1 /* 2 * NXP Wireless LAN device driver: commands and events 3 * 4 * Copyright 2011-2020 NXP 5 * 6 * This software file (the "File") is distributed by NXP 7 * under the terms of the GNU General Public License Version 2, June 1991 8 * (the "License"). You may use, redistribute and/or modify this File in 9 * accordance with the terms and conditions of the License, a copy of which 10 * is available by writing to the Free Software Foundation, Inc., 11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the 12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. 13 * 14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE 16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about 17 * this warranty disclaimer. 18 */ 19 20 #include <asm/unaligned.h> 21 #include "decl.h" 22 #include "ioctl.h" 23 #include "util.h" 24 #include "fw.h" 25 #include "main.h" 26 #include "wmm.h" 27 #include "11n.h" 28 29 static void mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter); 30 31 /* 32 * This function initializes a command node. 33 * 34 * The actual allocation of the node is not done by this function. It only 35 * initiates a node by filling it with default parameters. Similarly, 36 * allocation of the different buffers used (IOCTL buffer, data buffer) are 37 * not done by this function either. 38 */ 39 static void 40 mwifiex_init_cmd_node(struct mwifiex_private *priv, 41 struct cmd_ctrl_node *cmd_node, 42 u32 cmd_no, void *data_buf, bool sync) 43 { 44 cmd_node->priv = priv; 45 cmd_node->cmd_no = cmd_no; 46 47 if (sync) { 48 cmd_node->wait_q_enabled = true; 49 cmd_node->cmd_wait_q_woken = false; 50 cmd_node->condition = &cmd_node->cmd_wait_q_woken; 51 } 52 cmd_node->data_buf = data_buf; 53 cmd_node->cmd_skb = cmd_node->skb; 54 } 55 56 /* 57 * This function returns a command node from the free queue depending upon 58 * availability. 59 */ 60 static struct cmd_ctrl_node * 61 mwifiex_get_cmd_node(struct mwifiex_adapter *adapter) 62 { 63 struct cmd_ctrl_node *cmd_node; 64 65 spin_lock_bh(&adapter->cmd_free_q_lock); 66 if (list_empty(&adapter->cmd_free_q)) { 67 mwifiex_dbg(adapter, ERROR, 68 "GET_CMD_NODE: cmd node not available\n"); 69 spin_unlock_bh(&adapter->cmd_free_q_lock); 70 return NULL; 71 } 72 cmd_node = list_first_entry(&adapter->cmd_free_q, 73 struct cmd_ctrl_node, list); 74 list_del(&cmd_node->list); 75 spin_unlock_bh(&adapter->cmd_free_q_lock); 76 77 return cmd_node; 78 } 79 80 /* 81 * This function cleans up a command node. 82 * 83 * The function resets the fields including the buffer pointers. 84 * This function does not try to free the buffers. They must be 85 * freed before calling this function. 86 * 87 * This function will however call the receive completion callback 88 * in case a response buffer is still available before resetting 89 * the pointer. 90 */ 91 static void 92 mwifiex_clean_cmd_node(struct mwifiex_adapter *adapter, 93 struct cmd_ctrl_node *cmd_node) 94 { 95 cmd_node->cmd_no = 0; 96 cmd_node->cmd_flag = 0; 97 cmd_node->data_buf = NULL; 98 cmd_node->wait_q_enabled = false; 99 100 if (cmd_node->cmd_skb) 101 skb_trim(cmd_node->cmd_skb, 0); 102 103 if (cmd_node->resp_skb) { 104 adapter->if_ops.cmdrsp_complete(adapter, cmd_node->resp_skb); 105 cmd_node->resp_skb = NULL; 106 } 107 } 108 109 /* 110 * This function returns a command to the command free queue. 111 * 112 * The function also calls the completion callback if required, before 113 * cleaning the command node and re-inserting it into the free queue. 114 */ 115 static void 116 mwifiex_insert_cmd_to_free_q(struct mwifiex_adapter *adapter, 117 struct cmd_ctrl_node *cmd_node) 118 { 119 if (!cmd_node) 120 return; 121 122 if (cmd_node->wait_q_enabled) 123 mwifiex_complete_cmd(adapter, cmd_node); 124 /* Clean the node */ 125 mwifiex_clean_cmd_node(adapter, cmd_node); 126 127 /* Insert node into cmd_free_q */ 128 spin_lock_bh(&adapter->cmd_free_q_lock); 129 list_add_tail(&cmd_node->list, &adapter->cmd_free_q); 130 spin_unlock_bh(&adapter->cmd_free_q_lock); 131 } 132 133 /* This function reuses a command node. */ 134 void mwifiex_recycle_cmd_node(struct mwifiex_adapter *adapter, 135 struct cmd_ctrl_node *cmd_node) 136 { 137 struct host_cmd_ds_command *host_cmd = (void *)cmd_node->cmd_skb->data; 138 139 mwifiex_insert_cmd_to_free_q(adapter, cmd_node); 140 141 atomic_dec(&adapter->cmd_pending); 142 mwifiex_dbg(adapter, CMD, 143 "cmd: FREE_CMD: cmd=%#x, cmd_pending=%d\n", 144 le16_to_cpu(host_cmd->command), 145 atomic_read(&adapter->cmd_pending)); 146 } 147 148 /* 149 * This function sends a host command to the firmware. 150 * 151 * The function copies the host command into the driver command 152 * buffer, which will be transferred to the firmware later by the 153 * main thread. 154 */ 155 static int mwifiex_cmd_host_cmd(struct mwifiex_private *priv, 156 struct host_cmd_ds_command *cmd, 157 struct mwifiex_ds_misc_cmd *pcmd_ptr) 158 { 159 /* Copy the HOST command to command buffer */ 160 memcpy(cmd, pcmd_ptr->cmd, pcmd_ptr->len); 161 mwifiex_dbg(priv->adapter, CMD, 162 "cmd: host cmd size = %d\n", pcmd_ptr->len); 163 return 0; 164 } 165 166 /* 167 * This function downloads a command to the firmware. 168 * 169 * The function performs sanity tests, sets the command sequence 170 * number and size, converts the header fields to CPU format before 171 * sending. Afterwards, it logs the command ID and action for debugging 172 * and sets up the command timeout timer. 173 */ 174 static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv, 175 struct cmd_ctrl_node *cmd_node) 176 { 177 178 struct mwifiex_adapter *adapter = priv->adapter; 179 int ret; 180 struct host_cmd_ds_command *host_cmd; 181 uint16_t cmd_code; 182 uint16_t cmd_size; 183 184 if (!adapter || !cmd_node) 185 return -1; 186 187 host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); 188 189 /* Sanity test */ 190 if (host_cmd->size == 0) { 191 mwifiex_dbg(adapter, ERROR, 192 "DNLD_CMD: host_cmd is null\t" 193 "or cmd size is 0, not sending\n"); 194 if (cmd_node->wait_q_enabled) 195 adapter->cmd_wait_q.status = -1; 196 mwifiex_recycle_cmd_node(adapter, cmd_node); 197 return -1; 198 } 199 200 cmd_code = le16_to_cpu(host_cmd->command); 201 cmd_node->cmd_no = cmd_code; 202 cmd_size = le16_to_cpu(host_cmd->size); 203 204 if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET && 205 cmd_code != HostCmd_CMD_FUNC_SHUTDOWN && 206 cmd_code != HostCmd_CMD_FUNC_INIT) { 207 mwifiex_dbg(adapter, ERROR, 208 "DNLD_CMD: FW in reset state, ignore cmd %#x\n", 209 cmd_code); 210 mwifiex_recycle_cmd_node(adapter, cmd_node); 211 queue_work(adapter->workqueue, &adapter->main_work); 212 return -1; 213 } 214 215 /* Set command sequence number */ 216 adapter->seq_num++; 217 host_cmd->seq_num = cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO 218 (adapter->seq_num, 219 cmd_node->priv->bss_num, 220 cmd_node->priv->bss_type)); 221 222 spin_lock_bh(&adapter->mwifiex_cmd_lock); 223 adapter->curr_cmd = cmd_node; 224 spin_unlock_bh(&adapter->mwifiex_cmd_lock); 225 226 /* Adjust skb length */ 227 if (cmd_node->cmd_skb->len > cmd_size) 228 /* 229 * cmd_size is less than sizeof(struct host_cmd_ds_command). 