1 /* 2 * Copyright (c) 2013-2020 The Linux Foundation. All rights reserved. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for 5 * any purpose with or without fee is hereby granted, provided that the 6 * above copyright notice and this permission notice appear in all 7 * copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 10 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 11 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 12 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 13 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 14 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 15 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 16 * PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #define ATH_MODULE_NAME hif 20 #include "a_debug.h" 21 #include "hif_usb_internal.h" 22 #include "if_usb.h" 23 #include "cds_api.h" 24 #include "hif_debug.h" 25 26 #define IS_BULK_EP(attr) (((attr) & 3) == 0x02) 27 #define IS_INT_EP(attr) (((attr) & 3) == 0x03) 28 #define IS_ISOC_EP(attr) (((attr) & 3) == 0x01) 29 #define IS_DIR_IN(addr) ((addr) & 0x80) 30 31 #define IS_FW_CRASH_DUMP(x)(((x == FW_ASSERT_PATTERN) || \ 32 (x == FW_REG_PATTERN) || \ 33 ((x & FW_RAMDUMP_PATTERN_MASK) == \ 34 FW_RAMDUMP_PATTERN)) ? 1 : 0) 35 36 static void usb_hif_post_recv_transfers(struct HIF_USB_PIPE *recv_pipe, 37 int buffer_length); 38 static void usb_hif_post_recv_bundle_transfers 39 (struct HIF_USB_PIPE *recv_pipe, 40 int buffer_length); 41 static void usb_hif_cleanup_recv_urb(struct HIF_URB_CONTEXT *urb_context); 42 43 44 /** 45 * usb_hif_free_urb_to_pipe() - add urb back to urb list of a pipe 46 * @pipe: pointer to struct HIF_USB_PIPE 47 * @urb_context: pointer to struct HIF_URB_CONTEXT 48 * 49 * Return: none 50 */ 51 static void usb_hif_free_urb_to_pipe(struct HIF_USB_PIPE *pipe, 52 struct HIF_URB_CONTEXT *urb_context) 53 { 54 qdf_spin_lock_irqsave(&pipe->device->cs_lock); 55 pipe->urb_cnt++; 56 DL_ListAdd(&pipe->urb_list_head, &urb_context->link); 57 qdf_spin_unlock_irqrestore(&pipe->device->cs_lock); 58 } 59 60 /** 61 * usb_hif_alloc_urb_from_pipe() - remove urb back from urb list of a pipe 62 * @pipe: pointer to struct HIF_USB_PIPE 63 * 64 * Return: struct HIF_URB_CONTEXT urb context removed from the urb list 65 */ 66 struct HIF_URB_CONTEXT *usb_hif_alloc_urb_from_pipe(struct HIF_USB_PIPE *pipe) 67 { 68 struct HIF_URB_CONTEXT *urb_context = NULL; 69 DL_LIST *item; 70 71 qdf_spin_lock_irqsave(&pipe->device->cs_lock); 72 item = dl_list_remove_item_from_head(&pipe->urb_list_head); 73 if (item) { 74 urb_context = A_CONTAINING_STRUCT(item, struct HIF_URB_CONTEXT, 75 link); 76 pipe->urb_cnt--; 77 } 78 qdf_spin_unlock_irqrestore(&pipe->device->cs_lock); 79 80 return urb_context; 81 } 82 83 /** 84 * usb_hif_dequeue_pending_transfer() - remove urb from pending xfer list 85 * @pipe: pointer to struct HIF_USB_PIPE 86 * 87 * Return: struct HIF_URB_CONTEXT urb context removed from the pending xfer list 88 */ 89 static struct HIF_URB_CONTEXT *usb_hif_dequeue_pending_transfer 90 (struct HIF_USB_PIPE *pipe) 91 { 92 struct HIF_URB_CONTEXT *urb_context = NULL; 93 DL_LIST *item; 94 95 qdf_spin_lock_irqsave(&pipe->device->cs_lock); 96 item = dl_list_remove_item_from_head(&pipe->urb_pending_list); 97 if (item) 98 urb_context = A_CONTAINING_STRUCT(item, struct HIF_URB_CONTEXT, 99 link); 100 qdf_spin_unlock_irqrestore(&pipe->device->cs_lock); 101 102 return urb_context; 103 } 104 105 /** 106 * usb_hif_enqueue_pending_transfer() - add urb to pending xfer list 107 * @pipe: pointer to struct HIF_USB_PIPE 108 * @urb_context: pointer to struct HIF_URB_CONTEXT to be added to the xfer list 109 * 110 * Return: none 111 */ 112 void usb_hif_enqueue_pending_transfer(struct HIF_USB_PIPE *pipe, 113 struct HIF_URB_CONTEXT *urb_context) 114 { 115 qdf_spin_lock_irqsave(&pipe->device->cs_lock); 116 dl_list_insert_tail(&pipe->urb_pending_list, &urb_context->link); 117 qdf_spin_unlock_irqrestore(&pipe->device->cs_lock); 118 } 119 120 121 /** 122 * usb_hif_remove_pending_transfer() - remove urb from its own list 123 * @urb_context: pointer to struct HIF_URB_CONTEXT to be removed 124 * 125 * Return: none 126 */ 127 void 128 usb_hif_remove_pending_transfer(struct HIF_URB_CONTEXT *urb_context) 129 { 130 qdf_spin_lock_irqsave(&urb_context->pipe->device->cs_lock); 131 dl_list_remove(&urb_context->link); 132 qdf_spin_unlock_irqrestore(&urb_context->pipe->device->cs_lock); 133 } 134 135 /** 136 * usb_hif_alloc_pipe_resources() - allocate urb_cnt urbs to a HIF pipe 137 * @pipe: pointer to struct HIF_USB_PIPE to which resources will be allocated 138 * @urb_cnt: number of urbs to be added to the HIF pipe 139 * 140 * Return: QDF_STATUS_SUCCESS if success else an appropriate QDF_STATUS error 141 */ 142 static QDF_STATUS usb_hif_alloc_pipe_resources 143 (struct HIF_USB_PIPE *pipe, int urb_cnt) 144 { 145 QDF_STATUS status = QDF_STATUS_SUCCESS; 146 int i; 147 struct HIF_URB_CONTEXT *urb_context; 148 149 DL_LIST_INIT(&pipe->urb_list_head); 150 DL_LIST_INIT(&pipe->urb_pending_list); 151 152 for (i = 0; i < urb_cnt; i++) { 153 urb_context = qdf_mem_malloc(sizeof(*urb_context)); 154 if (!urb_context) { 155 status = QDF_STATUS_E_NOMEM; 156 break; 157 } 158 urb_context->pipe = pipe; 159 urb_context->urb = usb_alloc_urb(0, GFP_KERNEL); 160 161 if (!urb_context->urb) { 162 status = QDF_STATUS_E_NOMEM; 163 qdf_mem_free(urb_context); 164 hif_err("urb_context->urb is null"); 165 break; 166 } 167 168 /* note we are only allocate the urb contexts here, the actual 169 * URB is 170 * allocated from the kernel as needed to do a transaction 171 */ 172 pipe->urb_alloc++; 173 174 usb_hif_free_urb_to_pipe(pipe, urb_context); 175 } 176 177 hif_debug("athusb: alloc resources lpipe:%d hpipe:0x%X urbs:%d", 178 pipe->logical_pipe_num, 179 pipe->usb_pipe_handle, 180 pipe->urb_alloc); 181 return status; 182 } 183 184 /** 185 * usb_hif_free_pipe_resources() - free urb resources allocated to a HIF pipe 186 * @pipe: pointer to struct HIF_USB_PIPE 187 * 188 * Return: none 189 */ 190 static void usb_hif_free_pipe_resources(struct HIF_USB_PIPE *pipe) 191 { 192 struct HIF_URB_CONTEXT *urb_context; 193 194 if (!pipe->device) { 195 /* nothing allocated for this pipe */ 196 hif_err("pipe->device is null"); 197 return; 198 } 199 200 hif_info("athusb: free resources lpipe:%d hpipe:0x%X urbs:%d avail:%d", 201 pipe->logical_pipe_num, 202 pipe->usb_pipe_handle, pipe->urb_alloc, 203 pipe->urb_cnt); 204 205 if (pipe->urb_alloc != pipe->urb_cnt) { 206 hif_err("athusb: urb leak! lpipe:%d hpipe:0x%X urbs:%d avail:%d", 207 pipe->logical_pipe_num, 208 pipe->usb_pipe_handle, pipe->urb_alloc, 209 pipe->urb_cnt); 210 } 211 212 while (true) { 213 urb_context = usb_hif_alloc_urb_from_pipe(pipe); 214 if (!urb_context) 215 break; 216 217 if (urb_context->buf) { 218 qdf_nbuf_free(urb_context->buf); 219 urb_context->buf = NULL; 220 } 221 222 usb_free_urb(urb_context->urb); 223 urb_context->urb = NULL; 224 qdf_mem_free(urb_context); 225 } 226 227 } 228 229 #ifdef QCN7605_SUPPORT 230 /** 231 * usb_hif_get_logical_pipe_num() - get pipe number for a particular enpoint 232 * @device: pointer to HIF_DEVICE_USB structure 233 * @ep_address: endpoint address 234 * @urb_count: number of urb resources to be allocated to the pipe 235 * 236 * Return: uint8_t pipe number corresponding to ep_address 237 */ 238 static uint8_t usb_hif_get_logical_pipe_num(struct HIF_DEVICE_USB *device, 239 uint8_t ep_address, 240 int *urb_count) 241 { 242 uint8_t pipe_num = HIF_USB_PIPE_INVALID; 243 244 switch (ep_address) { 245 case USB_EP_ADDR_APP_CTRL_IN: 246 pipe_num = HIF_RX_CTRL_PIPE; 247 *urb_count = RX_URB_COUNT; 248 break; 249 case USB_EP_ADDR_APP_DATA_IN: 250 pipe_num = HIF_RX_DATA_PIPE; 251 *urb_count = RX_URB_COUNT; 252 break; 253 break; 254 case USB_EP_ADDR_APP_CTRL_OUT: 255 pipe_num = HIF_TX_CTRL_PIPE; 256 *urb_count = TX_URB_COUNT; 257 break; 258 case USB_EP_ADDR_APP_DATA_OUT: 259 pipe_num = HIF_TX_DATA_LP_PIPE; 260 *urb_count = TX_URB_COUNT; 261 break; 262 default: 263 /* note: there may be endpoints not currently used */ 264 break; 265 } 266 267 return pipe_num; 268 } 269 #else 270 /** 271 * usb_hif_get_logical_pipe_num() - get pipe number for a particular enpoint 272 * @device: pointer to HIF_DEVICE_USB structure 273 * @ep_address: endpoint address 274 * @urb_count: number of urb resources to be allocated to the pipe 275 * 276 * Return: uint8_t pipe number corresponding to ep_address 277 */ 278 static uint8_t usb_hif_get_logical_pipe_num 279 (struct HIF_DEVICE_USB *device, 280 uint8_t ep_address, 281 int *urb_count) 282 { 283 uint8_t pipe_num = HIF_USB_PIPE_INVALID; 284 285 switch (ep_address) { 286 case USB_EP_ADDR_APP_CTRL_IN: 287 pipe_num = HIF_RX_CTRL_PIPE; 288 *urb_count = RX_URB_COUNT; 289 break; 290 case USB_EP_ADDR_APP_DATA_IN: 291 pipe_num = HIF_RX_DATA_PIPE; 292 *urb_count = RX_URB_COUNT; 293 break; 294 case USB_EP_ADDR_APP_INT_IN: 295 pipe_num = HIF_RX_INT_PIPE; 296 *urb_count = RX_URB_COUNT; 297 break; 298 case USB_EP_ADDR_APP_DATA2_IN: 299 pipe_num = HIF_RX_DATA2_PIPE; 300 *urb_count = RX_URB_COUNT; 301 break; 302 case USB_EP_ADDR_APP_CTRL_OUT: 303 pipe_num = HIF_TX_CTRL_PIPE; 304 *urb_count = TX_URB_COUNT; 305 break; 306 