1850 | // FIXME unlink from queue (ring with N urbs) |
| 1851 | |
| 1852 | // FIXME scatterlist cancel (needs helper thread) |
| 1853 | |
| 1854 | } |
| 1855 | do_gettimeofday (¶m->duration); |
| 1856 | param->duration.tv_sec -= start.tv_sec; |
| 1857 | param->duration.tv_usec -= start.tv_usec; |
| 1858 | if (param->duration.tv_usec < 0) { |
| 1859 | param->duration.tv_usec += 1000 * 1000; |
| 1860 | param->duration.tv_sec -= 1; |
| 1861 | } |
Matthias Kaehlcke | 1cfab02 | 2007-12-13 16:15:33 -0800 | [diff] [blame] | 1862 | mutex_unlock(&dev->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1863 | return retval; |
| 1864 | } |
| 1865 | |
| 1866 | /*-------------------------------------------------------------------------*/ |
| 1867 | |
| 1868 | static unsigned force_interrupt = 0; |
| 1869 | module_param (force_interrupt, uint, 0); |
| 1870 | MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt"); |
| 1871 | |
| 1872 | #ifdef GENERIC |
| 1873 | static unsigned short vendor; |
| 1874 | module_param(vendor, ushort, 0); |
| 1875 | MODULE_PARM_DESC (vendor, "vendor code (from usb-if)"); |
| 1876 | |
| 1877 | static unsigned short product; |
| 1878 | module_param(product, ushort, 0); |
| 1879 | MODULE_PARM_DESC (product, "product code (from vendor)"); |
| 1880 | #endif |
| 1881 | |
| 1882 | static int |
| 1883 | usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id) |
| 1884 | { |
| 1885 | struct usb_device *udev; |
| 1886 | struct usbtest_dev *dev; |
| 1887 | struct usbtest_info *info; |
| 1888 | char *rtest, *wtest; |
| 1889 | char *irtest, *iwtest; |
| 1890 | |
| 1891 | udev = interface_to_usbdev (intf); |
| 1892 | |
| 1893 | #ifdef GENERIC |
| 1894 | /* specify devices by module parameters? */ |
| 1895 | if (id->match_flags == 0) { |
| 1896 | /* vendor match required, product match optional */ |
| 1897 | if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor) |
| 1898 | return -ENODEV; |
| 1899 | if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product) |
| 1900 | return -ENODEV; |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1901 | dev_info(&intf->dev, "matched module params, " |
| 1902 | "vend=0x%04x prod=0x%04x\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1903 | le16_to_cpu(udev->descriptor.idVendor), |
| 1904 | le16_to_cpu(udev->descriptor.idProduct)); |
| 1905 | } |
| 1906 | #endif |
| 1907 | |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 1908 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1909 | if (!dev) |
| 1910 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1911 | info = (struct usbtest_info *) id->driver_info; |
| 1912 | dev->info = info; |
Matthias Kaehlcke | 1cfab02 | 2007-12-13 16:15:33 -0800 | [diff] [blame] | 1913 | mutex_init(&dev->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1914 | |
| 1915 | dev->intf = intf; |
| 1916 | |
| 1917 | /* cacheline-aligned scratch for i/o */ |
Christoph Lameter | e94b176 | 2006-12-06 20:33:17 -0800 | [diff] [blame] | 1918 | if ((dev->buf = kmalloc (TBUF_SIZE, GFP_KERNEL)) == NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1919 | kfree (dev); |
| 1920 | return -ENOMEM; |
| 1921 | } |
| 1922 | |
| 1923 | /* NOTE this doesn't yet test the handful of difference that are |
| 1924 | * visible with high speed interrupts: bigger maxpacket (1K) and |