230 * Trim off the unused portion. 231 */ 232 skb_trim(cmd_node->cmd_skb, cmd_size); 233 else if (cmd_node->cmd_skb->len < cmd_size) 234 /* 235 * cmd_size is larger than sizeof(struct host_cmd_ds_command) 236 * because we have appended custom IE TLV. Increase skb length 237 * accordingly. 238 */ 239 skb_put(cmd_node->cmd_skb, cmd_size - cmd_node->cmd_skb->len); 240 241 mwifiex_dbg(adapter, CMD, 242 "cmd: DNLD_CMD: %#x, act %#x, len %d, seqno %#x\n", 243 cmd_code, 244 get_unaligned_le16((u8 *)host_cmd + S_DS_GEN), 245 cmd_size, le16_to_cpu(host_cmd->seq_num)); 246 mwifiex_dbg_dump(adapter, CMD_D, "cmd buffer:", host_cmd, cmd_size); 247 248 if (adapter->iface_type == MWIFIEX_USB) { 249 skb_push(cmd_node->cmd_skb, MWIFIEX_TYPE_LEN); 250 put_unaligned_le32(MWIFIEX_USB_TYPE_CMD, 251 cmd_node->cmd_skb->data); 252 adapter->cmd_sent = true; 253 ret = adapter->if_ops.host_to_card(adapter, 254 MWIFIEX_USB_EP_CMD_EVENT, 255 cmd_node->cmd_skb, NULL); 256 skb_pull(cmd_node->cmd_skb, MWIFIEX_TYPE_LEN); 257 if (ret == -EBUSY) 258 cmd_node->cmd_skb = NULL; 259 } else { 260 skb_push(cmd_node->cmd_skb, adapter->intf_hdr_len); 261 ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD, 262 cmd_node->cmd_skb, NULL); 263 skb_pull(cmd_node->cmd_skb, adapter->intf_hdr_len); 264 } 265 266 if (ret == -1) { 267 mwifiex_dbg(adapter, ERROR, 268 "DNLD_CMD: host to card failed\n"); 269 if (adapter->iface_type == MWIFIEX_USB) 270 adapter->cmd_sent = false; 271 if (cmd_node->wait_q_enabled) 272 adapter->cmd_wait_q.status = -1; 273 mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd); 274 275 spin_lock_bh(&adapter->mwifiex_cmd_lock); 276 adapter->curr_cmd = NULL; 277 spin_unlock_bh(&adapter->mwifiex_cmd_lock); 278 279 adapter->dbg.num_cmd_host_to_card_failure++; 280 return -1; 281 } 282 283 /* Save the last command id and action to debug log */ 284 adapter->dbg.last_cmd_index = 285 (adapter->dbg.last_cmd_index + 1) % DBG_CMD_NUM; 286 adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index] = cmd_code; 287 adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index] = 288 get_unaligned_le16((u8 *)host_cmd + S_DS_GEN); 289 290 /* Setup the timer after transmit command, except that specific 291 * command might not have command response. 292 */ 293 if (cmd_code != HostCmd_CMD_FW_DUMP_EVENT) 294 mod_timer(&adapter->cmd_timer, 295 jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S)); 296 297 /* Clear BSS_NO_BITS from HostCmd */ 298 cmd_code &= HostCmd_CMD_ID_MASK; 299 300 return 0; 301 } 302 303 /* 304 * This function downloads a sleep confirm command to the firmware. 305 * 306 * The function performs sanity tests, sets the command sequence 307 * number and size, converts the header fields to CPU format before 308 * sending. 309 * 310 * No responses are needed for sleep confirm command. 311 */ 312 static int mwifiex_dnld_sleep_confirm_cmd(struct mwifiex_adapter *adapter) 313 { 314 int ret; 315 struct mwifiex_private *priv; 316 struct mwifiex_opt_sleep_confirm *sleep_cfm_buf = 317 (struct mwifiex_opt_sleep_confirm *) 318 adapter->sleep_cfm->data; 319 struct sk_buff *sleep_cfm_tmp; 320 321 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 322 323 adapter->seq_num++; 324 sleep_cfm_buf->seq_num = 325 cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO 326 (adapter->seq_num, priv->bss_num, 327 priv->bss_type)); 328 329 mwifiex_dbg(adapter, CMD, 330 "cmd: DNLD_CMD: %#x, act %#x, len %d, seqno %#x\n", 331 le16_to_cpu(sleep_cfm_buf->command), 332 le16_to_cpu(sleep_cfm_buf->action), 333 le16_to_cpu(sleep_cfm_buf->size), 334 le16_to_cpu(sleep_cfm_buf->seq_num)); 335 mwifiex_dbg_dump(adapter, CMD_D, "SLEEP_CFM buffer: ", sleep_cfm_buf, 336 le16_to_cpu(sleep_cfm_buf->size)); 337 338 if (adapter->iface_type == MWIFIEX_USB) { 339 sleep_cfm_tmp = 340 dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm) 341 + MWIFIEX_TYPE_LEN); 342 if (!sleep_cfm_tmp) { 343 mwifiex_dbg(adapter, ERROR, 344 "SLEEP_CFM: dev_alloc_skb failed\n"); 345 return -ENOMEM; 346 } 347 348 skb_put(sleep_cfm_tmp, sizeof(struct mwifiex_opt_sleep_confirm) 349 + MWIFIEX_TYPE_LEN); 350 put_unaligned_le32(MWIFIEX_USB_TYPE_CMD, sleep_cfm_tmp->data); 351 memcpy(sleep_cfm_tmp->data + MWIFIEX_TYPE_LEN, 352 adapter->sleep_cfm->data, 353 sizeof(struct mwifiex_opt_sleep_confirm)); 354 ret = adapter->if_ops.host_to_card(adapter, 355 MWIFIEX_USB_EP_CMD_EVENT, 356 sleep_cfm_tmp, NULL); 357 if (ret != -EBUSY) 358 dev_kfree_skb_any(sleep_cfm_tmp); 359 } else { 360 skb_push(adapter->sleep_cfm, adapter->intf_hdr_len); 361 ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD, 362 adapter->sleep_cfm, NULL); 363 skb_pull(adapter->sleep_cfm, adapter->intf_hdr_len); 364 } 365 366 if (ret == -1) { 367 mwifiex_dbg(adapter, ERROR, "SLEEP_CFM: failed\n"); 368 adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure++; 369 return -1; 370 } 371 372 if (!le16_to_cpu(sleep_cfm_buf->resp_ctrl)) 373 /* Response is not needed for sleep confirm command */ 374 adapter->ps_state = PS_STATE_SLEEP; 375 else 376 adapter->ps_state = PS_STATE_SLEEP_CFM; 377 378 if (!le16_to_cpu(sleep_cfm_buf->resp_ctrl) && 379 (test_bit(MWIFIEX_IS_HS_CONFIGURED, &adapter->work_flags) && 380 !adapter->sleep_period.period)) { 381 adapter->pm_wakeup_card_req = true; 382 mwifiex_hs_activated_event(mwifiex_get_priv 383 (adapter, MWIFIEX_BSS_ROLE_ANY), true); 384 } 385 386 return ret; 387 } 388 389 /* 390 * This function allocates the command buffers and links them to 391 * the command free queue. 392 * 393 * The driver uses a pre allocated number of command buffers, which 394 * are created at driver initializations and freed at driver cleanup. 395 * Every command needs to obtain a command buffer from this pool before 396 * it can be issued. The command free queue lists the command buffers 397 * currently free to use, while the command pending queue lists the 398 * command buffers already in use and awaiting handling. Command buffers 399 * are returned to the free queue after use. 400 */ 401 int mwifiex_alloc_cmd_buffer(struct mwifiex_adapter *adapter) 402 { 403 struct cmd_ctrl_node *cmd_array; 404 u32 i; 405 406 /* Allocate and initialize struct cmd_ctrl_node */ 407 cmd_array = kcalloc(MWIFIEX_NUM_OF_CMD_BUFFER, 408 sizeof(struct cmd_ctrl_node), GFP_KERNEL); 409 if (!cmd_array) 410 return -ENOMEM; 411 412 adapter->cmd_pool = cmd_array; 413 414 /* Allocate and initialize command buffers */ 415 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) { 416 cmd_array[i].skb = dev_alloc_skb(MWIFIEX_SIZE_OF_CMD_BUFFER); 417 if (!cmd_array[i].skb) { 418 mwifiex_dbg(adapter, ERROR, 419 "unable to allocate command buffer\n"); 420 return -ENOMEM; 421 } 422 } 423 424 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) 425 mwifiex_insert_cmd_to_free_q(adapter, &cmd_array[i]); 426 427 return 0; 428 } 429 430 /* 431 * This function frees the command buffers. 