case USB_EP_ADDR_APP_DATA_LP_OUT: 307 pipe_num = HIF_TX_DATA_LP_PIPE; 308 *urb_count = TX_URB_COUNT; 309 break; 310 case USB_EP_ADDR_APP_DATA_MP_OUT: 311 pipe_num = HIF_TX_DATA_MP_PIPE; 312 *urb_count = TX_URB_COUNT; 313 break; 314 case USB_EP_ADDR_APP_DATA_HP_OUT: 315 pipe_num = HIF_TX_DATA_HP_PIPE; 316 *urb_count = TX_URB_COUNT; 317 break; 318 default: 319 /* note: there may be endpoints not currently used */ 320 break; 321 } 322 323 return pipe_num; 324 } 325 #endif /* QCN7605_SUPPORT */ 326 327 /** 328 * usb_hif_get_logical_pipe_num() - setup urb resources for all pipes 329 * @device: pointer to HIF_DEVICE_USB structure 330 * 331 * Return: QDF_STATUS_SUCCESS if success else an appropriate QDF_STATUS error 332 */ 333 QDF_STATUS usb_hif_setup_pipe_resources(struct HIF_DEVICE_USB *device) 334 { 335 struct usb_interface *interface = device->interface; 336 struct usb_host_interface *iface_desc = interface->cur_altsetting; 337 struct usb_endpoint_descriptor *endpoint; 338 int i; 339 int urbcount; 340 QDF_STATUS status = QDF_STATUS_SUCCESS; 341 struct HIF_USB_PIPE *pipe; 342 uint8_t pipe_num; 343 344 /* walk decriptors and setup pipes */ 345 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { 346 endpoint = &iface_desc->endpoint[i].desc; 347 348 if (IS_BULK_EP(endpoint->bmAttributes)) { 349 hif_debug("%s Bulk Ep:0x%2.2X maxpktsz:%d", 350 IS_DIR_IN(endpoint->bEndpointAddress) ? 351 "RX" : "TX", 352 endpoint->bEndpointAddress, 353 qdf_le16_to_cpu(endpoint->wMaxPacketSize)); 354 } else if (IS_INT_EP(endpoint->bmAttributes)) { 355 hif_debug("%s Int Ep:0x%2.2X maxpktsz:%d interval:%d", 356 IS_DIR_IN(endpoint->bEndpointAddress) ? 357 "RX" : "TX", 358 endpoint->bEndpointAddress, 359 qdf_le16_to_cpu(endpoint->wMaxPacketSize), 360 endpoint->bInterval); 361 } else if (IS_ISOC_EP(endpoint->bmAttributes)) { 362 /* TODO for ISO */ 363 hif_debug("%s ISOC Ep:0x%2.2X maxpktsz:%d interval:%d", 364 IS_DIR_IN(endpoint->bEndpointAddress) ? 365 "RX" : "TX", 366 endpoint->bEndpointAddress, 367 qdf_le16_to_cpu(endpoint->wMaxPacketSize), 368 endpoint->bInterval); 369 } 370 urbcount = 0; 371 372 pipe_num = usb_hif_get_logical_pipe_num(device, 373 endpoint->bEndpointAddress, 374 &urbcount); 375 if (HIF_USB_PIPE_INVALID == pipe_num) 376 continue; 377 378 pipe = &device->pipes[pipe_num]; 379 if (pipe->device) { 380 /*pipe was already setup */ 381 continue; 382 } 383 384 pipe->device = device; 385 pipe->logical_pipe_num = pipe_num; 386 pipe->ep_address = endpoint->bEndpointAddress; 387 pipe->max_packet_size = 388 qdf_le16_to_cpu(endpoint->wMaxPacketSize); 389 390 if (IS_BULK_EP(endpoint->bmAttributes)) { 391 if (IS_DIR_IN(pipe->ep_address)) { 392 pipe->usb_pipe_handle = 393 usb_rcvbulkpipe(device->udev, 394 pipe->ep_address); 395 } else { 396 pipe->usb_pipe_handle = 397 usb_sndbulkpipe(device->udev, 398 pipe->ep_address); 399 } 400 } else if (IS_INT_EP(endpoint->bmAttributes)) { 401 if (IS_DIR_IN(pipe->ep_address)) { 402 pipe->usb_pipe_handle = 403 usb_rcvintpipe(device->udev, 404 pipe->ep_address); 405 } else { 406 pipe->usb_pipe_handle = 407 usb_sndintpipe(device->udev, 408 pipe->ep_address); 409 } 410 } else if (IS_ISOC_EP(endpoint->bmAttributes)) { 411 /* TODO for ISO */ 412 if (IS_DIR_IN(pipe->ep_address)) { 413 pipe->usb_pipe_handle = 414 usb_rcvisocpipe(device->udev, 415 pipe->ep_address); 416 } else { 417 pipe->usb_pipe_handle = 418 usb_sndisocpipe(device->udev, 419 pipe->ep_address); 420 } 421 } 422 pipe->ep_desc = endpoint; 423 424 if (!IS_DIR_IN(pipe->ep_address)) 425 pipe->flags |= HIF_USB_PIPE_FLAG_TX; 426 427 status = usb_hif_alloc_pipe_resources(pipe, urbcount); 428 429 if (!QDF_IS_STATUS_SUCCESS(status)) 430 break; 431 432 } 433 434 return status; 435 } 436 437 438 /** 439 * usb_hif_cleanup_pipe_resources() - free urb resources for all pipes 440 * @device: pointer to HIF_DEVICE_USB structure 441 * 442 * Return: none 443 */ 444 void usb_hif_cleanup_pipe_resources(struct HIF_DEVICE_USB *device) 445 { 446 int i; 447 448 for (i = 0; i < HIF_USB_PIPE_MAX; i++) 449 usb_hif_free_pipe_resources(&device->pipes[i]); 450 } 451 452 /** 453 * usb_hif_flush_pending_transfers() - kill pending urbs for a pipe 454 * @pipe: pointer to struct HIF_USB_PIPE structure 455 * 456 * Return: none 457 */ 458 static void usb_hif_flush_pending_transfers(struct HIF_USB_PIPE *pipe) 459 { 460 struct HIF_URB_CONTEXT *urb_context; 461 462 hif_info("+ pipe: %d", pipe->logical_pipe_num); 463 464 while (1) { 465 urb_context = usb_hif_dequeue_pending_transfer(pipe); 466 if (!urb_context) { 467 hif_warn("urb_context is NULL"); 468 break; 469 } 470 hif_info("pending