1 /* 2 * Copyright (c) 2013-2019 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 #include <qdf_time.h> 20 #include <qdf_lock.h> 21 #include <qdf_mem.h> 22 #include <qdf_util.h> 23 #include <qdf_defer.h> 24 #include <qdf_atomic.h> 25 #include <qdf_nbuf.h> 26 #include "qdf_net_types.h" 27 #include <hif_usb_internal.h> 28 #include <htc_services.h> 29 #include <hif_debug.h> 30 #define ATH_MODULE_NAME hif 31 #include <a_debug.h> 32 #include "qdf_module.h" 33 #include "hif_usb_internal.h" 34 #include "if_usb.h" 35 #include "usb_api.h" 36 #include "target_type.h" 37 38 #if defined(WLAN_DEBUG) || defined(DEBUG) 39 static ATH_DEBUG_MASK_DESCRIPTION g_hif_debug_description[] = { 40 {USB_HIF_DEBUG_CTRL_TRANS, "Control Transfers"}, 41 {USB_HIF_DEBUG_BULK_IN, "BULK In Transfers"}, 42 {USB_HIF_DEBUG_BULK_OUT, "BULK Out Transfers"}, 43 {USB_HIF_DEBUG_DUMP_DATA, "Dump data"}, 44 {USB_HIF_DEBUG_ENUM, "Enumeration"}, 45 }; 46 47 ATH_DEBUG_INSTANTIATE_MODULE_VAR(hif, 48 "hif", 49 "USB Host Interface", 50 ATH_DEBUG_MASK_DEFAULTS | ATH_DEBUG_INFO | 51 USB_HIF_DEBUG_ENUM, 52 ATH_DEBUG_DESCRIPTION_COUNT 53 (g_hif_debug_description), 54 g_hif_debug_description); 55 56 #endif 57 58 #ifdef USB_ISOC_SUPPORT 59 unsigned int hif_usb_isoch_vo = 1; 60 #else 61 unsigned int hif_usb_isoch_vo; 62 #endif 63 unsigned int hif_usb_disable_rxdata2 = 1; 64 65 /** 66 * usb_hif_usb_transmit_complete() - completion routing for tx urb's 67 * @urb: pointer to urb for which tx completion is called 68 * 69 * Return: none 70 */ 71 static void usb_hif_usb_transmit_complete(struct urb *urb) 72 { 73 struct HIF_URB_CONTEXT *urb_context = 74 (struct HIF_URB_CONTEXT *)urb->context; 75 qdf_nbuf_t buf; 76 struct HIF_USB_PIPE *pipe = urb_context->pipe; 77 struct hif_usb_send_context *send_context; 78 79 HIF_DBG("+%s: pipe: %d, stat:%d, len:%d", __func__, 80 pipe->logical_pipe_num, urb->status, urb->actual_length); 81 82 /* this urb is not pending anymore */ 83 usb_hif_remove_pending_transfer(urb_context); 84 85 if (urb->status != 0) { 86 HIF_ERROR("%s: pipe: %d, failed:%d", 87 __func__, pipe->logical_pipe_num, urb->status); 88 } 89 90 buf = urb_context->buf; 91 send_context = urb_context->send_context; 92 93 if (send_context->new_alloc) 94 qdf_mem_free(send_context); 95 else 96 qdf_nbuf_pull_head(buf, send_context->head_data_len); 97 98 urb_context->buf = NULL; 99 usb_hif_cleanup_transmit_urb(urb_context); 100 101 /* note: queue implements a lock */ 102 skb_queue_tail(&pipe->io_comp_queue, buf); 103 HIF_USB_SCHEDULE_WORK(pipe); 104 105 HIF_DBG("-%s", __func__); 106 } 107 108 /** 109 * hif_send_internal() - HIF internal routine to prepare and submit tx urbs 110 * @hif_usb_device: pointer to HIF_DEVICE_USB structure 111 * @pipe_id: HIF pipe on which data is to be sent 112 * @hdr_buf: any header buf to be prepended, currently ignored 113 * @buf: qdf_nbuf_t containing data to be transmitted 114 * @nbytes: number of bytes to be transmitted 115 * 116 * Return: QDF_STATUS_SUCCESS on success and error QDF status on failure 117 */ 118 static QDF_STATUS hif_send_internal(struct HIF_DEVICE_USB *hif_usb_device, 119 uint8_t pipe_id, 120 qdf_nbuf_t hdr_buf, 121 qdf_nbuf_t buf, unsigned int nbytes) 122 { 123 QDF_STATUS status = QDF_STATUS_SUCCESS; 124 struct HIF_DEVICE_USB *device = hif_usb_device; 125 struct HIF_USB_PIPE *pipe = &device->pipes[pipe_id]; 126 struct HIF_URB_CONTEXT *urb_context; 127 uint8_t *data; 128 uint32_t len; 129 struct