432 * 433 * The function calls the completion callback for all the command 434 * buffers that still have response buffers associated with them. 435 */ 436 void mwifiex_free_cmd_buffer(struct mwifiex_adapter *adapter) 437 { 438 struct cmd_ctrl_node *cmd_array; 439 u32 i; 440 441 /* Need to check if cmd pool is allocated or not */ 442 if (!adapter->cmd_pool) { 443 mwifiex_dbg(adapter, FATAL, 444 "info: FREE_CMD_BUF: cmd_pool is null\n"); 445 return; 446 } 447 448 cmd_array = adapter->cmd_pool; 449 450 /* Release shared memory buffers */ 451 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) { 452 if (cmd_array[i].skb) { 453 mwifiex_dbg(adapter, CMD, 454 "cmd: free cmd buffer %d\n", i); 455 dev_kfree_skb_any(cmd_array[i].skb); 456 } 457 if (!cmd_array[i].resp_skb) 458 continue; 459 460 if (adapter->iface_type == MWIFIEX_USB) 461 adapter->if_ops.cmdrsp_complete(adapter, 462 cmd_array[i].resp_skb); 463 else 464 dev_kfree_skb_any(cmd_array[i].resp_skb); 465 } 466 /* Release struct cmd_ctrl_node */ 467 if (adapter->cmd_pool) { 468 mwifiex_dbg(adapter, CMD, 469 "cmd: free cmd pool\n"); 470 kfree(adapter->cmd_pool); 471 adapter->cmd_pool = NULL; 472 } 473 } 474 475 /* 476 * This function handles events generated by firmware. 477 * 478 * Event body of events received from firmware are not used (though they are 479 * saved), only the event ID is used. Some events are re-invoked by 480 * the driver, with a new event body. 481 * 482 * After processing, the function calls the completion callback 483 * for cleanup. 484 */ 485 int mwifiex_process_event(struct mwifiex_adapter *adapter) 486 { 487 int ret, i; 488 struct mwifiex_private *priv = 489 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 490 struct sk_buff *skb = adapter->event_skb; 491 u32 eventcause; 492 struct mwifiex_rxinfo *rx_info; 493 494 if ((adapter->event_cause & EVENT_ID_MASK) == EVENT_RADAR_DETECTED) { 495 for (i = 0; i < adapter->priv_num; i++) { 496 priv = adapter->priv[i]; 497 if (priv && mwifiex_is_11h_active(priv)) { 498 adapter->event_cause |= 499 ((priv->bss_num & 0xff) << 16) | 500 ((priv->bss_type & 0xff) << 24); 501 break; 502 } 503 } 504 } 505 506 eventcause = adapter->event_cause; 507 508 /* Save the last event to debug log */ 509 adapter->dbg.last_event_index = 510 (adapter->dbg.last_event_index + 1) % DBG_CMD_NUM; 511 adapter->dbg.last_event[adapter->dbg.last_event_index] = 512 (u16) eventcause; 513 514 /* Get BSS number and corresponding priv */ 515 priv = mwifiex_get_priv_by_id(adapter, EVENT_GET_BSS_NUM(eventcause), 516 EVENT_GET_BSS_TYPE(eventcause)); 517 if (!priv) 518 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 519 520 /* Clear BSS_NO_BITS from event */ 521 eventcause &= EVENT_ID_MASK; 522 adapter->event_cause = eventcause; 523 524 if (skb) { 525 rx_info = MWIFIEX_SKB_RXCB(skb); 526 memset(rx_info, 0, sizeof(*rx_info)); 527 rx_info->bss_num = priv->bss_num; 528 rx_info->bss_type = priv->bss_type; 529 mwifiex_dbg_dump(adapter, EVT_D, "Event Buf:", 530 skb->data, skb->len); 531 } 532 533 mwifiex_dbg(adapter, EVENT, "EVENT: cause: %#x\n", eventcause); 534 535 if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP) 536 ret = mwifiex_process_uap_event(priv); 537 else 538 ret = mwifiex_process_sta_event(priv); 539 540 adapter->event_cause = 0; 541 adapter->event_skb = NULL; 542 adapter->if_ops.event_complete(adapter, skb); 543 544 return ret; 545 } 546 547 /* 548 * This function prepares a command and send it to the firmware. 549 * 550 * Preparation includes - 551 * - Sanity tests to make sure the card is still present or the FW 552 * is not reset 553 * - Getting a new command node from the command free queue 554 * - Initializing the command node for default parameters 555 * - Fill up the non-default parameters and buffer pointers 556 * - Add the command to pending queue 557 */ 558 int mwifiex_send_cmd(struct mwifiex_private *priv, u16 cmd_no, 559 u16 cmd_action, u32 cmd_oid, void *data_buf, bool sync) 560 { 561 int ret; 562 struct mwifiex_adapter *adapter = priv->adapter; 563 struct cmd_ctrl_node *cmd_node; 564 struct host_cmd_ds_command *cmd_ptr; 565 566 if (!adapter) { 567 pr_err("PREP_CMD: adapter is NULL\n"); 568 return -1; 569 } 570 571 if (test_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags)) { 572 mwifiex_dbg(adapter, ERROR, 573 "PREP_CMD: device in suspended state\n"); 574 return -1; 575 } 576 577 if (test_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags) && 578 cmd_no != HostCmd_CMD_802_11_HS_CFG_ENH) { 579 mwifiex_dbg(adapter, ERROR, 580 "PREP_CMD: host entering sleep state\n"); 581 return -1; 582 } 583 584 if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags)) { 585 mwifiex_dbg(adapter, ERROR, 586 "PREP_CMD: card is removed\n"); 587 return -1; 588 } 589 590 if (test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) { 591 mwifiex_dbg(adapter, ERROR, 592 "PREP_CMD: FW is in bad state\n"); 593 return -1; 594 } 595 596 if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET) { 597 if (cmd_no != HostCmd_CMD_FUNC_INIT) { 598 mwifiex_dbg(adapter, ERROR, 599 "PREP_CMD: FW in reset state\n"); 600 return -1; 601 } 602 } 603 /* We don't expect commands in manufacturing mode. They are cooked 604 * in application and ready to download buffer is passed to the driver 605 */ 606 if (adapter->mfg_mode && cmd_no) { 607 dev_dbg(adapter->dev, "Ignoring commands in manufacturing mode\n"); 608 return -1; 609 } 610 611 if (priv->adapter->hs_activated_manually && 612 cmd_no != HostCmd_CMD_802_11_HS_CFG_ENH) { 613 mwifiex_cancel_hs(priv, MWIFIEX_ASYNC_CMD); 614 priv->adapter->hs_activated_manually = false; 615 } 616 617 /* Get a new command node */ 618 cmd_node = mwifiex_get_cmd_node(adapter); 619 620 if (!cmd_node) { 621 mwifiex_dbg(adapter, ERROR, 622 "PREP_CMD: no free cmd node\n"); 623 return -1; 624 } 625 626 /* Initialize the command node */ 627 mwifiex_init_cmd_node(priv, cmd_node, cmd_no, data_buf, sync); 628 629 if (!cmd_node->cmd_skb) { 630 mwifiex_dbg(adapter, ERROR, 631 "PREP_CMD: no free cmd buf\n"); 632 return -1; 633 } 634 635 skb_put_zero(cmd_node->cmd_skb, sizeof(struct host_cmd_ds_command)); 636 637 cmd_ptr = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); 638 cmd_ptr->command = cpu_to_le16(cmd_no); 639 cmd_ptr->result = 0; 640 641 /* Prepare command */ 642 if (cmd_no) { 643 switch (cmd_no) { 644 case HostCmd_CMD_UAP_SYS_CONFIG: 645 case HostCmd_CMD_UAP_BSS_START: 646 case HostCmd_CMD_UAP_BSS_STOP: 647 case HostCmd_CMD_UAP_STA_DEAUTH: 648 case HOST_CMD_APCMD_SYS_RESET: 649 case HOST_CMD_APCMD_STA_LIST: 650 ret = mwifiex_uap_prepare_cmd(priv, cmd_no, cmd_action, 651 cmd_oid, data_buf, 652 cmd_ptr); 653 break; 654 default: 655 ret = mwifiex_sta_prepare_cmd(priv, cmd_no, cmd_action, 656 cmd_oid, data_buf, 657 cmd_ptr); 658 break; 659 } 660 } else { 661 ret = mwifiex_cmd_host_cmd(priv, cmd_ptr, data_buf); 662 cmd_node->cmd_flag |= CMD_F_HOSTCMD; 663 } 664 665 /* Return error, since the command preparation failed */ 666 if (ret) { 667 mwifiex_dbg(adapter, ERROR, 668 "PREP_CMD: cmd %#x preparation failed\n", 669 cmd_no); 670 mwifiex_insert_cmd_to_free_q(adapter, cmd_node); 671 return -1; 672 } 673 674 /* Send command */ 675 if (cmd_no == HostCmd_CMD_802_11_SCAN || 676 cmd_no == HostCmd_CMD_802_11_SCAN_EXT) { 677 mwifiex_queue_scan_cmd(priv, cmd_node); 678 } else { 679 mwifiex_insert_cmd_to_pending_q(adapter, cmd_node); 680 queue_work(adapter->workqueue, &adapter->main_work); 681 if (cmd_node->wait_q_enabled) 682 ret = mwifiex_wait_queue_complete(adapter, cmd_node); 683 } 684 685 return ret; 686 } 687 688 /* 689 * This function queues a command to the command pending queue. 