| 1925 | * "high bandwidth" modes (up to 3 packets/uframe). |
| 1926 | */ |
| 1927 | rtest = wtest = ""; |
| 1928 | irtest = iwtest = ""; |
| 1929 | if (force_interrupt || udev->speed == USB_SPEED_LOW) { |
| 1930 | if (info->ep_in) { |
| 1931 | dev->in_pipe = usb_rcvintpipe (udev, info->ep_in); |
| 1932 | rtest = " intr-in"; |
| 1933 | } |
| 1934 | if (info->ep_out) { |
| 1935 | dev->out_pipe = usb_sndintpipe (udev, info->ep_out); |
| 1936 | wtest = " intr-out"; |
| 1937 | } |
| 1938 | } else { |
| 1939 | if (info->autoconf) { |
| 1940 | int status; |
| 1941 | |
| 1942 | status = get_endpoints (dev, intf); |
| 1943 | if (status < 0) { |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 1944 | WARN(dev, "couldn't get endpoints, %d\n", |
| 1945 | status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1946 | return status; |
| 1947 | } |
| 1948 | /* may find bulk or ISO pipes */ |
| 1949 | } else { |
| 1950 | if (info->ep_in) |
| 1951 | dev->in_pipe = usb_rcvbulkpipe (udev, |
| 1952 | info->ep_in); |
| 1953 | if (info->ep_out) |
| 1954 | dev->out_pipe = usb_sndbulkpipe (udev, |
| 1955 | info->ep_out); |
| 1956 | } |
| 1957 | if (dev->in_pipe) |
| 1958 | rtest = " bulk-in"; |
| 1959 | if (dev->out_pipe) |
| 1960 | wtest = " bulk-out"; |
| 1961 | if (dev->in_iso_pipe) |
| 1962 | irtest = " iso-in"; |
| 1963 | if (dev->out_iso_pipe) |
| 1964 | iwtest = " iso-out"; |
| 1965 | } |
| 1966 | |
| 1967 | usb_set_intfdata (intf, dev); |
| 1968 | dev_info (&intf->dev, "%s\n", info->name); |
| 1969 | dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n", |
| 1970 | ({ char *tmp; |
| 1971 | switch (udev->speed) { |
| 1972 | case USB_SPEED_LOW: tmp = "low"; break; |
| 1973 | case USB_SPEED_FULL: tmp = "full"; break; |
| 1974 | case USB_SPEED_HIGH: tmp = "high"; break; |
| 1975 | default: tmp = "unknown"; break; |
| 1976 | }; tmp; }), |
| 1977 | info->ctrl_out ? " in/out" : "", |
| 1978 | rtest, wtest, |
| 1979 | irtest, iwtest, |
| 1980 | info->alt >= 0 ? " (+alt)" : ""); |
| 1981 | return 0; |
| 1982 | } |
| 1983 | |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 1984 | static int usbtest_suspend (struct usb_interface *intf, pm_message_t message) |
| 1985 | { |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 1986 | return 0; |
| 1987 | } |
| 1988 | |
| 1989 | static int usbtest_resume (struct usb_interface *intf) |
| 1990 | { |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 1991 | return 0; |
| 1992 | } |
| 1993 | |
| 1994 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1995 | static void usbtest_disconnect (struct usb_interface *intf) |
| 1996 | { |
| 1997 | struct usbtest_dev *dev = usb_get_intfdata (intf); |
| 1998 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1999 | usb_set_intfdata (intf, NULL); |
| 2000 | dev_dbg (&intf->dev, "disconnect\n"); |
| 2001 | kfree (dev); |
| 2002 | } |
| 2003 | |
| 2004 | /* Basic testing only needs a device that can source or sink bulk traffic. |
| 2005 | * Any device can test control transfers (default with GENERIC binding). |
| 2006 | * |
| 2007 | * Several entries work with the default EP0 implementation that's built |
| 2008 | * into EZ-USB chips. There's a default vendor ID which can be overridden |
| 2009 | * by (very) small config EEPROMS, but otherwise all these devices act |