urb *urb; 130 int usb_status; 131 int i; 132 struct hif_usb_send_context *send_context; 133 uint8_t frag_count; 134 uint32_t head_data_len, tmp_frag_count = 0; 135 unsigned char *data_ptr; 136 137 HIF_DBG("+%s pipe : %d, buf:0x%pK nbytes %u", 138 __func__, pipe_id, buf, nbytes); 139 140 frag_count = qdf_nbuf_get_num_frags(buf); 141 if (frag_count == 1) { 142 /* 143 * | hif_usb_send_context | netbuf->data 144 */ 145 head_data_len = sizeof(struct hif_usb_send_context); 146 } else if ((frag_count - 1) <= QDF_NBUF_CB_TX_MAX_EXTRA_FRAGS) { 147 /* 148 * means have extra fragment buf in skb 149 * header data length should be total sending length subtract 150 * internal data length of netbuf 151 * | hif_usb_send_context | fragments except internal buffer | 152 * netbuf->data 153 */ 154 head_data_len = sizeof(struct hif_usb_send_context); 155 while (tmp_frag_count < (frag_count - 1)) { 156 head_data_len = 157 head_data_len + qdf_nbuf_get_frag_len(buf, 158 tmp_frag_count); 159 tmp_frag_count = tmp_frag_count + 1; 160 } 161 } else { 162 /* Extra fragments overflow */ 163 HIF_ERROR("%s Extra fragments count overflow : %d\n", 164 __func__, frag_count); 165 status = QDF_STATUS_E_RESOURCES; 166 goto err; 167 } 168 169 /* Check whether head room is enough to save extra head data */ 170 if (head_data_len <= qdf_nbuf_headroom(buf)) { 171 send_context = (struct hif_usb_send_context *) 172 qdf_nbuf_push_head(buf, head_data_len); 173 send_context->new_alloc = false; 174 } else { 175 send_context = 176 qdf_mem_malloc(sizeof(struct hif_usb_send_context) 177 + head_data_len + nbytes); 178 if (!send_context) { 179 status = QDF_STATUS_E_NOMEM; 180 goto err; 181 } 182 send_context->new_alloc = true; 183 } 184 send_context->netbuf = buf; 185 send_context->hif_usb_device = hif_usb_device; 186 send_context->transfer_id = pipe_id; 187 send_context->head_data_len = head_data_len; 188 /* 189 * Copy data to head part of netbuf or head of allocated buffer. 190 * if buffer is new allocated, the last buffer should be copied also. 191 * It assume last fragment is internal buffer of netbuf 192 * sometime total length of fragments larger than nbytes 193 */ 194 data_ptr = (unsigned char *)send_context + 195 sizeof(struct hif_usb_send_context); 196 for (i = 0; 197 i < (send_context->new_alloc ? frag_count : frag_count - 1); i++) { 198 int frag_len = qdf_nbuf_get_frag_len(buf, i); 199 unsigned char *frag_addr = qdf_nbuf_get_frag_vaddr(buf, i); 200 201 qdf_mem_copy(data_ptr, frag_addr, frag_len); 202 data_ptr += frag_len; 203 } 204 /* Reset pData pointer and send out */ 205 data_ptr = (unsigned char *)send_context + 206 sizeof(struct hif_usb_send_context); 207 208 urb_context = usb_hif_alloc_urb_from_pipe(pipe); 209 if (!urb_context) { 210 /* TODO : note, it is possible to run out of urbs if 2 211 * endpoints map to the same pipe ID 212 */ 213 HIF_ERROR("%s pipe:%d no urbs left. URB Cnt : %d", 214 __func__, pipe_id, pipe->urb_cnt); 215 status = QDF_STATUS_E_RESOURCES; 216 goto err; 217 } 218 urb_context->send_context = send_context; 219 urb = urb_context->urb; 220 urb_context->buf = buf; 221 data = data_ptr; 222 len = nbytes; 223 224 usb_fill_bulk_urb(urb, 225 device->udev, 226 pipe->usb_pipe_handle, 227 data, 228 (len % pipe->max_packet_size) == 229 0 ? (len + 1) : len, 230 usb_hif_usb_transmit_complete, urb_context); 231 232 if ((len % pipe->max_packet_size) == 0) 233 /* hit a max packet boundary on this pipe */ 234 235 