690 * 691 * This in effect adds the command to the command list to be executed. 692 * Exit PS command is handled specially, by placing it always to the 693 * front of the command queue. 694 */ 695 void 696 mwifiex_insert_cmd_to_pending_q(struct mwifiex_adapter *adapter, 697 struct cmd_ctrl_node *cmd_node) 698 { 699 struct host_cmd_ds_command *host_cmd = NULL; 700 u16 command; 701 bool add_tail = true; 702 703 host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); 704 if (!host_cmd) { 705 mwifiex_dbg(adapter, ERROR, "QUEUE_CMD: host_cmd is NULL\n"); 706 return; 707 } 708 709 command = le16_to_cpu(host_cmd->command); 710 711 /* Exit_PS command needs to be queued in the header always. */ 712 if (command == HostCmd_CMD_802_11_PS_MODE_ENH) { 713 struct host_cmd_ds_802_11_ps_mode_enh *pm = 714 &host_cmd->params.psmode_enh; 715 if ((le16_to_cpu(pm->action) == DIS_PS) || 716 (le16_to_cpu(pm->action) == DIS_AUTO_PS)) { 717 if (adapter->ps_state != PS_STATE_AWAKE) 718 add_tail = false; 719 } 720 } 721 722 /* Same with exit host sleep cmd, luckily that can't happen at the same time as EXIT_PS */ 723 if (command == HostCmd_CMD_802_11_HS_CFG_ENH) { 724 struct host_cmd_ds_802_11_hs_cfg_enh *hs_cfg = 725 &host_cmd->params.opt_hs_cfg; 726 727 if (le16_to_cpu(hs_cfg->action) == HS_ACTIVATE) 728 add_tail = false; 729 } 730 731 spin_lock_bh(&adapter->cmd_pending_q_lock); 732 if (add_tail) 733 list_add_tail(&cmd_node->list, &adapter->cmd_pending_q); 734 else 735 list_add(&cmd_node->list, &adapter->cmd_pending_q); 736 spin_unlock_bh(&adapter->cmd_pending_q_lock); 737 738 atomic_inc(&adapter->cmd_pending); 739 mwifiex_dbg(adapter, CMD, 740 "cmd: QUEUE_CMD: cmd=%#x, cmd_pending=%d\n", 741 command, atomic_read(&adapter->cmd_pending)); 742 } 743 744 /* 745 * This function executes the next command in command pending queue. 746 * 747 * This function will fail if a command is already in processing stage, 748 * otherwise it will dequeue the first command from the command pending 749 * queue and send to the firmware. 750 * 751 * If the device is currently in host sleep mode, any commands, except the 752 * host sleep configuration command will de-activate the host sleep. For PS 753 * mode, the function will put the firmware back to sleep if applicable. 754 */ 755 int mwifiex_exec_next_cmd(struct mwifiex_adapter *adapter) 756 { 757 struct mwifiex_private *priv; 758 struct cmd_ctrl_node *cmd_node; 759 int ret = 0; 760 struct host_cmd_ds_command *host_cmd; 761 762 /* Check if already in processing */ 763 if (adapter->curr_cmd) { 764 mwifiex_dbg(adapter, FATAL, 765 "EXEC_NEXT_CMD: cmd in processing\n"); 766 return -1; 767 } 768 769 spin_lock_bh(&adapter->mwifiex_cmd_lock); 770 /* Check if any command is pending */ 771 spin_lock_bh(&adapter->cmd_pending_q_lock); 772 if (list_empty(&adapter->cmd_pending_q)) { 773 spin_unlock_bh(&adapter->cmd_pending_q_lock); 774 spin_unlock_bh(&adapter->mwifiex_cmd_lock); 775 return 0; 776 } 777 cmd_node = list_first_entry(&adapter->cmd_pending_q, 778 struct cmd_ctrl_node, list); 779 780 host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); 781 priv = cmd_node->priv; 782 783 if (adapter->ps_state != PS_STATE_AWAKE) { 784 mwifiex_dbg(adapter, ERROR, 785 "%s: cannot send cmd in sleep state,\t" 786 "this should not happen\n", __func__); 787 spin_unlock_bh(&adapter->cmd_pending_q_lock); 788 spin_unlock_bh(&adapter->mwifiex_cmd_lock); 789 return ret; 790 } 791 792 list_del(&cmd_node->list); 793 spin_unlock_bh(&adapter->cmd_pending_q_lock); 794 795 spin_unlock_bh(&adapter->mwifiex_cmd_lock); 796 ret = mwifiex_dnld_cmd_to_fw(priv, cmd_node); 797 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 798 /* Any command sent to the firmware when host is in sleep 799 * mode should de-configure host sleep. We should skip the 800 * host sleep configuration command itself though 801 */ 802 if (priv && (host_cmd->command != 803 cpu_to_le16(HostCmd_CMD_802_11_HS_CFG_ENH))) { 804 if (adapter->hs_activated) { 805 clear_bit(MWIFIEX_IS_HS_CONFIGURED, 806 &adapter->work_flags); 807 mwifiex_hs_activated_event(priv, false); 808 } 809 } 810 811 return ret; 812 } 813 814 /* 815 * This function handles the command response. 816 * 817 * After processing, the function cleans the command node and puts 818 * it back to the command free queue. 819 */ 820 int mwifiex_process_cmdresp(struct mwifiex_adapter *adapter) 821 { 822 struct host_cmd_ds_command *resp; 823 struct mwifiex_private *priv = 824 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 825 int ret = 0; 826 uint16_t orig_cmdresp_no; 827 uint16_t cmdresp_no; 828 uint16_t cmdresp_result; 829 830 if (!adapter->curr_cmd || !adapter->curr_cmd->resp_skb) { 831 resp = (struct host_cmd_ds_command *) adapter->upld_buf; 832 mwifiex_dbg(adapter, ERROR, 833 "CMD_RESP: NULL curr_cmd, %#x\n", 834 le16_to_cpu(resp->command)); 835 return -1; 836 } 837 838 resp = (struct host_cmd_ds_command *)adapter->curr_cmd->resp_skb->data; 839 orig_cmdresp_no = le16_to_cpu(resp->command); 840 cmdresp_no = (orig_cmdresp_no & HostCmd_CMD_ID_MASK); 841 842 if (adapter->curr_cmd->cmd_no != cmdresp_no) { 843 mwifiex_dbg(adapter, ERROR, 844 "cmdresp error: cmd=0x%x cmd_resp=0x%x\n", 845 adapter->curr_cmd->cmd_no, cmdresp_no); 846 return -1; 847 } 848 /* Now we got response from FW, cancel the command timer */ 849 del_timer_sync(&adapter->cmd_timer); 850 clear_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags); 851 852 if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) { 853 /* Copy original response back to response buffer */ 854 struct mwifiex_ds_misc_cmd *hostcmd; 855 uint16_t size = le16_to_cpu(resp->size); 856 mwifiex_dbg(adapter, INFO, 857 "info: host cmd resp size = %d\n", size); 858 size = min_t(u16, size, MWIFIEX_SIZE_OF_CMD_BUFFER); 859 if (adapter->curr_cmd->data_buf) { 860 hostcmd = adapter->curr_cmd->data_buf; 861 hostcmd->len = size; 862 memcpy(hostcmd->cmd, resp, size); 863 } 864 } 865 866 /* Get BSS number and corresponding priv */ 867 priv = mwifiex_get_priv_by_id(adapter, 868 HostCmd_GET_BSS_NO(le16_to_cpu(resp->seq_num)), 869 HostCmd_GET_BSS_TYPE(le16_to_cpu(resp->seq_num))); 870 if (!priv) 871 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 872 /* Clear RET_BIT from HostCmd */ 873 resp->command = cpu_to_le16(orig_cmdresp_no & HostCmd_CMD_ID_MASK); 874 875 cmdresp_no = le16_to_cpu(resp->command); 876 cmdresp_result = le16_to_cpu(resp->result); 877 878 /* Save the last command response to debug log */ 879 adapter->dbg.last_cmd_resp_index = 880 (adapter->dbg.last_cmd_resp_index + 1) % DBG_CMD_NUM; 881 adapter->dbg.last_cmd_resp_id[adapter->dbg.last_cmd_resp_index] = 882 orig_cmdresp_no; 883 884 mwifiex_dbg(adapter, CMD, 885 "cmd: CMD_RESP: 0x%x, result %d, len %d, seqno 0x%x\n", 886 orig_cmdresp_no, cmdresp_result, 887 le16_to_cpu(resp->size), le16_to_cpu(resp->seq_num)); 888 mwifiex_dbg_dump(adapter, CMD_D, "CMD_RESP buffer:", resp, 889 le16_to_cpu(resp->size)); 890 891 if (!