urb ctxt: 0x%pK", urb_context); 471 if (urb_context->urb) { 472 hif_info("killing urb: 0x%pK", urb_context->urb); 473 /* killing the URB will cause the completion routines to 474 * run 475 */ 476 usb_kill_urb(urb_context->urb); 477 } 478 } 479 hif_info("-"); 480 } 481 482 /** 483 * usb_hif_flush_all() - flush pending transfers for all pipes for a usb bus 484 * @device: pointer to HIF_DEVICE_USB structure 485 * 486 * Return: none 487 */ 488 void usb_hif_flush_all(struct HIF_DEVICE_USB *device) 489 { 490 int i; 491 struct HIF_USB_PIPE *pipe; 492 493 hif_info("+"); 494 495 for (i = 0; i < HIF_USB_PIPE_MAX; i++) { 496 if (device->pipes[i].device) { 497 usb_hif_flush_pending_transfers(&device->pipes[i]); 498 pipe = &device->pipes[i]; 499 500 HIF_USB_FLUSH_WORK(pipe); 501 } 502 } 503 504 hif_info("-"); 505 } 506 507 /** 508 * usb_hif_cleanup_recv_urb() - cleanup recv urb 509 * @urb_context: pointer to struct HIF_URB_CONTEXT structure 510 * 511 * Return: none 512 */ 513 static void usb_hif_cleanup_recv_urb(struct HIF_URB_CONTEXT *urb_context) 514 { 515 516 if (urb_context->buf) { 517 qdf_nbuf_free(urb_context->buf); 518 urb_context->buf = NULL; 519 } 520 521 usb_hif_free_urb_to_pipe(urb_context->pipe, urb_context); 522 } 523 524 /** 525 * usb_hif_cleanup_transmit_urb() - cleanup transmit urb 526 * @urb_context: pointer to struct HIF_URB_CONTEXT structure 527 * 528 * Return: none 529 */ 530 void usb_hif_cleanup_transmit_urb(struct HIF_URB_CONTEXT *urb_context) 531 { 532 usb_hif_free_urb_to_pipe(urb_context->pipe, urb_context); 533 } 534 535 /** 536 * usb_hif_usb_recv_prestart_complete() - completion routine for prestart rx urb 537 * @urb: urb for which the completion routine is being called 538 * 539 * Return: none 540 */ 541 static void usb_hif_usb_recv_prestart_complete 542 (struct urb *urb) 543 { 544 struct HIF_URB_CONTEXT *urb_context = 545 (struct HIF_URB_CONTEXT *) urb->context; 546 QDF_STATUS status = QDF_STATUS_SUCCESS; 547 qdf_nbuf_t buf = NULL; 548 struct HIF_USB_PIPE *pipe = urb_context->pipe; 549 struct hif_usb_softc *sc = HIF_GET_USB_SOFTC(pipe->device); 550 551 hif_debug("+: recv pipe: %d, stat:%d,len:%d urb:0x%pK", 552 pipe->logical_pipe_num, 553 urb->status, urb->actual_length, 554 urb); 555 556 /* this urb is not pending anymore */ 557 usb_hif_remove_pending_transfer(urb_context); 558 do { 559 if (urb->status != 0) { 560 status = A_ECOMM; 561 switch (urb->status) { 562 case -ECONNRESET: 563 case -ENOENT: 564 case -ESHUTDOWN: 565 /* NOTE: no need to spew these errors when 566 * device is removed 567 * or urb is killed due to driver shutdown 568 */ 569 status = A_ECANCELED; 570 break; 571 default: 572 hif_err("recv pipe: %d (ep:0x%2.2X), status: %d", 573 pipe->logical_pipe_num, 574 pipe->ep_address, 575 urb->status); 576 break; 577 } 578 break; 579 } 580 if (urb->actual_length == 0) 581 break; 582 buf = urb_context->buf; 583 /* we are going to pass it up */ 584 urb_context->buf = NULL; 585 qdf_nbuf_put_tail(buf, urb->actual_length); 586 587 if (AR_DEBUG_LVL_CHECK(USB_HIF_DEBUG_DUMP_DATA)) { 588 uint8_t *data; 589 uint32_t len; 590 591 qdf_nbuf_peek_header(buf, &data, &len); 592 debug_dump_bytes(data, len, "hif recv data"); 593 } 594 /* note: queue implements a lock */ 595 skb_queue_tail(&pipe->io_comp_queue, buf); 596 597 HIF_USB_SCHEDULE_WORK(pipe); 598 } while (false); 599 600 usb_hif_cleanup_recv_urb(urb_context); 601 602 /* Prestart URBs runs out and now start working receive pipe. */ 603 qdf_spin_lock_irqsave(&pipe->device->rx_prestart_lock); 604 if ((--pipe->urb_prestart_cnt == 0) && !sc->suspend_state) 605 usb_hif_start_recv_pipes(pipe->device); 606 qdf_spin_unlock_irqrestore(&pipe->device->rx_prestart_lock); 607 608 hif_debug("-"); 609 } 610 611 /** 612 * usb_hif_usb_recv_complete() - completion routine for rx urb 613 * @urb: urb for which the completion routine is being called 614 * 615 * Return: none 616 */ 617 static void usb_hif_usb_recv_complete(struct urb *urb) 618 { 619 struct HIF_URB_CONTEXT *urb_context = 620 (struct HIF_URB_CONTEXT *) urb->context; 621 QDF_STATUS status = QDF_STATUS_SUCCESS; 622 qdf_nbuf_t buf = NULL; 623 struct HIF_USB_PIPE *pipe = urb_context->pipe; 624 struct hif_usb_softc *sc = HIF_GET_USB_SOFTC(pipe->device); 625 626 hif_debug("+: recv pipe: %d, stat:%d,len:%d urb:0x%pK", 627 pipe->logical_pipe_num, 628 urb->status, urb->actual_length, 629 urb); 630 631 /* this urb is not pending anymore */ 632 usb_hif_remove_pending_transfer(urb_context); 633 634 do { 635 636 if (urb->status != 0) { 637 status = A_ECOMM; 638 switch (urb->status) { 639 #ifdef RX_SG_SUPPORT 