HIF_DBG 236 ("athusb bulk send submit:%d, 0x%X (ep:0x%2.2X), %d bytes", 237 pipe->logical_pipe_num, pipe->usb_pipe_handle, 238 pipe->ep_address, nbytes); 239 240 usb_hif_enqueue_pending_transfer(pipe, urb_context); 241 usb_status = usb_submit_urb(urb, GFP_ATOMIC); 242 if (usb_status) { 243 if (send_context->new_alloc) 244 qdf_mem_free(send_context); 245 else 246 qdf_nbuf_pull_head(buf, head_data_len); 247 urb_context->buf = NULL; 248 HIF_ERROR("athusb : usb bulk transmit failed %d", 249 usb_status); 250 usb_hif_remove_pending_transfer(urb_context); 251 usb_hif_cleanup_transmit_urb(urb_context); 252 status = QDF_STATUS_E_FAILURE; 253 goto err; 254 } 255 256 err: 257 if (!QDF_IS_STATUS_SUCCESS(status) && 258 (status != QDF_STATUS_E_RESOURCES)) { 259 HIF_ERROR("athusb send failed %d", status); 260 } 261 262 HIF_DBG("-%s pipe : %d", __func__, pipe_id); 263 264 return status; 265 } 266 267 /** 268 * hif_send_head() - HIF routine exposed to upper layers to send data 269 * @scn: pointer to hif_opaque_softc structure 270 * @pipe_id: HIF pipe on which data is to be sent 271 * @transfer_id: endpoint ID on which data is to be sent 272 * @nbytes: number of bytes to be transmitted 273 * @wbuf: qdf_nbuf_t containing data to be transmitted 274 * @hdr_buf: any header buf to be prepended, currently ignored 275 * @data_attr: data_attr field from cvg_nbuf_cb of wbuf 276 * 277 * Return: QDF_STATUS_SUCCESS on success and error QDF status on failure 278 */ 279 QDF_STATUS hif_send_head(struct hif_opaque_softc *scn, uint8_t pipe_id, 280 uint32_t transfer_id, uint32_t nbytes, 281 qdf_nbuf_t wbuf, uint32_t data_attr) 282 { 283 QDF_STATUS status = QDF_STATUS_SUCCESS; 284 struct HIF_DEVICE_USB *device = HIF_GET_USB_DEVICE(scn); 285 286 status = hif_send_internal(device, pipe_id, NULL, wbuf, nbytes); 287 return status; 288 } 289 290 /** 291 * hif_get_free_queue_number() - get # of free TX resources in a given HIF pipe 292 * @scn: pointer to hif_opaque_softc structure 293 * @pipe_id: HIF pipe which is being polled for free resources 294 * 295 * Return: # of free resources in pipe_id 296 */ 297 uint16_t hif_get_free_queue_number(struct hif_opaque_softc *scn, 298 uint8_t pipe_id) 299 { 300 struct HIF_DEVICE_USB *device = HIF_GET_USB_DEVICE(scn); 301 302 return device->pipes[pipe_id].urb_cnt; 303 } 304 305 /** 306 * hif_post_init() - copy HTC callbacks to HIF 307 * @scn: pointer to hif_opaque_softc structure 308 * @target: pointer to HTC_TARGET structure 309 * @callbacks: htc callbacks 310 * 311 * Return: none 312 */ 313 void hif_post_init(struct hif_opaque_softc *scn, void *target, 314 struct hif_msg_callbacks *callbacks) 315 { 316 struct HIF_DEVICE_USB *device = HIF_GET_USB_DEVICE(scn); 317 318 qdf_mem_copy(&device->htc_callbacks, callbacks, 319 sizeof(device->htc_callbacks)); 320 } 321 322 /** 323 * hif_detach_htc() - remove HTC callbacks from HIF 324 * @scn: pointer to hif_opaque_softc structure 325 * 326 * Return: none 327 */ 328 void hif_detach_htc(struct hif_opaque_softc *scn) 329 { 330 struct HIF_DEVICE_USB *device = HIF_GET_USB_DEVICE(scn); 331 332 usb_hif_flush_all(device); 333 qdf_mem_zero(&device->htc_callbacks, sizeof(device->htc_callbacks)); 334 } 335 336 /** 337 * hif_usb_device_deinit() - de- init HIF_DEVICE_USB, cleanup pipe resources 338 * @sc: pointer to hif_usb_softc structure 339 * 340 * Return: None 341 */ 342 void hif_usb_device_deinit(struct hif_usb_softc *sc) 343 { 344 struct HIF_DEVICE_USB *device = &sc->hif_hdl; 345 346 HIF_TRACE("+%s", __func__); 347 348 usb_hif_cleanup_pipe_resources(device); 349 350 if (device->diag_cmd_buffer) 351 qdf_mem_free(device->diag_cmd_buffer); 352 353 if (device->diag_resp_buffer) 354 qdf_mem_free(device->diag_resp_buffer); 355 356 HIF_TRACE("-%s", __func__); 357 } 358 359 /** 360 * hif_usb_device_init() - init HIF_DEVICE_USB, setup pipe resources 361 * @sc: pointer to hif_usb_softc structure 362 * 363 * Return: QDF_STATUS_SUCCESS on success or a QDF error 364 */ 365 QDF_STATUS hif_usb_device_init(struct hif_usb_softc *sc) 366 { 367 int i; 368 struct HIF_DEVICE_USB *device = &sc->hif_hdl; 369 struct usb_interface *interface = sc->interface; 370 struct usb_device *dev = interface_to_usbdev(interface); 371 QDF_STATUS status = QDF_STATUS_SUCCESS; 372 struct HIF_USB_PIPE *pipe; 373 374 HIF_TRACE("+%s", __func__); 375 376 do { 377 378 qdf_spinlock_create(&(device->cs_lock)); 379 qdf_spinlock_create(&(device->rx_lock)); 380 qdf_spinlock_create(&(device->tx_lock)); 381 device->udev = dev; 382 device->interface = interface; 383 384 HIF_ERROR("%s device %pK device->udev %pK device->interface %pK", 385 __func__, 386 device, 387 device->udev, 388 device->interface); 389 390 for (i = 0; i < HIF_USB_PIPE_MAX; i++) { 391 pipe = &device->pipes[i]; 392 393 HIF_USB_INIT_WORK(pipe); 394 skb_queue_head_init(&pipe->io_comp_queue); 395 } 396 397 device->diag_cmd_buffer = 398 qdf_mem_malloc(USB_CTRL_MAX_DIAG_CMD_SIZE); 399 if (!device->diag_cmd_buffer) { 400 status = QDF_STATUS_E_NOMEM; 401 break; 402 } 403 device->diag_resp_buffer = 404 qdf_mem_malloc(USB_CTRL_MAX_DIAG_RESP_SIZE); 405 if (!device->diag_resp_buffer) { 406 status = QDF_STATUS_E_NOMEM; 407 break; 408 } 409 410 status = usb_hif_setup_pipe_resources(device); 411 412 } while (false); 413 414 if (hif_is_supported_rx_ctrl_pipe(HIF_GET_SOFTC(sc))) 415 device->rx_ctrl_pipe_supported = 1; 416 417 if (status != QDF_STATUS_SUCCESS) 418 HIF_ERROR("%s: abnormal condition", __func__); 419 420 HIF_TRACE("+%s", __func__); 421 return status; 422 } 423 424 /** 425 * hif_start() - Enable HIF TX and RX 426 * @scn: pointer to hif_opaque_softc structure 427 * 428 * Return: QDF_STATUS_SUCCESS if success else an appropriate QDF_STATUS error 429 */ 430 QDF_STATUS hif_start(struct hif_opaque_softc *scn) 431 { 432 struct HIF_DEVICE_USB *device = HIF_GET_USB_DEVICE(scn); 433 int i; 434 435 HIF_TRACE("+%s", __func__); 436 usb_hif_prestart_recv_pipes(device); 437 438 /* set the TX resource avail threshold for each TX pipe */ 439 for (i = HIF_TX_CTRL_PIPE; i <= HIF_TX_DATA_HP_PIPE; i++) { 440 device->pipes[i].urb_cnt_thresh = 441 device->pipes[i].urb_alloc / 2; 442 } 443 444 HIF_TRACE("-%s", __func__); 445 return QDF_STATUS_SUCCESS; 446 } 447 448 /** 449 * hif_usb_stop_device() - Stop/flush all HIF communication 450 * @scn: pointer to hif_opaque_softc structure 451 * 452 * Return: none 453 */ 454 void hif_usb_stop_device(struct hif_softc *hif_sc) 455 { 456 struct HIF_DEVICE_USB *device = HIF_GET_USB_DEVICE(hif_sc); 457 458 HIF_TRACE("+%s", __func__); 459 460 usb_hif_flush_all(device); 461 462 HIF_TRACE("-%s", __func__); 463 } 464 465 /** 466 * hif_get_default_pipe() - get default pipes for HIF TX/RX 467 * @scn: pointer to hif_opaque_softc structure 468 * @ul_pipe: pointer to TX pipe 469 * @ul_pipe: pointer to TX pipe 470 * 471 * Return: none 472 */ 473 void hif_get_default_pipe(struct hif_opaque_softc *scn, uint8_t *ul_pipe, 474 uint8_t *dl_pipe) 475 { 476 *ul_pipe = HIF_TX_CTRL_PIPE; 477 *dl_pipe = HIF_RX_CTRL_PIPE; 478 } 479 480 #if defined(USB_MULTI_IN_TEST) || defined(USB_ISOC_TEST) 481 /** 482 * hif_map_service_to_pipe() - maps ul/dl pipe to service id. 483 * @scn: HIF context 484 * @svc_id: sevice index 485 * @ul_pipe: pointer to uplink pipe id 486 * @dl_pipe: pointer to down-linklink pipe id 487 * @ul_is_polled: if ul is polling based 488 * @ul_is_polled: if dl is polling based 489 * 490 * Return: QDF_STATUS_SUCCESS if success else an appropriate QDF_STATUS error 491 */ 492 int hif_map_service_to_pipe(struct hif_opaque_softc *scn, uint16_t svc_id, 493 uint8_t *ul_pipe, uint8_t *dl_pipe, 494 int *ul_is_polled, int *dl_is_polled) 495 { 496 QDF_STATUS status = QDF_STATUS_SUCCESS; 497 498 switch (svc_id) { 499 case HTC_CTRL_RSVD_SVC: 500 case WMI_CONTROL_SVC: 501 case HTC_RAW_STREAMS_SVC: 502 *ul_pipe = HIF_TX_CTRL_PIPE; 503 *dl_pipe = HIF_RX_DATA_PIPE; 504 break; 505 case WMI_DATA_BE_SVC: 506 *ul_pipe = HIF_TX_DATA_LP_PIPE; 507 *dl_pipe = HIF_RX_DATA_PIPE; 508 break; 509 case WMI_DATA_BK_SVC: 510 *ul_pipe = HIF_TX_DATA_MP_PIPE; 511 *dl_pipe = HIF_RX_DATA2_PIPE; 512 break; 513 case WMI_DATA_VI_SVC: 514 *ul_pipe = HIF_TX_DATA_HP_PIPE; 515 *dl_pipe = HIF_RX_DATA_PIPE; 516 break; 517 case WMI_DATA_VO_SVC: 518 *ul_pipe = HIF_TX_DATA_LP_PIPE; 519 *dl_pipe = HIF_RX_DATA_PIPE; 520 break; 521 default: 522 status = QDF_STATUS_E_FAILURE; 523 break; 524 } 525 526 return status; 527 } 528 #else 529 530 #ifdef QCA_TX_HTT2_SUPPORT 531 #define USB_TX_CHECK_HTT2_SUPPORT 1 532 #else 533 #define USB_TX_CHECK_HTT2_SUPPORT 0 534 #endif 535 536 /** 537 * hif_map_service_to_pipe() - maps ul/dl pipe to service id. 538 * @scn: HIF context 539 * @svc_id: sevice index 540 * @ul_pipe: pointer to uplink pipe id 541 * @dl_pipe: pointer to down-linklink pipe id 542 * @ul_is_polled: if ul is polling based 543 * @ul_is_polled: if dl is polling based 544 * 545 * Return: QDF_STATUS_SUCCESS if success else an appropriate QDF_STATUS error 546 */ 547 int hif_map_service_to_pipe(struct hif_opaque_softc *scn, uint16_t svc_id, 548 uint8_t *ul_pipe, uint8_t *dl_pipe, 549 int *ul_is_polled, int *dl_is_polled) 550 { 551 QDF_STATUS status = QDF_STATUS_SUCCESS; 552 struct HIF_DEVICE_USB *device = HIF_GET_USB_DEVICE(scn); 553 554 switch (svc_id) { 555 case HTC_CTRL_RSVD_SVC: 556 case WMI_CONTROL_SVC: 557 *ul_pipe = HIF_TX_CTRL_PIPE; 558 if (device->rx_ctrl_pipe_supported) 559 *dl_pipe = HIF_RX_CTRL_PIPE; 560 else 561 *dl_pipe = HIF_RX_DATA_PIPE; 562 break; 563 case WMI_DATA_BE_SVC: 564 case WMI_DATA_BK_SVC: 565 *ul_pipe = HIF_TX_DATA_LP_PIPE; 566 if (hif_usb_disable_rxdata2) 567 *dl_pipe = HIF_RX_DATA_PIPE; 568 else 569 *dl_pipe = HIF_RX_DATA2_PIPE; 570 break; 571 case WMI_DATA_VI_SVC: 572 *ul_pipe = HIF_TX_DATA_MP_PIPE; 573 if (hif_usb_disable_rxdata2) 574 *dl_pipe = HIF_RX_DATA_PIPE; 575 else 576 *dl_pipe = HIF_RX_DATA2_PIPE; 577 break; 578 case WMI_DATA_VO_SVC: 579 *ul_pipe = HIF_TX_DATA_HP_PIPE; 580 if (hif_usb_disable_rxdata2) 581 *dl_pipe = HIF_RX_DATA_PIPE; 582 else 583 *dl_pipe = HIF_RX_DATA2_PIPE; 584 break; 585 case HTC_RAW_STREAMS_SVC: 586 *ul_pipe = HIF_TX_CTRL_PIPE; 587 *dl_pipe = HIF_RX_DATA_PIPE; 588 break; 589 case HTT_DATA_MSG_SVC: 590 *ul_pipe = HIF_TX_DATA_LP_PIPE; 591 if (hif_usb_disable_rxdata2) 592 *dl_pipe = HIF_RX_DATA_PIPE; 593 else 594 *dl_pipe = HIF_RX_DATA2_PIPE; 595 break; 596 case HTT_DATA2_MSG_SVC: 597 