| 2010 | * identically until firmware is loaded: only EP0 works. It turns out |
| 2011 | * to be easy to make other endpoints work, without modifying that EP0 |
| 2012 | * behavior. For now, we expect that kind of firmware. |
| 2013 | */ |
| 2014 | |
| 2015 | /* an21xx or fx versions of ez-usb */ |
| 2016 | static struct usbtest_info ez1_info = { |
| 2017 | .name = "EZ-USB device", |
| 2018 | .ep_in = 2, |
| 2019 | .ep_out = 2, |
| 2020 | .alt = 1, |
| 2021 | }; |
| 2022 | |
| 2023 | /* fx2 version of ez-usb */ |
| 2024 | static struct usbtest_info ez2_info = { |
| 2025 | .name = "FX2 device", |
| 2026 | .ep_in = 6, |
| 2027 | .ep_out = 2, |
| 2028 | .alt = 1, |
| 2029 | }; |
| 2030 | |
| 2031 | /* ezusb family device with dedicated usb test firmware, |
| 2032 | */ |
| 2033 | static struct usbtest_info fw_info = { |
| 2034 | .name = "usb test device", |
| 2035 | .ep_in = 2, |
| 2036 | .ep_out = 2, |
| 2037 | .alt = 1, |
| 2038 | .autoconf = 1, // iso and ctrl_out need autoconf |
| 2039 | .ctrl_out = 1, |
| 2040 | .iso = 1, // iso_ep's are #8 in/out |
| 2041 | }; |
| 2042 | |
| 2043 | /* peripheral running Linux and 'zero.c' test firmware, or |
| 2044 | * its user-mode cousin. different versions of this use |
| 2045 | * different hardware with the same vendor/product codes. |
| 2046 | * host side MUST rely on the endpoint descriptors. |
| 2047 | */ |
| 2048 | static struct usbtest_info gz_info = { |
| 2049 | .name = "Linux gadget zero", |
| 2050 | .autoconf = 1, |
| 2051 | .ctrl_out = 1, |
| 2052 | .alt = 0, |
| 2053 | }; |
| 2054 | |
| 2055 | static struct usbtest_info um_info = { |
| 2056 | .name = "Linux user mode test driver", |
| 2057 | .autoconf = 1, |
| 2058 | .alt = -1, |
| 2059 | }; |
| 2060 | |
| 2061 | static struct usbtest_info um2_info = { |
| 2062 | .name = "Linux user mode ISO test driver", |
| 2063 | .autoconf = 1, |
| 2064 | .iso = 1, |
| 2065 | .alt = -1, |
| 2066 | }; |
| 2067 | |
| 2068 | #ifdef IBOT2 |
| 2069 | /* this is a nice source of high speed bulk data; |
| 2070 | * uses an FX2, with firmware provided in the device |
| 2071 | */ |
| 2072 | static struct usbtest_info ibot2_info = { |
| 2073 | .name = "iBOT2 webcam", |
| 2074 | .ep_in = 2, |
| 2075 | .alt = -1, |
| 2076 | }; |
| 2077 | #endif |
| 2078 | |
| 2079 | #ifdef GENERIC |
| 2080 | /* we can use any device to test control traffic */ |
| 2081 | static struct usbtest_info generic_info = { |
| 2082 | .name = "Generic USB device", |
| 2083 | .alt = -1, |
| 2084 | }; |
| 2085 | #endif |
| 2086 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2087 | |
| 2088 | static struct usb_device_id id_table [] = { |
| 2089 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2090 | /*-------------------------------------------------------------*/ |
| 2091 | |
| 2092 | /* EZ-USB devices which download firmware to replace (or in our |
| 2093 | * case augment) the default device implementation. |
| 2094 | */ |
| 2095 | |
| 2096 | /* generic EZ-USB FX controller */ |
| 2097 | { USB_DEVICE (0x0547, 0x2235), |
| 2098 | .driver_info = (unsigned long) &ez1_info, |
| 2099 | }, |
| 2100 | |
| 2101 | /* CY3671 development board with EZ-USB FX */ |
| 2102 | { USB_DEVICE (0x0547, 0x0080), |
| 2103 | .driver_info = (unsigned long) &ez1_info, |