640 case -EOVERFLOW: 641 urb->actual_length = HIF_USB_RX_BUFFER_SIZE; 642 status = QDF_STATUS_SUCCESS; 643 break; 644 #endif 645 case -ECONNRESET: 646 case -ENOENT: 647 case -ESHUTDOWN: 648 /* NOTE: no need to spew these errors when 649 * device is removed 650 * or urb is killed due to driver shutdown 651 */ 652 status = A_ECANCELED; 653 break; 654 default: 655 hif_err("recv pipe: %d (ep:0x%2.2X), status: %d", 656 pipe->logical_pipe_num, 657 pipe->ep_address, 658 urb->status); 659 break; 660 } 661 break; 662 } 663 if (urb->actual_length == 0) 664 break; 665 buf = urb_context->buf; 666 /* we are going to pass it up */ 667 urb_context->buf = NULL; 668 qdf_nbuf_put_tail(buf, urb->actual_length); 669 if (AR_DEBUG_LVL_CHECK(USB_HIF_DEBUG_DUMP_DATA)) { 670 uint8_t *data; 671 uint32_t len; 672 673 qdf_nbuf_peek_header(buf, &data, &len); 674 debug_dump_bytes(data, len, "hif recv data"); 675 } 676 /* note: queue implements a lock */ 677 skb_queue_tail(&pipe->io_comp_queue, buf); 678 679 if (pipe->device->htc_callbacks.update_bundle_stats) 680 pipe->device->htc_callbacks.update_bundle_stats 681 (pipe->device->htc_callbacks.Context, 1); 682 683 HIF_USB_SCHEDULE_WORK(pipe); 684 } while (false); 685 686 usb_hif_cleanup_recv_urb(urb_context); 687 688 /* Only re-submit URB when STATUS is success and HIF is not at the 689 * suspend state. 690 */ 691 if (QDF_IS_STATUS_SUCCESS(status) && !sc->suspend_state) { 692 if (pipe->urb_cnt >= pipe->urb_cnt_thresh) { 693 /* our free urbs are piling up, post more transfers */ 694 usb_hif_post_recv_transfers(pipe, 695 HIF_USB_RX_BUFFER_SIZE); 696 } 697 } else { 698 hif_err("pipe: %d, fail to post URB: status: %d suspend: %d", 699 pipe->logical_pipe_num, 700 urb->status, 701 sc->suspend_state); 702 } 703 704 hif_debug("-"); 705 } 706 707 /** 708 * usb_hif_usb_recv_bundle_complete() - completion routine for rx bundling urb 709 * @urb: urb for which the completion routine is being called 710 * 711 * Return: none 712 */ 713 static void usb_hif_usb_recv_bundle_complete(struct urb *urb) 714 { 715 struct HIF_URB_CONTEXT *urb_context = 716 (struct HIF_URB_CONTEXT *) urb->context; 717 QDF_STATUS status = QDF_STATUS_SUCCESS; 718 qdf_nbuf_t buf = NULL; 719 struct HIF_USB_PIPE *pipe = urb_context->pipe; 720 uint8_t *netdata, *netdata_new; 721 uint32_t netlen, netlen_new; 722 HTC_FRAME_HDR *HtcHdr; 723 uint16_t payloadLen; 724 qdf_nbuf_t new_skb = NULL; 725 uint8_t no_of_pkt_in_bundle; 726 727 hif_debug("+: recv pipe: %d, stat:%d,len:%d urb:0x%pK", 728 pipe->logical_pipe_num, 729 urb->status, urb->actual_length, 730 urb); 731 732 /* this urb is not pending anymore */ 733 usb_hif_remove_pending_transfer(urb_context); 734 735 do { 736 737 if (urb->status != 0) { 738 status = A_ECOMM; 739 switch (urb->status) { 740 case -ECONNRESET: 741 case -ENOENT: 742 case -ESHUTDOWN: 743 /* NOTE: no need to spew these errors when 744 * device is removed 745 * or urb is killed due to driver shutdown 746 */ 747 status = A_ECANCELED; 748 break; 749 default: 750 hif_err("recv pipe: %d (ep:0x%2.2X), status: %d", 751 pipe->logical_pipe_num, 752 pipe->ep_address, 753 urb->status); 754 break; 755 } 756 break; 757 } 758 if (urb->actual_length == 0) 759 break; 760 buf = urb_context->buf; 761 if (AR_DEBUG_LVL_CHECK(USB_HIF_DEBUG_DUMP_DATA)) { 762 uint8_t *data; 763 uint32_t len; 764 765 qdf_nbuf_peek_header(buf, &data, &len); 766 debug_dump_bytes(data, len, "hif recv data"); 767 } 768 769 qdf_nbuf_peek_header(buf, &netdata, &netlen); 770 netlen = urb->actual_length; 771 no_of_pkt_in_bundle = 0; 772 773 do { 774 uint16_t frame_len; 775 776 if (IS_FW_CRASH_DUMP(*(uint32_t *) netdata)) 777 frame_len = netlen; 778 else { 779 /* Hack into HTC header for bundle processing */ 780 HtcHdr = (HTC_FRAME_HDR *) netdata; 781 if (HtcHdr->EndpointID >= ENDPOINT_MAX) { 782 hif_err("athusb: Rx: invalid EndpointID=%d", 783 HtcHdr->EndpointID); 784 break; 785 } 786 787 payloadLen = HtcHdr->PayloadLen; 788 payloadLen = qdf_le16_to_cpu(payloadLen); 789 790 if (payloadLen > HIF_USB_RX_BUFFER_SIZE) { 791 hif_err("athusb: payloadLen too long %u", 792 payloadLen); 793 break; 794 } 795 frame_len = (HTC_HDR_LENGTH + payloadLen); 796 } 797 798 if (netlen < frame_len) { 799 hif_err("athusb: subframe length %d not fitted into bundle packet length %d" 800 , netlen, frame_len); 801 break; 802 } 803 804 /* allocate a new skb and copy */ 805 new_skb = 806 qdf_nbuf_alloc(NULL, frame_len, 0, 4, false); 807 if (!new_skb) { 808 hif_err("athusb: allocate skb (len=%u) failed" 809 , frame_len); 810 break; 811 } 812 813 qdf_nbuf_peek_header(new_skb, &netdata_new, 814 &netlen_new); 815 qdf_mem_copy(netdata_new, netdata, frame_len); 816 qdf_nbuf_put_tail(new_skb, frame_len); 817 skb_queue_tail(&pipe->io_comp_queue, new_skb); 818 new_skb = NULL; 819 netdata += frame_len; 820 netlen -= frame_len; 821 no_of_pkt_in_bundle++; 822 } while (netlen); 823 824 if (pipe->device->htc_callbacks.update_bundle_stats) 825 pipe->device->htc_callbacks.update_bundle_stats 826 (pipe->device->htc_callbacks.Context, 827 no_of_pkt_in_bundle); 828 829 HIF_USB_SCHEDULE_WORK(pipe); 830 } while (false); 831 832 if (!urb_context->buf) 833 hif_err("athusb: buffer in urb_context is NULL"); 834 835 /* reset urb_context->buf ==> seems not necessary */ 836 usb_hif_free_urb_to_pipe(urb_context->pipe, urb_context); 837 838 if (QDF_IS_STATUS_SUCCESS(status)) { 839 if (pipe->urb_cnt >= pipe->urb_cnt_thresh) { 840 /* our free urbs are piling up, post more transfers */ 841 usb_hif_post_recv_bundle_transfers(pipe, 842 pipe->device->rx_bundle_buf_len); 843 } 844 } 845 846 hif_debug("-"); 847 } 848 849 /** 850 * usb_hif_post_recv_prestart_transfers() - post prestart recv urbs for a pipe 851 * @recv_pipe: rx data pipe 852 * @prestart_urb: number of prestart recv urbs to be posted 853 * 854 * Return: none 855 */ 856 static void usb_hif_post_recv_prestart_transfers(struct HIF_USB_PIPE *recv_pipe, 857 int prestart_urb) 858 { 859 struct HIF_URB_CONTEXT *urb_context; 860 uint8_t *data; 861 uint32_t len; 862 struct urb *urb; 863 int i, usb_status, buffer_length = HIF_USB_RX_BUFFER_SIZE; 864 865 hif_info("+"); 866 867 qdf_spin_lock_irqsave(&recv_pipe->device->rx_prestart_lock); 868 for (i = 0; i < prestart_urb; i++) { 869 urb_context = usb_hif_alloc_urb_from_pipe(recv_pipe); 870 if (!urb_context) 871 break; 872 873 urb_context->buf = 874 qdf_nbuf_alloc(NULL, buffer_length, 0, 4, false); 875 if (!urb_context->buf) { 876 usb_hif_cleanup_recv_urb(urb_context); 877 break; 878 } 879 880 qdf_nbuf_peek_header(urb_context->buf, &data, &len); 881 882 urb = urb_context->urb; 883 884 usb_fill_bulk_urb(urb, 885 recv_pipe->device->udev, 886 recv_pipe->usb_pipe_handle, 887 data, 888 buffer_length, 889 usb_hif_usb_recv_prestart_complete, 890 urb_context); 891 892 hif_debug("athusb bulk recv submit:%d, 0x%X (ep:0x%2.2X), %d bytes, buf:0x%pK", 893 recv_pipe->logical_pipe_num, 894 recv_pipe->usb_pipe_handle, 895 recv_pipe->ep_address, buffer_length, 896 urb_context->buf); 897 898 usb_hif_enqueue_pending_transfer(recv_pipe, urb_context); 899 usb_status = usb_submit_urb(urb, GFP_ATOMIC); 900 901 if (usb_status) { 902 hif_err("athusb : usb bulk recv failed %d", 903 usb_status); 904 usb_hif_remove_pending_transfer(urb_context); 905 usb_hif_cleanup_recv_urb(urb_context); 906 break; 907 } 908 recv_pipe->urb_prestart_cnt++; 909 } 910 qdf_spin_unlock_irqrestore(&recv_pipe->device->rx_prestart_lock); 911 912 hif_info("-"); 913 } 914 915 /** 916 * usb_hif_post_recv_transfers() - post recv urbs for a given pipe 917 * @recv_pipe: recv pipe for which urbs need to be posted 918 * @buffer_length: buffer length of the recv urbs 919 * 920 * Return: none 921 */ 922 static void usb_hif_post_recv_transfers(struct HIF_USB_PIPE *recv_pipe, 923 int buffer_length) 924 { 925 struct HIF_URB_CONTEXT *urb_context; 926 uint8_t *data; 927 uint32_t len; 928 struct urb *urb; 929 int usb_status; 930 931 while (1) { 932 933 urb_context = usb_hif_alloc_urb_from_pipe(recv_pipe); 934 if (!urb_context) 935 break; 936 937 urb_context->buf = qdf_nbuf_alloc(NULL, buffer_length, 0, 938 4, false); 939 if (!urb_context->buf) { 940 usb_hif_cleanup_recv_urb(urb_context); 941 break; 942 } 943 944 qdf_nbuf_peek_header(urb_context->buf, &data, &len); 945 946 urb = urb_context->urb; 947 948 usb_fill_bulk_urb(urb, 949 recv_pipe->device->udev, 950 recv_pipe->usb_pipe_handle, 951 data, 952 buffer_length, 953 usb_hif_usb_recv_complete, urb_context); 954 955 hif_debug("athusb bulk recv submit:%d, 0x%X (ep:0x%2.2X), %d bytes, buf:0x%pK", 956 recv_pipe->logical_pipe_num, 957 recv_pipe->usb_pipe_handle, 958 recv_pipe->ep_address, buffer_length, 959 urb_context->buf); 960 961 usb_hif_enqueue_pending_transfer(recv_pipe, urb_context); 962 963 usb_status = usb_submit_urb(urb, GFP_ATOMIC); 964 965 if (usb_status) { 966 hif_err("athusb : usb bulk recv failed %d", 967 usb_status); 968 usb_hif_remove_pending_transfer(urb_context); 969 usb_hif_cleanup_recv_urb(urb_context); 970 break; 971 } 972 } 973 974 } 975 976 /** 977 * usb_hif_post_recv_bundle_transfers() - post recv urbs for a given pipe 978 * @recv_pipe: recv pipe for which urbs need to be posted 979 * @buffer_length: maximum length of rx bundle 980 * 981 * Return: none 982 */ 983 static void usb_hif_post_recv_bundle_transfers(struct HIF_USB_PIPE *recv_pipe, 984 int buffer_length) 985 { 986 struct HIF_URB_CONTEXT *urb_context; 987 uint8_t *data; 988 uint32_t len; 989 struct urb *urb; 990 int usb_status; 991 992 while (1) { 993 994 urb_context = usb_hif_alloc_urb_from_pipe(recv_pipe); 995 if (!urb_context) 996 break; 997 998 if (!urb_context->buf) { 999 urb_context->buf = 1000 qdf_nbuf_alloc(NULL, buffer_length, 0, 4, false); 1001 if (!urb_context->buf) { 1002 usb_hif_cleanup_recv_urb(urb_context); 1003 break; 1004 } 1005 } 1006 1007 qdf_nbuf_peek_header(urb_context->buf, &data, &len); 1008 1009 urb = urb_context->urb; 1010 usb_fill_bulk_urb(urb, 1011 recv_pipe->device->udev, 1012 recv_pipe->usb_pipe_handle, 1013 data, 1014 buffer_length, 1015 usb_hif_usb_recv_bundle_complete, 1016 urb_context); 1017 1018 hif_debug("athusb bulk recv submit:%d, 0x%X (ep:0x%2.2X), %d bytes, buf:0x%pK", 1019 recv_pipe->logical_pipe_num, 1020 recv_pipe->usb_pipe_handle, 1021 recv_pipe->ep_address, buffer_length, 1022 urb_context->buf); 1023 1024 usb_hif_enqueue_pending_transfer(recv_pipe, urb_context); 1025 1026 usb_status = usb_submit_urb(urb, GFP_ATOMIC); 1027 1028 if (usb_status) { 1029 hif_err("athusb : usb bulk recv failed %d", 1030 usb_status); 1031 usb_hif_remove_pending_transfer(urb_context); 1032 usb_hif_free_urb_to_pipe(urb_context->pipe, 1033 urb_context); 1034 break; 1035 } 1036 1037 } 1038 1039 } 1040 1041 /** 1042 * usb_hif_prestart_recv_pipes() - post prestart recv urbs 1043 * @device: HIF device for which prestart recv urbs need to be posted 1044 * 1045 * Return: none 1046 */ 1047 void usb_hif_prestart_recv_pipes(struct HIF_DEVICE_USB *device) 1048 { 1049 struct HIF_USB_PIPE *pipe; 1050 int prestart_cnt = 8; 1051 1052 if (device->rx_ctrl_pipe_supported) { 1053 pipe = &device->pipes[HIF_RX_CTRL_PIPE]; 1054 prestart_cnt = 4; 1055 usb_hif_post_recv_prestart_transfers(pipe, prestart_cnt); 1056 } 1057 /* 1058 * USB driver learn to support bundle or not until the firmware 1059 * download and ready. Only allocate some URBs for control message 1060 * communication during the initial phase then start the final 1061 * working pipe after all information understood. 1062 */ 1063 pipe = &device->pipes[HIF_RX_DATA_PIPE]; 1064 usb_hif_post_recv_prestart_transfers(pipe, prestart_cnt); 1065 } 1066 1067 /** 1068 * usb_hif_start_recv_pipes() - start recv urbs 1069 * @device: HIF device for which recv urbs need to be posted 1070 * 1071 * This function is called after all prestart recv urbs are exhausted 1072 * 1073 * Return: none 1074 */ 1075 void usb_hif_start_recv_pipes(struct HIF_DEVICE_USB *device) 1076 { 1077 struct HIF_USB_PIPE *pipe; 1078 uint32_t buf_len; 1079 1080 HIF_ENTER(); 1081 pipe = &device->pipes[HIF_RX_DATA_PIPE]; 1082 pipe->urb_cnt_thresh = pipe->urb_alloc / 2; 1083 1084 hif_info("Post URBs to RX_DATA_PIPE: %d is_bundle %d", 1085 device->pipes[HIF_RX_DATA_PIPE].urb_cnt, 1086 device->is_bundle_enabled); 1087 if (device->is_bundle_enabled) { 1088 usb_hif_post_recv_bundle_transfers(pipe, 1089 pipe->device->rx_bundle_buf_len); 1090 } else { 1091 buf_len = HIF_USB_RX_BUFFER_SIZE; 1092 usb_hif_post_recv_transfers(pipe, buf_len); 1093 } 1094 1095 hif_debug("athusb bulk recv len %d", buf_len); 1096 1097 if (!hif_usb_disable_rxdata2) { 1098 hif_info("Post URBs to RX_DATA2_PIPE: %d", 1099 device->pipes[HIF_RX_DATA2_PIPE].urb_cnt); 1100 1101 pipe = &device->pipes[HIF_RX_DATA2_PIPE]; 1102 pipe->urb_cnt_thresh = pipe->urb_alloc / 2; 1103 usb_hif_post_recv_transfers(pipe, HIF_USB_RX_BUFFER_SIZE); 1104 } 1105 1106 if (device->rx_ctrl_pipe_supported) { 1107 hif_info("Post URBs to RX_CONTROL_PIPE: %d", 1108 device->pipes[HIF_RX_CTRL_PIPE].urb_cnt); 1109 1110 pipe = &device->pipes[HIF_RX_CTRL_PIPE]; 1111 pipe->urb_cnt_thresh = pipe->urb_alloc / 2; 1112 usb_hif_post_recv_transfers(pipe, HIF_USB_RX_BUFFER_SIZE); 1113 } 1114 HIF_EXIT(); 1115 } 1116 1117 /** 1118 * usb_hif_submit_ctrl_out() - send out a ctrl urb 1119 * @device: HIF device for which urb needs to be posted 1120 * @req: request value for the ctrl message 1121 * @value: USB message value 1122 * @index: USB message index value 1123 * @data: pointer to data containing ctrl message to send 1124 * @size: size of the control message to send 1125 * 1126 * Return: QDF_STATUS_SUCCESS if success else an appropriate QDF_STATUS error 1127 */ 1128 QDF_STATUS usb_hif_submit_ctrl_out(struct HIF_DEVICE_USB *device, 1129 uint8_t req, uint16_t value, uint16_t index, 1130 void *data, uint32_t size) 1131 { 1132 int32_t result = 0; 1133 QDF_STATUS