if (USB_TX_CHECK_HTT2_SUPPORT) { 598 *ul_pipe = HIF_TX_DATA_HP_PIPE; 599 if (hif_usb_disable_rxdata2) 600 *dl_pipe = HIF_RX_DATA_PIPE; 601 else 602 *dl_pipe = HIF_RX_DATA2_PIPE; 603 } 604 break; 605 default: 606 status = QDF_STATUS_E_FAILURE; 607 break; 608 } 609 610 return status; 611 } 612 #endif 613 614 /** 615 * hif_ctrl_msg_exchange() - send usb ctrl message and receive response 616 * @macp: pointer to HIF_DEVICE_USB 617 * @send_req_val: USB send message request value 618 * @send_msg: pointer to data to send 619 * @len: length in bytes of the data to send 620 * @response_req_val: USB response message request value 621 * @response_msg: pointer to response msg 622 * @response_len: length of the response message 623 * 624 * Return: QDF_STATUS_SUCCESS if success else an appropriate QDF_STATUS error 625 */ 626 static QDF_STATUS hif_ctrl_msg_exchange(struct HIF_DEVICE_USB *macp, 627 uint8_t send_req_val, 628 uint8_t *send_msg, 629 uint32_t len, 630 uint8_t response_req_val, 631 uint8_t *response_msg, 632 uint32_t *response_len) 633 { 634 QDF_STATUS status; 635 636 do { 637 638 /* send command */ 639 status = usb_hif_submit_ctrl_out(macp, send_req_val, 0, 0, 640 send_msg, len); 641 642 if (!QDF_IS_STATUS_SUCCESS(status)) 643 break; 644 645 if (!response_msg) { 646 /* no expected response */ 647 break; 648 } 649 650 /* get response */ 651 status = usb_hif_submit_ctrl_in(macp, response_req_val, 0, 0, 652 response_msg, *response_len); 653 654 if (!QDF_IS_STATUS_SUCCESS(status)) 655 break; 656 657 } while (false); 658 659 return status; 660 } 661 662 #ifdef WLAN_FEATURE_BMI 663 /** 664 * hif_exchange_bmi_msg() - send/recev ctrl message of type BMI_CMD/BMI_RESP 665 * @scn: pointer to hif_opaque_softc 666 * @bmi_request: pointer to data to send 667 * @request_length: length in bytes of the data to send 668 * @bmi_response: pointer to response msg 669 * @bmi_response_length: length of the response message 670 * @timeout_ms: timeout to wait for response (ignored in current implementation) 671 * 672 * Return: QDF_STATUS_SUCCESS if success else an appropriate QDF_STATUS error 673 */ 674 675 QDF_STATUS hif_exchange_bmi_msg(struct hif_opaque_softc *scn, 676 qdf_dma_addr_t cmd, qdf_dma_addr_t rsp, 677 uint8_t *bmi_request, 678 uint32_t request_length, 679 uint8_t *bmi_response, 680 uint32_t *bmi_response_lengthp, 681 uint32_t timeout_ms) 682 { 683 struct HIF_DEVICE_USB *macp = HIF_GET_USB_DEVICE(scn); 684 685 return hif_ctrl_msg_exchange(macp, 686 USB_CONTROL_REQ_SEND_BMI_CMD, 687 bmi_request, 688 request_length, 689 USB_CONTROL_REQ_RECV_BMI_RESP, 690 bmi_response, bmi_response_lengthp); 691 } 692 693 void hif_register_bmi_callbacks(struct hif_opaque_softc *hif_ctx) 694 { 695 } 696 #endif /* WLAN_FEATURE_BMI */ 697 698 /** 699 * hif_diag_read_access() - Read data from target memory or register 700 * @scn: pointer to hif_opaque_softc 701 * @address: register address to read from 702 * @data: pointer to buffer to store the value read from the register 703 * 704 * Return: QDF_STATUS_SUCCESS if success else an appropriate QDF_STATUS error 705 */ 706 QDF_STATUS hif_diag_read_access(struct hif_opaque_softc *scn, uint32_t address, 707 uint32_t *data) 708 { 709 struct HIF_DEVICE_USB *macp = HIF_GET_USB_DEVICE(scn); 710 QDF_STATUS status; 711 USB_CTRL_DIAG_CMD_READ *cmd; 712 uint32_t respLength; 713 714 cmd = (USB_CTRL_DIAG_CMD_READ *) macp->diag_cmd_buffer; 715 716 qdf_mem_zero(cmd, sizeof(*cmd)); 717 