(orig_cmdresp_no & HostCmd_RET_BIT)) { 892 mwifiex_dbg(adapter, ERROR, "CMD_RESP: invalid cmd resp\n"); 893 if (adapter->curr_cmd->wait_q_enabled) 894 adapter->cmd_wait_q.status = -1; 895 896 mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd); 897 spin_lock_bh(&adapter->mwifiex_cmd_lock); 898 adapter->curr_cmd = NULL; 899 spin_unlock_bh(&adapter->mwifiex_cmd_lock); 900 return -1; 901 } 902 903 if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) { 904 adapter->curr_cmd->cmd_flag &= ~CMD_F_HOSTCMD; 905 if ((cmdresp_result == HostCmd_RESULT_OK) && 906 (cmdresp_no == HostCmd_CMD_802_11_HS_CFG_ENH)) 907 ret = mwifiex_ret_802_11_hs_cfg(priv, resp); 908 } else { 909 /* handle response */ 910 ret = mwifiex_process_sta_cmdresp(priv, cmdresp_no, resp); 911 } 912 913 /* Check init command response */ 914 if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) { 915 if (ret) { 916 mwifiex_dbg(adapter, ERROR, 917 "%s: cmd %#x failed during\t" 918 "initialization\n", __func__, cmdresp_no); 919 mwifiex_init_fw_complete(adapter); 920 return -1; 921 } else if (adapter->last_init_cmd == cmdresp_no) 922 adapter->hw_status = MWIFIEX_HW_STATUS_INIT_DONE; 923 } 924 925 if (adapter->curr_cmd) { 926 if (adapter->curr_cmd->wait_q_enabled) 927 adapter->cmd_wait_q.status = ret; 928 929 mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd); 930 931 spin_lock_bh(&adapter->mwifiex_cmd_lock); 932 adapter->curr_cmd = NULL; 933 spin_unlock_bh(&adapter->mwifiex_cmd_lock); 934 } 935 936 return ret; 937 } 938 939 /* 940 * This function handles the timeout of command sending. 941 * 942 * It will re-send the same command again. 943 */ 944 void 945 mwifiex_cmd_timeout_func(struct timer_list *t) 946 { 947 struct mwifiex_adapter *adapter = from_timer(adapter, t, cmd_timer); 948 struct cmd_ctrl_node *cmd_node; 949 950 set_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags); 951 if (!adapter->curr_cmd) { 952 mwifiex_dbg(adapter, ERROR, 953 "cmd: empty curr_cmd\n"); 954 return; 955 } 956 cmd_node = adapter->curr_cmd; 957 if (cmd_node) { 958 adapter->dbg.timeout_cmd_id = 959 adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index]; 960 adapter->dbg.timeout_cmd_act = 961 adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index]; 962 mwifiex_dbg(adapter, MSG, 963 "%s: Timeout cmd id = %#x, act = %#x\n", __func__, 964 adapter->dbg.timeout_cmd_id, 965 adapter->dbg.timeout_cmd_act); 966 967 mwifiex_dbg(adapter, MSG, 968 "num_data_h2c_failure = %d\n", 969 adapter->dbg.num_tx_host_to_card_failure); 970 mwifiex_dbg(adapter, MSG, 971 "num_cmd_h2c_failure = %d\n", 972 adapter->dbg.num_cmd_host_to_card_failure); 973 974 mwifiex_dbg(adapter, MSG, 975 "is_cmd_timedout = %d\n", 976 test_bit(MWIFIEX_IS_CMD_TIMEDOUT, 977 &adapter->work_flags)); 978 mwifiex_dbg(adapter, MSG, 979 "num_tx_timeout = %d\n", 980 adapter->dbg.num_tx_timeout); 981 982 mwifiex_dbg(adapter, MSG, 983 "last_cmd_index = %d\n", 984 adapter->dbg.last_cmd_index); 985 mwifiex_dbg(adapter, MSG, 986 "last_cmd_id: %*ph\n", 987 (int)sizeof(adapter->dbg.last_cmd_id), 988 adapter->dbg.last_cmd_id); 989 mwifiex_dbg(adapter, MSG, 990 "last_cmd_act: %*ph\n", 991 (int)sizeof(adapter->dbg.last_cmd_act), 992 adapter->dbg.last_cmd_act); 993 994 mwifiex_dbg(adapter, MSG, 995 "last_cmd_resp_index = %d\n", 996 adapter->dbg.last_cmd_resp_index); 997 mwifiex_dbg(adapter, MSG, 998 "last_cmd_resp_id: %*ph\n", 999 (int)sizeof(adapter->dbg.last_cmd_resp_id), 1000 adapter->dbg.last_cmd_resp_id); 1001 1002 mwifiex_dbg(adapter, MSG, 1003 "last_event_index = %d\n", 1004 adapter->dbg.last_event_index); 1005 mwifiex_dbg(adapter, MSG, 1006 "last_event: %*ph\n", 1007 (int)sizeof(adapter->dbg.last_event), 1008 adapter->dbg.last_event); 1009 1010 mwifiex_dbg(adapter, MSG, 1011 "data_sent=%d cmd_sent=%d\n", 1012 adapter->data_sent, adapter->cmd_sent); 1013 1014 mwifiex_dbg(adapter, MSG, 1015 "ps_mode=%d ps_state=%d\n", 1016 adapter->ps_mode, adapter->ps_state); 1017 1018 if (cmd_node->wait_q_enabled) { 1019 adapter->cmd_wait_q.status = -ETIMEDOUT; 1020 mwifiex_cancel_pending_ioctl(adapter); 1021 } 1022 } 1023 if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) { 1024 mwifiex_init_fw_complete(adapter); 1025 return; 1026 } 1027 1028 if (adapter->if_ops.device_dump) 1029 adapter->if_ops.device_dump(adapter); 1030 1031 if (adapter->if_ops.card_reset) 1032 adapter->if_ops.card_reset(adapter); 1033 } 1034 1035 void 1036 mwifiex_cancel_pending_scan_cmd(struct mwifiex_adapter *adapter) 1037 { 1038 struct cmd_ctrl_node *cmd_node = NULL, *tmp_node; 1039 1040 /* Cancel all pending scan command */ 1041 spin_lock_bh(&adapter->scan_pending_q_lock); 1042 list_for_each_entry_safe(cmd_node, tmp_node, 1043 &adapter->scan_pending_q, list) { 1044 list_del(&cmd_node->list); 1045 cmd_node->wait_q_enabled = false; 1046 mwifiex_insert_cmd_to_free_q(adapter, cmd_node); 1047 } 1048 spin_unlock_bh(&adapter->scan_pending_q_lock); 1049 } 1050 1051 /* 1052 * This function cancels all the pending commands. 1053 * 1054 * The current command, all commands in command pending queue and all scan 1055 * commands in scan pending queue are cancelled. All the completion callbacks 1056 * are called with failure status to ensure cleanup. 1057 */ 1058 void 1059 mwifiex_cancel_all_pending_cmd(struct mwifiex_adapter *adapter) 1060 { 1061 struct cmd_ctrl_node *cmd_node = NULL, *tmp_node; 1062 1063 spin_lock_bh(&adapter->mwifiex_cmd_lock); 1064 /* Cancel current cmd */ 1065 if ((adapter->curr_cmd) && (adapter->curr_cmd->wait_q_enabled)) { 1066 adapter->cmd_wait_q.status = -1; 1067 mwifiex_complete_cmd(adapter, adapter->curr_cmd); 1068 adapter->curr_cmd->wait_q_enabled = false; 1069 /* no recycle probably wait for response */ 1070 } 1071 /* Cancel all pending command */ 1072 spin_lock_bh(&adapter->cmd_pending_q_lock); 1073 list_for_each_entry_safe(cmd_node, tmp_node, 1074 &adapter->cmd_pending_q, list) { 1075 list_del(&cmd_node->list); 1076 1077 if (cmd_node->wait_q_enabled) 1078 adapter->cmd_wait_q.status = -1; 1079 mwifiex_recycle_cmd_node(adapter, cmd_node); 1080 } 1081 spin_unlock_bh(&adapter->cmd_pending_q_lock); 1082 spin_unlock_bh(&adapter->mwifiex_cmd_lock); 1083 1084 mwifiex_cancel_scan(adapter); 1085 } 1086 1087 /* 1088 * This function cancels all pending commands that matches with 1089 * the given IOCTL request. 1090 * 1091 * Both the current command buffer and the pending command queue are 1092 * searched for matching IOCTL request. The completion callback of 1093 * the matched command is called with failure status to ensure cleanup. 