| 2104 | }, |
| 2105 | |
| 2106 | /* generic EZ-USB FX2 controller (or development board) */ |
| 2107 | { USB_DEVICE (0x04b4, 0x8613), |
| 2108 | .driver_info = (unsigned long) &ez2_info, |
| 2109 | }, |
| 2110 | |
| 2111 | /* re-enumerated usb test device firmware */ |
| 2112 | { USB_DEVICE (0xfff0, 0xfff0), |
| 2113 | .driver_info = (unsigned long) &fw_info, |
| 2114 | }, |
| 2115 | |
| 2116 | /* "Gadget Zero" firmware runs under Linux */ |
| 2117 | { USB_DEVICE (0x0525, 0xa4a0), |
| 2118 | .driver_info = (unsigned long) &gz_info, |
| 2119 | }, |
| 2120 | |
| 2121 | /* so does a user-mode variant */ |
| 2122 | { USB_DEVICE (0x0525, 0xa4a4), |
| 2123 | .driver_info = (unsigned long) &um_info, |
| 2124 | }, |
| 2125 | |
| 2126 | /* ... and a user-mode variant that talks iso */ |
| 2127 | { USB_DEVICE (0x0525, 0xa4a3), |
| 2128 | .driver_info = (unsigned long) &um2_info, |
| 2129 | }, |
| 2130 | |
| 2131 | #ifdef KEYSPAN_19Qi |
| 2132 | /* Keyspan 19qi uses an21xx (original EZ-USB) */ |
| 2133 | // this does not coexist with the real Keyspan 19qi driver! |
| 2134 | { USB_DEVICE (0x06cd, 0x010b), |
| 2135 | .driver_info = (unsigned long) &ez1_info, |
| 2136 | }, |
| 2137 | #endif |
| 2138 | |
| 2139 | /*-------------------------------------------------------------*/ |
| 2140 | |
| 2141 | #ifdef IBOT2 |
| 2142 | /* iBOT2 makes a nice source of high speed bulk-in data */ |
| 2143 | // this does not coexist with a real iBOT2 driver! |
| 2144 | { USB_DEVICE (0x0b62, 0x0059), |
| 2145 | .driver_info = (unsigned long) &ibot2_info, |
| 2146 | }, |
| 2147 | #endif |
| 2148 | |
| 2149 | /*-------------------------------------------------------------*/ |
| 2150 | |
| 2151 | #ifdef GENERIC |
| 2152 | /* module params can specify devices to use for control tests */ |
| 2153 | { .driver_info = (unsigned long) &generic_info, }, |
| 2154 | #endif |
| 2155 | |
| 2156 | /*-------------------------------------------------------------*/ |
| 2157 | |
| 2158 | { } |
| 2159 | }; |
| 2160 | MODULE_DEVICE_TABLE (usb, id_table); |
| 2161 | |
| 2162 | static struct usb_driver usbtest_driver = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2163 | .name = "usbtest", |
| 2164 | .id_table = id_table, |
| 2165 | .probe = usbtest_probe, |
| 2166 | .ioctl = usbtest_ioctl, |
| 2167 | .disconnect = usbtest_disconnect, |
David Brownell | ff7c79e | 2005-04-22 13:17:00 -0700 | [diff] [blame] | 2168 | .suspend = usbtest_suspend, |
| 2169 | .resume = usbtest_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2170 | }; |
| 2171 | |
| 2172 | /*-------------------------------------------------------------------------*/ |
| 2173 | |
| 2174 | static int __init usbtest_init (void) |
| 2175 | { |
| 2176 | #ifdef GENERIC |
| 2177 | if (vendor) |
David Brownell | 28ffd79 | 2008-04-25 18:51:10 -0700 | [diff] [blame] | 2178 | pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2179 | #endif |
| 2180 | return usb_register (&usbtest_driver); |
| 2181 | } |
| 2182 | module_init (usbtest_init); |
| 2183 | |
| 2184 | static void __exit usbtest_exit (void) |
| 2185 | { |
| 2186 | usb_deregister (&usbtest_driver); |
| 2187 | } |
| 2188 | module_exit (usbtest_exit); |
| 2189 | |
| 2190 | MODULE_DESCRIPTION ("USB Core/HCD Testing Driver"); |
| 2191 | MODULE_LICENSE ("GPL"); |
| 2192 | |