cmd->Cmd = USB_CTRL_DIAG_CC_READ; 718 cmd->Address = address; 719 respLength = sizeof(USB_CTRL_DIAG_RESP_READ); 720 721 status = hif_ctrl_msg_exchange(macp, 722 USB_CONTROL_REQ_DIAG_CMD, 723 (uint8_t *) cmd, 724 sizeof(*cmd), 725 USB_CONTROL_REQ_DIAG_RESP, 726 macp->diag_resp_buffer, &respLength); 727 728 if (QDF_IS_STATUS_SUCCESS(status)) { 729 USB_CTRL_DIAG_RESP_READ *pResp = 730 (USB_CTRL_DIAG_RESP_READ *) macp->diag_resp_buffer; 731 *data = pResp->ReadValue; 732 status = QDF_STATUS_SUCCESS; 733 } else { 734 status = QDF_STATUS_E_FAILURE; 735 } 736 737 return status; 738 } 739 740 /** 741 * hif_diag_write_access() - write data to target memory or register 742 * @scn: pointer to hif_opaque_softc 743 * @address: register address to write to 744 * @data: value to be written to the address 745 * 746 * Return: QDF_STATUS_SUCCESS if success else an appropriate QDF_STATUS error 747 */ 748 QDF_STATUS hif_diag_write_access(struct hif_opaque_softc *scn, 749 uint32_t address, 750 uint32_t data) 751 { 752 struct HIF_DEVICE_USB *macp = HIF_GET_USB_DEVICE(scn); 753 USB_CTRL_DIAG_CMD_WRITE *cmd; 754 755 cmd = (USB_CTRL_DIAG_CMD_WRITE *) macp->diag_cmd_buffer; 756 757 qdf_mem_zero(cmd, sizeof(*cmd)); 758 cmd->Cmd = USB_CTRL_DIAG_CC_WRITE; 759 cmd->Address = address; 760 cmd->Value = data; 761 762 return hif_ctrl_msg_exchange(macp, 763 USB_CONTROL_REQ_DIAG_CMD, 764 (uint8_t *) cmd, 765 sizeof(*cmd), 0, NULL, 0); 766 } 767 768 /** 769 * hif_dump_info() - dump info about all HIF pipes and endpoints 770 * @scn: pointer to hif_opaque_softc 771 * 772 * Return: none 773 */ 774 void hif_dump_info(struct hif_opaque_softc *scn) 775 { 776 struct HIF_DEVICE_USB *device = HIF_GET_USB_DEVICE(scn); 777 struct HIF_USB_PIPE *pipe = NULL; 778 struct usb_host_interface *iface_desc = NULL; 779 struct usb_endpoint_descriptor *ep_desc; 780 uint8_t i = 0; 781 782 for (i = 0; i < HIF_USB_PIPE_MAX; i++) { 783 pipe = &device->pipes[i]; 784 HIF_ERROR("PipeIndex : %d URB Cnt : %d PipeHandle : %x", 785 i, pipe->urb_cnt, 786 pipe->usb_pipe_handle); 787 if (usb_pipeisoc(pipe->usb_pipe_handle)) 788 HIF_INFO("Pipe Type ISOC"); 789 else if (usb_pipebulk(pipe->usb_pipe_handle)) 790 HIF_INFO("Pipe Type BULK"); 791 else if (usb_pipeint(pipe->usb_pipe_handle)) 792 HIF_INFO("Pipe Type INT"); 793 else if (usb_pipecontrol(pipe->usb_pipe_handle)) 794 HIF_INFO("Pipe Type control"); 795 } 796 797 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 798 ep_desc = &iface_desc->endpoint[i].desc; 799 if (ep_desc) { 800 HIF_INFO( 801 "ep_desc : %pK Index : %d: DescType : %d Addr : %d Maxp : %d Atrrib : %d", 802 ep_desc, i, ep_desc->bDescriptorType, 803 ep_desc->bEndpointAddress, 804 ep_desc->wMaxPacketSize, 805 ep_desc->bmAttributes); 806 if ((ep_desc) && (usb_endpoint_type(ep_desc) == 807 USB_ENDPOINT_XFER_ISOC)) { 808 HIF_INFO("ISOC EP Detected"); 809 } 810 } 811 } 812 813 } 814 815 /** 816 * hif_flush_surprise_remove() - Cleanup residual buffers for device shutdown 817 * @scn: HIF context 818 * 819 * Not applicable to USB bus 820 * 821 * Return: none 822 */ 823 void hif_flush_surprise_remove(struct hif_opaque_softc *scn) 824 { 825 /* TO DO... */ 826 } 827 828 /** 829 * hif_diag_read_mem() -read nbytes of data from target memory or register 830 * @scn: pointer to hif_opaque_softc 831 * @address: register address to read from 832 * @data: buffer to store the value read 833 * @nbytes: number of bytes to be read from 'address' 834 * 835 * Return: QDF_STATUS_SUCCESS if success else an appropriate QDF_STATUS error 836 */ 837 QDF_STATUS hif_diag_read_mem(struct hif_opaque_softc *scn, 838 uint32_t address, uint8_t *data, 839 int nbytes) 840 { 841 QDF_STATUS status = QDF_STATUS_SUCCESS; 842 843 HIF_TRACE("+%s", __func__); 844 845 if ((address & 0x3) || ((uintptr_t)data & 0x3)) 846 return QDF_STATUS_E_IO; 847 848 while ((nbytes >= 4) && 849 QDF_IS_STATUS_SUCCESS(status = 850 hif_diag_read_access(scn, 851 address, 852 (uint32_t *)data))) { 853 854 nbytes -= sizeof(uint32_t); 855 address += sizeof(uint32_t); 856 data += sizeof(uint32_t); 857 858 } 859 HIF_TRACE("-%s", __func__); 860 return status; 861 } 862 qdf_export_symbol(hif_diag_read_mem); 863 864 /** 865 * hif_diag_write_mem() -write nbytes of data to target memory or register 866 * @scn: pointer to hif_opaque_softc 867 * @address: register address to write to 868 * @data: buffer containing data to be written 869 * @nbytes: number of bytes to be written 870 * 871 * Return: QDF_STATUS_SUCCESS if success else an appropriate QDF_STATUS error 872 */ 873 QDF_STATUS hif_diag_write_mem(struct hif_opaque_softc *scn, 874 uint32_t address, 875 uint8_t *data, int nbytes) 876 { 877 QDF_STATUS status = QDF_STATUS_SUCCESS; 878 879 HIF_TRACE("+%s", __func__); 880 if ((address & 0x3) || ((uintptr_t)data & 0x3)) 881 return QDF_STATUS_E_IO; 882 883 while (nbytes >= 4 && 884 QDF_IS_STATUS_SUCCESS(status = 885 hif_diag_write_access(scn, 886 address, 887 *((uint32_t *)data)))) { 888 889 nbytes -= sizeof(uint32_t); 890 address += sizeof(uint32_t); 891 data += sizeof(uint32_t); 892 893 } 894 HIF_TRACE("-%s", __func__); 895 return status; 896 } 897 898 void hif_send_complete_check(struct hif_opaque_softc *scn, 899 uint8_t PipeID, int force) 900 { 901 /* NO-OP*/ 902 } 903 904 /* diagnostic command defnitions */ 905 #define USB_CTRL_DIAG_CC_READ 0 906 #define USB_CTRL_DIAG_CC_WRITE 1 907 #define USB_CTRL_DIAG_CC_WARM_RESET 2 908 909 void hif_suspend_wow(struct hif_opaque_softc *scn) 910 { 911 HIF_INFO("HIFsuspendwow - TODO"); 912 } 913 914 /** 915 * hif_usb_set_bundle_mode() - enable bundling and set default rx bundle cnt 916 * @scn: pointer to hif_opaque_softc structure 917 * @enabled: flag to enable/disable bundling 918 * @rx_bundle_cnt: bundle count to be used for RX 919 * 920 * Return: none 921 */ 922 void hif_usb_set_bundle_mode(struct hif_softc *scn, 923 bool enabled, int rx_bundle_cnt) 924 { 925 struct HIF_DEVICE_USB *device = HIF_GET_USB_DEVICE(scn); 926 927 device->is_bundle_enabled = enabled; 928 device->rx_bundle_cnt = rx_bundle_cnt; 929 if (device->is_bundle_enabled && (device->rx_bundle_cnt == 0)) 930 device->rx_bundle_cnt = 1; 931 932 device->rx_bundle_buf_len = device->rx_bundle_cnt * 933 HIF_USB_RX_BUNDLE_ONE_PKT_SIZE; 934 935 HIF_DBG("athusb bundle %s cnt %d", enabled ? "enabled" : "disabled", 936 rx_bundle_cnt); 937 } 938 939 /** 940 * hif_is_supported_rx_ctrl_pipe() - return true if device supports exclusive 941 * control pipe in the RX direction. 942 * @scn: hif context 943 * 944 * Return: true if device supports RX control pipe. 945 */ 946 bool hif_is_supported_rx_ctrl_pipe(struct hif_softc *scn) 947 { 948 struct hif_opaque_softc *hif_hdl = GET_HIF_OPAQUE_HDL(scn); 949 struct hif_target_info *tgt_info = hif_get_target_info_handle(hif_hdl); 950 951 switch (tgt_info->target_type) { 952 case TARGET_TYPE_QCN7605: 953 return true; 954 default: 955 return false; 956 } 957 } 958