1094 * In case of scan commands, all pending commands in scan pending queue 1095 * are cancelled. 1096 */ 1097 static void 1098 mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter) 1099 { 1100 struct cmd_ctrl_node *cmd_node = NULL; 1101 1102 if ((adapter->curr_cmd) && 1103 (adapter->curr_cmd->wait_q_enabled)) { 1104 spin_lock_bh(&adapter->mwifiex_cmd_lock); 1105 cmd_node = adapter->curr_cmd; 1106 /* setting curr_cmd to NULL is quite dangerous, because 1107 * mwifiex_process_cmdresp checks curr_cmd to be != NULL 1108 * at the beginning then relies on it and dereferences 1109 * it at will 1110 * this probably works since mwifiex_cmd_timeout_func 1111 * is the only caller of this function and responses 1112 * at that point 1113 */ 1114 adapter->curr_cmd = NULL; 1115 spin_unlock_bh(&adapter->mwifiex_cmd_lock); 1116 1117 mwifiex_recycle_cmd_node(adapter, cmd_node); 1118 } 1119 1120 mwifiex_cancel_scan(adapter); 1121 } 1122 1123 /* 1124 * This function sends the sleep confirm command to firmware, if 1125 * possible. 1126 * 1127 * The sleep confirm command cannot be issued if command response, 1128 * data response or event response is awaiting handling, or if we 1129 * are in the middle of sending a command, or expecting a command 1130 * response. 1131 */ 1132 void 1133 mwifiex_check_ps_cond(struct mwifiex_adapter *adapter) 1134 { 1135 if (!adapter->cmd_sent && !atomic_read(&adapter->tx_hw_pending) && 1136 !adapter->curr_cmd && !IS_CARD_RX_RCVD(adapter)) 1137 mwifiex_dnld_sleep_confirm_cmd(adapter); 1138 else 1139 mwifiex_dbg(adapter, CMD, 1140 "cmd: Delay Sleep Confirm (%s%s%s%s)\n", 1141 (adapter->cmd_sent) ? "D" : "", 1142 atomic_read(&adapter->tx_hw_pending) ? "T" : "", 1143 (adapter->curr_cmd) ? "C" : "", 1144 (IS_CARD_RX_RCVD(adapter)) ? "R" : ""); 1145 } 1146 1147 /* 1148 * This function sends a Host Sleep activated event to applications. 1149 * 1150 * This event is generated by the driver, with a blank event body. 1151 */ 1152 void 1153 mwifiex_hs_activated_event(struct mwifiex_private *priv, u8 activated) 1154 { 1155 if (activated) { 1156 if (test_bit(MWIFIEX_IS_HS_CONFIGURED, 1157 &priv->adapter->work_flags)) { 1158 priv->adapter->hs_activated = true; 1159 mwifiex_update_rxreor_flags(priv->adapter, 1160 RXREOR_FORCE_NO_DROP); 1161 mwifiex_dbg(priv->adapter, EVENT, 1162 "event: hs_activated\n"); 1163 priv->adapter->hs_activate_wait_q_woken = true; 1164 wake_up_interruptible( 1165 &priv->adapter->hs_activate_wait_q); 1166 } else { 1167 mwifiex_dbg(priv->adapter, EVENT, 1168 "event: HS not configured\n"); 1169 } 1170 } else { 1171 mwifiex_dbg(priv->adapter, EVENT, 1172 "event: hs_deactivated\n"); 1173 priv->adapter->hs_activated = false; 1174 } 1175 } 1176 1177 /* 1178 * This function handles the command response of a Host Sleep configuration 1179 * command. 1180 * 1181 * Handling includes changing the header fields into CPU format 1182 * and setting the current host sleep activation status in driver. 1183 * 1184 * In case host sleep status change, the function generates an event to 1185 * notify the applications. 1186 */ 1187 int mwifiex_ret_802_11_hs_cfg(struct mwifiex_private *priv, 1188 struct host_cmd_ds_command *resp) 1189 { 1190 struct mwifiex_adapter *adapter = priv->adapter; 1191 struct host_cmd_ds_802_11_hs_cfg_enh *phs_cfg = 1192 &resp->params.opt_hs_cfg; 1193 uint32_t conditions = le32_to_cpu(phs_cfg->params.hs_config.conditions); 1194 1195 if (phs_cfg->action == cpu_to_le16(HS_ACTIVATE) && 1196 adapter->iface_type != MWIFIEX_USB) { 1197 mwifiex_hs_activated_event(priv, true); 1198 return 0; 1199 } else { 1200 mwifiex_dbg(adapter, CMD, 1201 "cmd: CMD_RESP: HS_CFG cmd reply\t" 1202 " result=%#x, conditions=0x%x gpio=0x%x gap=0x%x\n", 1203 resp->result, conditions, 1204 phs_cfg->params.hs_config.gpio, 1205 phs_cfg->params.hs_config.gap); 1206 } 1207 if (conditions != HS_CFG_CANCEL) { 1208 set_bit(MWIFIEX_IS_HS_CONFIGURED, &adapter->work_flags); 1209 if (adapter->iface_type == MWIFIEX_USB) 1210 mwifiex_hs_activated_event(priv, true); 1211 } else { 1212 clear_bit(MWIFIEX_IS_HS_CONFIGURED, &adapter->work_flags); 1213 if (adapter->hs_activated) 1214 mwifiex_hs_activated_event(priv, false); 1215 } 1216 1217 return 0; 1218 } 1219 1220 /* 1221 * This function wakes up the adapter and generates a Host Sleep 1222 * cancel event on receiving the power up interrupt. 1223 */ 1224 void 1225 mwifiex_process_hs_config(struct mwifiex_adapter *adapter) 1226 { 1227 mwifiex_dbg(adapter, INFO, 1228 "info: %s: auto cancelling host sleep\t" 1229 "since there is interrupt from the firmware\n", 1230 __func__); 1231 1232 adapter->if_ops.wakeup(adapter); 1233 1234 if (adapter->hs_activated_manually) { 1235 mwifiex_cancel_hs(mwifiex_get_priv (adapter, MWIFIEX_BSS_ROLE_ANY), 1236 MWIFIEX_ASYNC_CMD); 1237 adapter->hs_activated_manually = false; 1238 } 1239 1240 adapter->hs_activated = false; 1241 clear_bit(MWIFIEX_IS_HS_CONFIGURED, &adapter->work_flags); 1242 clear_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags); 1243 mwifiex_hs_activated_event(mwifiex_get_priv(adapter, 1244 MWIFIEX_BSS_ROLE_ANY), 1245 false); 1246 } 1247 EXPORT_SYMBOL_GPL(mwifiex_process_hs_config); 1248 1249 /* 1250 * This function handles the command response of a sleep confirm command. 1251 * 1252 * The function sets the card state to SLEEP if the response indicates success. 1253 */ 1254 void 1255 mwifiex_process_sleep_confirm_resp(struct mwifiex_adapter *adapter, 1256 u8 *pbuf, u32 upld_len) 1257 { 1258 struct host_cmd_ds_command *cmd = (struct host_cmd_ds_command *) pbuf; 1259 struct mwifiex_private *priv = 1260 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 1261 uint16_t result = le16_to_cpu(cmd->result); 1262 uint16_t command = le16_to_cpu(cmd->command); 1263 uint16_t seq_num = le16_to_cpu(cmd->seq_num); 1264 1265 if (!upld_len) { 1266 mwifiex_dbg(adapter, ERROR, 1267 "%s: cmd size is 0\n", __func__); 1268 return; 1269 } 1270 1271 mwifiex_dbg(adapter, CMD, 1272 "cmd: CMD_RESP: 0x%x, result %d, len %d, seqno 0x%x\n", 1273 command, result, le16_to_cpu(cmd->size), seq_num); 1274 1275 /* Get BSS number and corresponding priv */ 1276 priv = mwifiex_get_priv_by_id(adapter, HostCmd_GET_BSS_NO(seq_num), 1277 HostCmd_GET_BSS_TYPE(seq_num)); 1278 if (!priv) 1279 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 1280 1281 /* Update sequence number */ 1282 seq_num = HostCmd_GET_SEQ_NO(seq_num); 1283 /* Clear RET_BIT from HostCmd */ 1284 command &= HostCmd_CMD_ID_MASK; 1285 1286 if (command != HostCmd_CMD_802_11_PS_MODE_ENH) { 1287 mwifiex_dbg(adapter, ERROR, 1288 "%s: rcvd unexpected resp for cmd %#x, result = %x\n", 1289 __func__, command, result); 1290 return; 1291 } 1292 1293 if (result) { 1294 mwifiex_dbg(adapter, ERROR, 1295 "%s: sleep confirm cmd failed\n", 1296 __func__); 1297 adapter->pm_wakeup_card_req = false; 1298 adapter->ps_state = PS_STATE_AWAKE; 1299 return; 1300 } 1301 adapter->pm_wakeup_card_req = true; 1302 if (test_bit(MWIFIEX_IS_HS_CONFIGURED, &adapter->work_flags)) 1303 mwifiex_hs_activated_event(mwifiex_get_priv 1304 (adapter, MWIFIEX_BSS_ROLE_ANY), 1305 true); 1306 adapter->ps_state = PS_STATE_SLEEP; 1307 cmd->command = cpu_to_le16(command); 1308 cmd->seq_num = cpu_to_le16(seq_num); 1309 } 1310 EXPORT_SYMBOL_GPL(mwifiex_process_sleep_confirm_resp); 1311 1312 /* 1313 * This function prepares an enhanced power mode command. 