ret = QDF_STATUS_SUCCESS; 1134 uint8_t *buf = NULL; 1135 1136 do { 1137 1138 if (size > 0) { 1139 buf = qdf_mem_malloc(size); 1140 if (!buf) { 1141 ret = QDF_STATUS_E_NOMEM; 1142 break; 1143 } 1144 qdf_mem_copy(buf, (uint8_t *) data, size); 1145 } 1146 1147 hif_debug("ctrl-out req:0x%2.2X, value:0x%4.4X index:0x%4.4X, datasize:%d", 1148 req, value, index, size); 1149 1150 result = usb_control_msg(device->udev, 1151 usb_sndctrlpipe(device->udev, 0), 1152 req, 1153 USB_DIR_OUT | USB_TYPE_VENDOR | 1154 USB_RECIP_DEVICE, value, index, buf, 1155 size, 2 * HZ); 1156 1157 if (result < 0) { 1158 hif_err("usb_control_msg failed, (result=%d)", result); 1159 ret = QDF_STATUS_E_FAILURE; 1160 } 1161 1162 } while (false); 1163 1164 if (buf) 1165 qdf_mem_free(buf); 1166 1167 return ret; 1168 } 1169 1170 /** 1171 * usb_hif_submit_ctrl_in() - recv a resonse to the ctrl message sent out 1172 * @device: HIF device for which urb needs to be received 1173 * @req: request value for the ctrl message 1174 * @value: USB message value 1175 * @index: USB message index value 1176 * @data: pointer to data containing ctrl message to be received 1177 * @size: size of the control message to be received 1178 * 1179 * Return: QDF_STATUS_SUCCESS if success else an appropriate QDF_STATUS error 1180 */ 1181 QDF_STATUS usb_hif_submit_ctrl_in(struct HIF_DEVICE_USB *device, 1182 uint8_t req, uint16_t value, uint16_t index, 1183 void *data, uint32_t size) 1184 { 1185 int32_t result = 0; 1186 QDF_STATUS ret = QDF_STATUS_SUCCESS; 1187 uint8_t *buf = NULL; 1188 1189 do { 1190 1191 if (size > 0) { 1192 buf = qdf_mem_malloc(size); 1193 if (!buf) { 1194 ret = QDF_STATUS_E_NOMEM; 1195 break; 1196 } 1197 } 1198 1199 hif_debug("ctrl-in req:0x%2.2X, value:0x%4.4X index:0x%4.4X, datasize:%d", 1200 req, value, index, size); 1201 1202 result = usb_control_msg(device->udev, 1203 usb_rcvctrlpipe(device->udev, 0), 1204 req, 1205 USB_DIR_IN | USB_TYPE_VENDOR | 1206 USB_RECIP_DEVICE, value, index, buf, 1207 size, 2 * HZ); 1208 1209 if (result < 0) { 1210 hif_err("usb_control_msg failed, (result=%d)", result); 1211 ret = QDF_STATUS_E_FAILURE; 1212 break; 1213 } 1214 1215 qdf_mem_copy((uint8_t *) data, buf, size); 1216 1217 } while (false); 1218 1219 if (buf) 1220 qdf_mem_free(buf); 1221 1222 return ret; 1223 } 1224 1225 /** 1226 * usb_hif_io_complete() - transmit call back for tx urb 1227 * @pipe: pointer to struct HIF_USB_PIPE 1228 * 1229 * Return: none 1230 */ 1231 static void usb_hif_io_complete(struct HIF_USB_PIPE *pipe) 1232 { 1233 qdf_nbuf_t buf; 1234 struct HIF_DEVICE_USB *device; 1235 HTC_FRAME_HDR *HtcHdr; 1236 uint8_t *data; 1237 uint32_t len; 1238 struct hif_usb_softc *sc = HIF_GET_USB_SOFTC(pipe->device); 1239 1240 device = pipe->device; 1241 HIF_ENTER(); 1242 while ((buf = skb_dequeue(&pipe->io_comp_queue))) { 1243 if (pipe->flags & HIF_USB_PIPE_FLAG_TX) { 1244 hif_debug("+athusb xmit callback buf:0x%pK", buf); 1245 HtcHdr = (HTC_FRAME_HDR *) 1246 qdf_nbuf_get_frag_vaddr(buf, 0); 1247 1248 #ifdef ATH_11AC_TXCOMPACT 1249 /* ATH_11AC_TXCOMPACT does not support High Latency mode */ 1250 #else 1251 device->htc_callbacks.txCompletionHandler(device-> 1252 htc_callbacks. 1253 Context, buf, 1254 HtcHdr-> 1255 EndpointID, 0); 1256 #endif 1257 hif_debug("-athusb xmit callback"); 1258 } else { 1259 hif_debug("+athusb recv callback buf: 0x%pK", buf); 1260 qdf_nbuf_peek_header(buf, &data, &len); 1261 1262 if (IS_FW_CRASH_DUMP(*((uint32_t *) data))) { 1263 sc->fw_data = data; 1264 sc->fw_data_len = len; 1265 device->htc_callbacks.fwEventHandler( 1266 device->htc_callbacks.Context, 1267 QDF_STATUS_E_USB_ERROR); 1268 qdf_nbuf_free(buf); 1269 } else { 1270 device->htc_callbacks.rxCompletionHandler( 1271 device->htc_callbacks.Context, buf, 1272 pipe->logical_pipe_num); 1273 } 1274 hif_debug("-athusb recv callback"); 1275 } 1276 } 1277 1278 HIF_EXIT(); 1279 } 1280 1281 #ifdef HIF_USB_TASKLET 1282 /** 1283 * usb_hif_io_comp_tasklet() - per pipe tasklet routine 1284 * @context: pointer to HIF USB pipe 1285 * 1286 * Return: none 1287 */ 1288 void usb_hif_io_comp_tasklet(unsigned long context) 1289 { 1290 struct HIF_USB_PIPE *pipe = (struct HIF_USB_PIPE *) context; 1291 1292 usb_hif_io_complete(pipe); 1293 } 1294 1295 #else 1296 /** 1297 * usb_hif_io_comp_work() - per pipe work queue 1298 * @work: pointer to struct work_struct 1299 * 1300 * Return: none 1301 */ 1302 void usb_hif_io_comp_work(struct work_struct *work) 1303 { 1304 struct HIF_USB_PIPE *pipe = container_of(work, struct HIF_USB_PIPE, 1305 io_complete_work); 1306 1307 usb_hif_io_complete(pipe); 1308 } 1309 #endif 1310