1314 * 1315 * This function can be used to disable power save or to configure 1316 * power save with auto PS or STA PS or auto deep sleep. 1317 * 1318 * Preparation includes - 1319 * - Setting command ID, action and proper size 1320 * - Setting Power Save bitmap, PS parameters TLV, PS mode TLV, 1321 * auto deep sleep TLV (as required) 1322 * - Ensuring correct endian-ness 1323 */ 1324 int mwifiex_cmd_enh_power_mode(struct mwifiex_private *priv, 1325 struct host_cmd_ds_command *cmd, 1326 u16 cmd_action, uint16_t ps_bitmap, 1327 struct mwifiex_ds_auto_ds *auto_ds) 1328 { 1329 struct host_cmd_ds_802_11_ps_mode_enh *psmode_enh = 1330 &cmd->params.psmode_enh; 1331 u8 *tlv; 1332 u16 cmd_size = 0; 1333 1334 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH); 1335 if (cmd_action == DIS_AUTO_PS) { 1336 psmode_enh->action = cpu_to_le16(DIS_AUTO_PS); 1337 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap); 1338 cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) + 1339 sizeof(psmode_enh->params.ps_bitmap)); 1340 } else if (cmd_action == GET_PS) { 1341 psmode_enh->action = cpu_to_le16(GET_PS); 1342 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap); 1343 cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) + 1344 sizeof(psmode_enh->params.ps_bitmap)); 1345 } else if (cmd_action == EN_AUTO_PS) { 1346 psmode_enh->action = cpu_to_le16(EN_AUTO_PS); 1347 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap); 1348 cmd_size = S_DS_GEN + sizeof(psmode_enh->action) + 1349 sizeof(psmode_enh->params.ps_bitmap); 1350 tlv = (u8 *) cmd + cmd_size; 1351 if (ps_bitmap & BITMAP_STA_PS) { 1352 struct mwifiex_adapter *adapter = priv->adapter; 1353 struct mwifiex_ie_types_ps_param *ps_tlv = 1354 (struct mwifiex_ie_types_ps_param *) tlv; 1355 struct mwifiex_ps_param *ps_mode = &ps_tlv->param; 1356 ps_tlv->header.type = cpu_to_le16(TLV_TYPE_PS_PARAM); 1357 ps_tlv->header.len = cpu_to_le16(sizeof(*ps_tlv) - 1358 sizeof(struct mwifiex_ie_types_header)); 1359 cmd_size += sizeof(*ps_tlv); 1360 tlv += sizeof(*ps_tlv); 1361 mwifiex_dbg(priv->adapter, CMD, 1362 "cmd: PS Command: Enter PS\n"); 1363 ps_mode->null_pkt_interval = 1364 cpu_to_le16(adapter->null_pkt_interval); 1365 ps_mode->multiple_dtims = 1366 cpu_to_le16(adapter->multiple_dtim); 1367 ps_mode->bcn_miss_timeout = 1368 cpu_to_le16(adapter->bcn_miss_time_out); 1369 ps_mode->local_listen_interval = 1370 cpu_to_le16(adapter->local_listen_interval); 1371 ps_mode->adhoc_wake_period = 1372 cpu_to_le16(adapter->adhoc_awake_period); 1373 ps_mode->delay_to_ps = 1374 cpu_to_le16(adapter->delay_to_ps); 1375 ps_mode->mode = cpu_to_le16(adapter->enhanced_ps_mode); 1376 1377 } 1378 if (ps_bitmap & BITMAP_AUTO_DS) { 1379 struct mwifiex_ie_types_auto_ds_param *auto_ds_tlv = 1380 (struct mwifiex_ie_types_auto_ds_param *) tlv; 1381 u16 idletime = 0; 1382 1383 auto_ds_tlv->header.type = 1384 cpu_to_le16(TLV_TYPE_AUTO_DS_PARAM); 1385 auto_ds_tlv->header.len = 1386 cpu_to_le16(sizeof(*auto_ds_tlv) - 1387 sizeof(struct mwifiex_ie_types_header)); 1388 cmd_size += sizeof(*auto_ds_tlv); 1389 tlv += sizeof(*auto_ds_tlv); 1390 if (auto_ds) 1391 idletime = auto_ds->idle_time; 1392 mwifiex_dbg(priv->adapter, CMD, 1393 "cmd: PS Command: Enter Auto Deep Sleep\n"); 1394 auto_ds_tlv->deep_sleep_timeout = cpu_to_le16(idletime); 1395 } 1396 cmd->size = cpu_to_le16(cmd_size); 1397 } 1398 return 0; 1399 } 1400 1401 /* 1402 * This function handles the command response of an enhanced power mode 1403 * command. 1404 * 1405 * Handling includes changing the header fields into CPU format 1406 * and setting the current enhanced power mode in driver. 1407 */ 1408 int mwifiex_ret_enh_power_mode(struct mwifiex_private *priv, 1409 struct host_cmd_ds_command *resp, 1410 struct mwifiex_ds_pm_cfg *pm_cfg) 1411 { 1412 struct mwifiex_adapter *adapter = priv->adapter; 1413 struct host_cmd_ds_802_11_ps_mode_enh *ps_mode = 1414 &resp->params.psmode_enh; 1415 uint16_t action = le16_to_cpu(ps_mode->action); 1416 uint16_t ps_bitmap = le16_to_cpu(ps_mode->params.ps_bitmap); 1417 uint16_t auto_ps_bitmap = 1418 le16_to_cpu(ps_mode->params.ps_bitmap); 1419 1420 mwifiex_dbg(adapter, INFO, 1421 "info: %s: PS_MODE cmd reply result=%#x action=%#X\n", 1422 __func__, resp->result, action); 1423 if (action == EN_AUTO_PS) { 1424 if (auto_ps_bitmap & BITMAP_AUTO_DS) { 1425 mwifiex_dbg(adapter, CMD, 1426 "cmd: Enabled auto deep sleep\n"); 1427 priv->adapter->is_deep_sleep = true; 1428 } 1429 if (auto_ps_bitmap & BITMAP_STA_PS) { 1430 mwifiex_dbg(adapter, CMD, 1431 "cmd: Enabled STA power save\n"); 1432 if (adapter->sleep_period.period) 1433 mwifiex_dbg(adapter, CMD, 1434 "cmd: set to uapsd/pps mode\n"); 1435 } 1436 } else if (action == DIS_AUTO_PS) { 1437 if (ps_bitmap & BITMAP_AUTO_DS) { 1438 priv->adapter->is_deep_sleep = false; 1439 mwifiex_dbg(adapter, CMD, 1440 "cmd: Disabled auto deep sleep\n"); 1441 } 1442 if (ps_bitmap & BITMAP_STA_PS) { 1443 mwifiex_dbg(adapter, CMD, 1444 "cmd: Disabled STA power save\n"); 1445 if (adapter->sleep_period.period) { 1446 adapter->delay_null_pkt = false; 1447 adapter->tx_lock_flag = false; 1448 adapter->pps_uapsd_mode = false; 1449 } 1450 } 1451 } else if (action == GET_PS) { 1452 if (ps_bitmap & BITMAP_STA_PS) 1453 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP; 1454 else 1455 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; 1456 1457 mwifiex_dbg(adapter, CMD, 1458 "cmd: ps_bitmap=%#x\n", ps_bitmap); 1459 1460 if (pm_cfg) { 1461 /* This section is for get power save mode */ 1462 if (ps_bitmap & BITMAP_STA_PS) 1463 pm_cfg->param.ps_mode = 1; 1464 else 1465 pm_cfg->param.ps_mode = 0; 1466 } 1467 } 1468 return 0; 1469 } 1470 1471 /* 1472 * This function prepares command to get hardware specifications. 1473 * 1474 * Preparation includes - 1475 * - Setting command ID, action and proper size 1476 * - Setting permanent address parameter 1477 * - Ensuring correct endian-ness 1478 */ 1479 int mwifiex_cmd_get_hw_spec(struct mwifiex_private *priv, 1480 struct host_cmd_ds_command *cmd) 1481 { 1482 struct host_cmd_ds_get_hw_spec *hw_spec = &cmd->params.hw_spec; 1483 1484 cmd->command = cpu_to_le16(HostCmd_CMD_GET_HW_SPEC); 1485 cmd->size = 1486 cpu_to_le16(sizeof(struct host_cmd_ds_get_hw_spec) + S_DS_GEN); 1487 memcpy(hw_spec->permanent_addr, priv->curr_addr, ETH_ALEN); 1488 1489 return 0; 1490 } 1491 1492 /* 1493 * This function handles the command response of get hardware 1494 * specifications. 1495 * 1496 * Handling includes changing the header fields into CPU format 1497 * and saving/updating the following parameters in driver - 1498 * - Firmware capability information 1499 * - Firmware band settings 1500 * - Ad-hoc start band and channel 1501 * - Ad-hoc 11n activation status 1502 * - Firmware release number 1503 * - Number of antennas 1504 * - Hardware address 1505 * - Hardware interface version 1506 * - Firmware version 1507 * - Region code 1508 * - 11n capabilities 1509 * - MCS support fields 1510 * - MP end port 1511 */ 1512 int mwifiex_ret_get_hw_spec(struct mwifiex_private *priv, 1513 struct host_cmd_ds_command *resp) 1514 { 1515 struct host_cmd_ds_get_hw_spec *hw_spec = &resp->params.hw_spec; 1516 struct mwifiex_adapter *adapter = priv->adapter; 1517 struct mwifiex_ie_types_header *tlv; 1518 struct hw_spec_api_rev *api_rev; 1519 struct hw_spec_max_conn *max_conn; 1520 u16 resp_size, api_id; 1521 int i, left_len, parsed_len = 0; 1522 1523 adapter->fw_cap_info = le32_to_cpu(hw_spec->fw_cap_info); 1524 1525 if (IS_SUPPORT_MULTI_BANDS(adapter)) 1526 adapter->fw_bands = (u8) GET_FW_DEFAULT_BANDS(adapter); 1527 else 1528 adapter->fw_bands = BAND_B; 1529 1530 adapter->config_bands = adapter->fw_bands; 1531 1532 if (adapter->fw_bands & BAND_A) { 1533 if (adapter->fw_bands & BAND_GN) { 1534 adapter->config_bands |= BAND_AN; 1535 adapter->fw_bands |= BAND_AN; 1536 } 1537 if (adapter->fw_bands & BAND_AN) { 1538 adapter->adhoc_start_band = BAND_A | BAND_AN; 1539 adapter->adhoc_11n_enabled = true; 1540 } else { 1541 adapter->adhoc_start_band = BAND_A; 1542 } 1543 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL_A; 1544 } else if (adapter->fw_bands & BAND_GN) { 1545 adapter->adhoc_start_band = BAND_G | BAND_B | BAND_GN; 1546 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; 1547 adapter->adhoc_11n_enabled = true; 1548 } else if (adapter->fw_bands & BAND_G) { 1549 adapter->adhoc_start_band = BAND_G | BAND_B; 1550 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; 1551 } else if (adapter->fw_bands & BAND_B) { 1552 adapter->adhoc_start_band = BAND_B; 1553 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; 1554 } 1555 1556 adapter->fw_release_number = le32_to_cpu(hw_spec->fw_release_number); 1557 adapter->fw_api_ver = (adapter->fw_release_number >> 16) & 0xff; 1558 adapter->number_of_antenna = 1559 le16_to_cpu(hw_spec->number_of_antenna) & 0xf; 1560 1561 if (le32_to_cpu(hw_spec->dot_11ac_dev_cap)) { 1562 adapter->is_hw_11ac_capable = true; 1563 1564 /* Copy 11AC cap */ 1565 adapter->hw_dot_11ac_dev_cap = 1566 le32_to_cpu(hw_spec->dot_11ac_dev_cap); 1567 adapter->usr_dot_11ac_dev_cap_bg = adapter->hw_dot_11ac_dev_cap 1568 & ~MWIFIEX_DEF_11AC_CAP_BF_RESET_MASK; 1569 adapter->usr_dot_11ac_dev_cap_a = adapter->hw_dot_11ac_dev_cap 1570 & ~MWIFIEX_DEF_11AC_CAP_BF_RESET_MASK; 1571 1572 /* Copy 11AC mcs */ 1573 adapter->hw_dot_11ac_mcs_support = 1574 le32_to_cpu(hw_spec->dot_11ac_mcs_support); 1575 adapter->usr_dot_11ac_mcs_support = 1576 adapter->hw_dot_11ac_mcs_support; 1577 } else { 1578 adapter->is_hw_11ac_capable = false; 1579 } 1580 1581 resp_size = le16_to_cpu(resp->size) - S_DS_GEN; 1582 if (resp_size > sizeof(struct host_cmd_ds_get_hw_spec)) { 1583 /* we have variable HW SPEC information */ 1584 left_len = resp_size - sizeof(struct host_cmd_ds_get_hw_spec); 1585 while (left_len > sizeof(struct mwifiex_ie_types_header)) { 1586 tlv = (void *)&hw_spec->tlvs + parsed_len; 1587 switch (le16_to_cpu(tlv->type)) { 1588 case TLV_TYPE_API_REV: 1589 api_rev = (struct hw_spec_api_rev *)tlv; 1590 api_id = le16_to_cpu(api_rev->api_id); 1591 switch (api_id) { 1592 case KEY_API_VER_ID: 1593 adapter->key_api_major_ver = 1594 api_rev->major_ver; 1595 adapter->key_api_minor_ver = 1596 api_rev->minor_ver; 1597 mwifiex_dbg(adapter, INFO, 1598 "key_api v%d.%d\n", 1599 adapter->key_api_major_ver, 1600 adapter->key_api_minor_ver); 1601 break; 1602 case FW_API_VER_ID: 1603 adapter->fw_api_ver = 1604 api_rev->major_ver; 1605 mwifiex_dbg(adapter, INFO, 1606 "Firmware api version %d.%d\n", 1607 adapter->fw_api_ver, 1608 api_rev->minor_ver); 1609 break; 1610 case UAP_FW_API_VER_ID: 1611 mwifiex_dbg(adapter, INFO, 1612 "uAP api version %d.%d\n", 1613 api_rev->major_ver, 1614 api_rev->minor_ver); 1615 break; 1616 case CHANRPT_API_VER_ID: 1617 mwifiex_dbg(adapter, INFO, 1618 "channel report api version %d.%d\n", 1619 api_rev->major_ver, 1620 api_rev->minor_ver); 1621 break; 1622 default: 1623 mwifiex_dbg(adapter, FATAL, 1624 "Unknown api_id: %d\n", 1625 api_id); 1626 break; 1627 } 1628 break; 1629 case TLV_TYPE_MAX_CONN: 1630 max_conn = (struct hw_spec_max_conn *)tlv; 1631 adapter->max_p2p_conn = max_conn->max_p2p_conn; 1632 adapter->max_sta_conn = max_conn->max_sta_conn; 1633 mwifiex_dbg(adapter, INFO, 1634 "max p2p connections: %u\n", 1635 adapter->max_p2p_conn); 1636 mwifiex_dbg(adapter, INFO, 1637 "max sta connections: %u\n", 1638 adapter->max_sta_conn); 1639 break; 1640 default: 1641 mwifiex_dbg(adapter, FATAL, 1642 "Unknown GET_HW_SPEC TLV type: %#x\n", 1643 le16_to_cpu(tlv->type)); 1644 break; 1645 } 1646 parsed_len += le16_to_cpu(tlv->len) + 1647 sizeof(struct mwifiex_ie_types_header); 1648 left_len -= le16_to_cpu(tlv->len) + 1649 sizeof(struct mwifiex_ie_types_header); 1650 } 1651 } 1652 1653 mwifiex_dbg(adapter, INFO, 1654 "info: GET_HW_SPEC: fw_release_number- %#x\n", 1655 adapter->fw_release_number); 1656 mwifiex_dbg(adapter, INFO, 1657 "info: GET_HW_SPEC: permanent addr: %pM\n", 1658 hw_spec->permanent_addr); 1659 mwifiex_dbg(adapter, INFO, 1660 "info: GET_HW_SPEC: hw_if_version=%#x version=%#x\n", 1661 le16_to_cpu(hw_spec->hw_if_version), 1662 le16_to_cpu(hw_spec->version)); 1663 1664 ether_addr_copy(priv->adapter->perm_addr, hw_spec->permanent_addr); 1665 adapter->region_code = le16_to_cpu(hw_spec->region_code); 1666 1667 for (i = 0; i < MWIFIEX_MAX_REGION_CODE; i++) 1668 /* Use the region code to search for the index */ 1669 if (adapter->region_code == region_code_index[i]) 1670 break; 1671 1672 /* If it's unidentified region code, use the default (world) */ 1673 if (i >= MWIFIEX_MAX_REGION_CODE) { 1674 adapter->region_code = 0x00; 1675 mwifiex_dbg(adapter, WARN, 1676 "cmd: unknown region code, use default (USA)\n"); 1677 } 1678 1679 adapter->hw_dot_11n_dev_cap = le32_to_cpu(hw_spec->dot_11n_dev_cap); 1680 adapter->hw_dev_mcs_support = hw_spec->dev_mcs_support; 1681 adapter->user_dev_mcs_support = adapter->hw_dev_mcs_support; 1682 1683 if (adapter->if_ops.update_mp_end_port) 1684 adapter->if_ops.update_mp_end_port(adapter, 1685 le16_to_cpu(hw_spec->mp_end_port)); 1686 1687 if (adapter->fw_api_ver == MWIFIEX_FW_V15) 1688 adapter->scan_chan_gap_enabled = true; 1689 1690 return 0; 1691 } 1692 1693 /* This function handles the command response of hs wakeup reason 1694 * command. 1695 */ 1696 int mwifiex_ret_wakeup_reason(struct mwifiex_private *priv, 1697 struct host_cmd_ds_command *resp, 1698 struct host_cmd_ds_wakeup_reason *wakeup_reason) 1699 { 1700 wakeup_reason->wakeup_reason = 1701 resp->params.hs_wakeup_reason.wakeup_reason; 1702 1703 return 0; 1704 } 1705